1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 3# 2014, 2015, 2016, 2019, 2020 Free Software Foundation, Inc. 4# 5# This file is free software; you can redistribute it and/or modify it 6# under the terms of the GNU General Public License as published by 7# the Free Software Foundation; either version 3 of the License, or 8# (at your option) any later version. 9# 10# This program is distributed in the hope that it will be useful, but 11# WITHOUT ANY WARRANTY; without even the implied warranty of 12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13# General Public License for more details. 14# 15# You should have received a copy of the GNU General Public License 16# along with this program; see the file COPYING3. If not see 17# <http://www.gnu.org/licenses/>. 18 19############################################################################## 20### WARNING: this file contains embedded tabs. Do not run untabify on this file. 21 22m4_include(config/acx.m4) 23m4_include(config/override.m4) 24m4_include(config/proginstall.m4) 25m4_include(config/elf.m4) 26m4_include(config/gcc-plugin.m4) 27m4_include([libtool.m4]) 28m4_include([ltoptions.m4]) 29m4_include([ltsugar.m4]) 30m4_include([ltversion.m4]) 31m4_include([lt~obsolete.m4]) 32m4_include([config/isl.m4]) 33 34AC_INIT(move-if-change) 35AC_DISABLE_OPTION_CHECKING 36 37progname=$0 38# if PWD already has a value, it is probably wrong. 39if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi 40 41# Export original configure arguments for use by sub-configures. 42# Quote arguments with shell meta charatcers. 43TOPLEVEL_CONFIGURE_ARGUMENTS= 44set -- "$progname" "$@" 45for ac_arg 46do 47 case "$ac_arg" in 48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*) 49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` 50 # if the argument is of the form -foo=baz, quote the baz part only 51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;; 52 *) ;; 53 esac 54 # Add the quoted argument to the list. 55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg" 56done 57if test "$silent" = yes; then 58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent" 59fi 60# Remove the initial space we just introduced and, as these will be 61# expanded by make, quote '$'. 62TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'` 63AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS) 64 65# Find the build, host, and target systems. 66ACX_NONCANONICAL_BUILD 67ACX_NONCANONICAL_HOST 68ACX_NONCANONICAL_TARGET 69 70dnl Autoconf 2.5x and later will set a default program prefix if 71dnl --target was used, even if it was the same as --host. Disable 72dnl that behavior. This must be done before AC_CANONICAL_SYSTEM 73dnl to take effect. 74test "$host_noncanonical" = "$target_noncanonical" && 75 test "$program_prefix$program_suffix$program_transform_name" = \ 76 NONENONEs,x,x, && 77 program_transform_name=s,y,y, 78 79AC_CANONICAL_SYSTEM 80AC_ARG_PROGRAM 81 82m4_pattern_allow([^AS_FOR_TARGET$])dnl 83m4_pattern_allow([^AS_FOR_BUILD$])dnl 84 85# Get 'install' or 'install-sh' and its variants. 86AC_PROG_INSTALL 87ACX_PROG_LN 88AC_PROG_LN_S 89AC_PROG_SED 90AC_PROG_AWK 91 92srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}` 93 94# We pass INSTALL explicitly to sub-makes. Make sure that it is not 95# a relative path. 96if test "$INSTALL" = "${srcdir}/install-sh -c"; then 97 INSTALL="${srcpwd}/install-sh -c" 98fi 99 100# Set srcdir to "." if that's what it is. 101# This is important for multilib support. 102pwd=`${PWDCMD-pwd}` 103if test "${pwd}" = "${srcpwd}" ; then 104 srcdir=. 105fi 106 107topsrcdir=$srcpwd 108 109extra_host_args= 110 111### To add a new directory to the tree, first choose whether it is a target 112### or a host dependent tool. Then put it into the appropriate list 113### (library or tools, host or target), doing a dependency sort. 114 115# Subdirs will be configured in the order listed in build_configdirs, 116# configdirs, or target_configdirs; see the serialization section below. 117 118# Dependency sorting is only needed when *configuration* must be done in 119# a particular order. In all cases a dependency should be specified in 120# the Makefile, whether or not it's implicitly specified here. 121 122# Double entries in build_configdirs, configdirs, or target_configdirs may 123# cause circular dependencies and break everything horribly. 124 125# these library is used by various programs built for the build 126# environment 127# 128build_libs="build-libiberty build-libcpp" 129 130# these tools are built for the build environment 131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes" 132 133# these libraries are used by various programs built for the host environment 134#f 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv libctf" 136 137# these tools are built for the host environment 138# Note, the powerpc-eabi build depends on sim occurring before gdb in order to 139# know that we are building the simulator. 140# binutils, gas and ld appear in that order because it makes sense to run 141# "make check" in that particular order. 142# If --enable-gold is used, "gold" may replace "ld". 143host_tools="flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools" 144 145# these libraries are built for the target environment, and are built after 146# the host libraries and the host tools (which may be a cross compiler) 147# Note that libiberty is not a target library. 148target_libraries="target-libgcc \ 149 target-libbacktrace \ 150 target-libgloss \ 151 target-newlib \ 152 target-libgomp \ 153 target-liboffloadmic \ 154 target-libhsail-rt \ 155 target-libatomic \ 156 target-libitm \ 157 target-libstdc++-v3 \ 158 target-libsanitizer \ 159 target-libvtv \ 160 target-libssp \ 161 target-libquadmath \ 162 target-libgfortran \ 163 target-libffi \ 164 target-libobjc \ 165 target-libada \ 166 target-libgo" 167 168# these tools are built using the target libraries, and are intended to 169# run only in the target environment 170# 171# note: any program that *uses* libraries that are in the "target_libraries" 172# list belongs in this list. 173# 174target_tools="target-rda" 175 176################################################################################ 177 178## All tools belong in one of the four categories, and are assigned above 179## We assign ${configdirs} this way to remove all embedded newlines. This 180## is important because configure will choke if they ever get through. 181## ${configdirs} is directories we build using the host tools. 182## ${target_configdirs} is directories we build using the target tools. 183configdirs=`echo ${host_libs} ${host_tools}` 184target_configdirs=`echo ${target_libraries} ${target_tools}` 185build_configdirs=`echo ${build_libs} ${build_tools}` 186 187m4_divert_text([PARSE_ARGS], 188[case $srcdir in 189 *" "*) 190m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl 191 AC_MSG_ERROR([path to source, $srcdir, contains spaces]) 192m4_popdef([AS_MESSAGE_LOG_FD])dnl 193 ;; 194esac 195ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'` 196]) 197 198################################################################################ 199 200srcname="gnu development package" 201 202# This gets set non-empty for some net releases of packages. 203appdirs="" 204 205# Define is_cross_compiler to save on calls to 'test'. 206is_cross_compiler= 207if test x"${host}" = x"${target}" ; then 208 is_cross_compiler=no 209else 210 is_cross_compiler=yes 211fi 212 213# Find the build and target subdir names. 214GCC_TOPLEV_SUBDIRS 215# Be sure to cover against remnants of an in-tree build. 216if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then 217 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}. 218Use a pristine source tree when building in a separate tree]) 219fi 220 221# Skipdirs are removed silently. 222skipdirs= 223# Noconfigdirs are removed loudly. 224noconfigdirs="" 225 226use_gnu_ld= 227# Make sure we don't let GNU ld be added if we didn't want it. 228if test x$with_gnu_ld = xno ; then 229 use_gnu_ld=no 230 noconfigdirs="$noconfigdirs ld gold" 231fi 232 233use_gnu_as= 234# Make sure we don't let GNU as be added if we didn't want it. 235if test x$with_gnu_as = xno ; then 236 use_gnu_as=no 237 noconfigdirs="$noconfigdirs gas" 238fi 239 240use_included_zlib= 241AC_ARG_WITH(system-zlib, 242[AS_HELP_STRING([--with-system-zlib], [use installed libz])]) 243# Make sure we don't let ZLIB be added if we didn't want it. 244if test x$with_system_zlib = xyes ; then 245 use_included_zlib=no 246 noconfigdirs="$noconfigdirs zlib" 247fi 248 249# Don't compile the bundled readline/libreadline.a if --with-system-readline 250# is provided. 251if test x$with_system_readline = xyes ; then 252 noconfigdirs="$noconfigdirs readline" 253fi 254 255# some tools are so dependent upon X11 that if we're not building with X, 256# it's not even worth trying to configure, much less build, that tool. 257 258case ${with_x} in 259 yes | "") ;; # the default value for this tree is that X11 is available 260 no) 261 skipdirs="${skipdirs} tk itcl libgui" 262 # We won't be able to build gdbtk without X. 263 enable_gdbtk=no 264 ;; 265 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;; 266esac 267 268# Some are only suitable for cross toolchains. 269# Remove these if host=target. 270cross_only="target-libgloss target-newlib target-opcodes" 271 272case $is_cross_compiler in 273 no) skipdirs="${skipdirs} ${cross_only}" ;; 274esac 275 276# If both --with-headers and --with-libs are specified, default to 277# --without-newlib. 278if test x"${with_headers}" != x && test x"${with_headers}" != xno \ 279 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then 280 if test x"${with_newlib}" = x ; then 281 with_newlib=no 282 fi 283fi 284 285# Recognize --with-newlib/--without-newlib. 286case ${with_newlib} in 287 no) skipdirs="${skipdirs} target-newlib" ;; 288 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;; 289esac 290 291AC_ARG_ENABLE(as-accelerator-for, 292[AS_HELP_STRING([--enable-as-accelerator-for=ARG], 293 [build as offload target compiler. 294 Specify offload host triple by ARG])]) 295 296AC_ARG_ENABLE(offload-targets, 297[AS_HELP_STRING([--enable-offload-targets=LIST], 298 [enable offloading to devices from comma-separated LIST of 299 TARGET[=DIR]. Use optional path to find offload target compiler 300 during the build])], 301[ 302 if test x"$enable_offload_targets" = x; then 303 AC_MSG_ERROR([no offload targets specified]) 304 fi 305], [enable_offload_targets=]) 306 307# Handle --enable-gold, --enable-ld. 308# --disable-gold [--enable-ld] 309# Build only ld. Default option. 310# --enable-gold [--enable-ld] 311# Build both gold and ld. Install gold as "ld.gold", install ld 312# as "ld.bfd" and "ld". 313# --enable-gold=default [--enable-ld] 314# Build both gold and ld. Install gold as "ld.gold" and "ld", 315# install ld as "ld.bfd". 316# --enable-gold[=default] --disable-ld 317# Build only gold, which is then installed as both "ld.gold" and "ld". 318# --enable-gold --enable-ld=default 319# Build both gold (installed as "ld.gold") and ld (installed as "ld" 320# and ld.bfd). 321# In other words, ld is default 322# --enable-gold=default --enable-ld=default 323# Error. 324 325default_ld= 326AC_ARG_ENABLE(gold, 327[AS_HELP_STRING([[--enable-gold[=ARG]]], 328 [build gold @<:@ARG={default,yes,no}@:>@])], 329ENABLE_GOLD=$enableval, 330ENABLE_GOLD=no) 331case "${ENABLE_GOLD}" in 332 yes|default) 333 # Check for ELF target. 334 is_elf=no 335 case "${target}" in 336 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \ 337 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \ 338 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \ 339 | *-*-solaris2* | *-*-nto* | *-*-nacl*) 340 case "${target}" in 341 *-*-linux*aout* | *-*-linux*oldld*) 342 ;; 343 *) 344 is_elf=yes 345 ;; 346 esac 347 esac 348 349 if test "$is_elf" = "yes"; then 350 # Check for target supported by gold. 351 case "${target}" in 352 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \ 353 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*) 354 configdirs="$configdirs gold" 355 if test x${ENABLE_GOLD} = xdefault; then 356 default_ld=gold 357 fi 358 ENABLE_GOLD=yes 359 ;; 360 esac 361 fi 362 ;; 363 no) 364 ;; 365 *) 366 AC_MSG_ERROR([invalid --enable-gold argument]) 367 ;; 368esac 369 370AC_ARG_ENABLE(ld, 371[AS_HELP_STRING([[--enable-ld[=ARG]]], 372 [build ld @<:@ARG={default,yes,no}@:>@])], 373ENABLE_LD=$enableval, 374ENABLE_LD=yes) 375 376case "${ENABLE_LD}" in 377 default) 378 if test x${default_ld} != x; then 379 AC_MSG_ERROR([either gold or ld can be the default ld]) 380 fi 381 ;; 382 yes) 383 ;; 384 no) 385 if test x${ENABLE_GOLD} != xyes; then 386 AC_MSG_WARN([neither ld nor gold are enabled]) 387 fi 388 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'` 389 ;; 390 *) 391 AC_MSG_ERROR([invalid --enable-ld argument]) 392 ;; 393esac 394 395# PR gas/19109 396# Decide the default method for compressing debug sections. 397# Provide a configure time option to override our default. 398AC_ARG_ENABLE(compressed_debug_sections, 399[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}], 400 [Enable compressed debug sections for gas, gold or ld by 401 default])], 402[ 403 if test x"$enable_compressed_debug_sections" = xyes; then 404 AC_MSG_ERROR([no program with compressed debug sections specified]) 405 fi 406], [enable_compressed_debug_sections=]) 407 408# Configure extra directories which are host specific 409 410case "${host}" in 411 *-cygwin*) 412 configdirs="$configdirs libtermcap" ;; 413esac 414 415# A target can indicate whether a language isn't supported for some reason. 416# Only spaces may be used in this macro; not newlines or tabs. 417unsupported_languages= 418 419# Remove more programs from consideration, based on the host or 420# target this usually means that a port of the program doesn't 421# exist yet. 422 423case "${host}" in 424 i[[3456789]]86-*-msdosdjgpp*) 425 noconfigdirs="$noconfigdirs tcl tk itcl" 426 ;; 427esac 428 429 430AC_ARG_ENABLE(libquadmath, 431AS_HELP_STRING([--disable-libquadmath], 432 [do not build libquadmath directory]), 433ENABLE_LIBQUADMATH=$enableval, 434ENABLE_LIBQUADMATH=yes) 435if test "${ENABLE_LIBQUADMATH}" = "no" ; then 436 noconfigdirs="$noconfigdirs target-libquadmath" 437fi 438 439 440AC_ARG_ENABLE(libquadmath-support, 441AS_HELP_STRING([--disable-libquadmath-support], 442 [disable libquadmath support for Fortran]), 443ENABLE_LIBQUADMATH_SUPPORT=$enableval, 444ENABLE_LIBQUADMATH_SUPPORT=yes) 445enable_libquadmath_support= 446if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then 447 enable_libquadmath_support=no 448fi 449 450 451AC_ARG_ENABLE(libada, 452[AS_HELP_STRING([--enable-libada], [build libada directory])], 453ENABLE_LIBADA=$enableval, 454ENABLE_LIBADA=yes) 455if test "${ENABLE_LIBADA}" != "yes" ; then 456 noconfigdirs="$noconfigdirs gnattools" 457fi 458 459AC_ARG_ENABLE(libssp, 460[AS_HELP_STRING([--enable-libssp], [build libssp directory])], 461ENABLE_LIBSSP=$enableval, 462ENABLE_LIBSSP=yes) 463 464AC_ARG_ENABLE(libstdcxx, 465AS_HELP_STRING([--disable-libstdcxx], 466 [do not build libstdc++-v3 directory]), 467ENABLE_LIBSTDCXX=$enableval, 468ENABLE_LIBSTDCXX=default) 469[if test "${ENABLE_LIBSTDCXX}" = "no" ; then 470 noconfigdirs="$noconfigdirs target-libstdc++-v3" 471fi] 472 473# If this is accelerator compiler and its target is intelmic we enable 474# target liboffloadmic by default. If this is compiler with offloading 475# for intelmic we enable host liboffloadmic by default. Otherwise 476# liboffloadmic is disabled by default. 477AC_ARG_ENABLE([liboffloadmic], 478AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]], 479 [build liboffloadmic @<:@ARG={no,host,target}@:>@]), 480[case "$enableval" in 481 no | host | target) 482 enable_liboffloadmic=$enableval ;; 483 *) 484 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;; 485esac], 486[if test x"$enable_as_accelerator_for" != x; then 487 case "${target}" in 488 *-intelmic-* | *-intelmicemul-*) 489 enable_liboffloadmic=target 490 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target" 491 ;; 492 *) 493 enable_liboffloadmic=no 494 ;; 495 esac 496else 497 case "${enable_offload_targets}" in 498 *-intelmic-* | *-intelmicemul-*) 499 enable_liboffloadmic=host 500 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host" 501 ;; 502 *) 503 enable_liboffloadmic=no 504 ;; 505 esac 506fi]) 507AC_SUBST(extra_liboffloadmic_configure_flags) 508 509# Enable libgomp by default on hosted POSIX systems, and a few others. 510if test x$enable_libgomp = x ; then 511 case "${target}" in 512 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 513 ;; 514 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*) 515 ;; 516 *-*-solaris2* | *-*-hpux11*) 517 ;; 518 *-*-darwin* | *-*-aix*) 519 ;; 520 nvptx*-*-*) 521 ;; 522 *) 523 noconfigdirs="$noconfigdirs target-libgomp" 524 ;; 525 esac 526fi 527 528# Disable libatomic on unsupported systems. 529if test -d ${srcdir}/libatomic; then 530 if test x$enable_libatomic = x; then 531 AC_MSG_CHECKING([for libatomic support]) 532 if (srcdir=${srcdir}/libatomic; \ 533 . ${srcdir}/configure.tgt; \ 534 test -n "$UNSUPPORTED") 535 then 536 AC_MSG_RESULT([no]) 537 noconfigdirs="$noconfigdirs target-libatomic" 538 else 539 AC_MSG_RESULT([yes]) 540 fi 541 fi 542fi 543 544# Disable liboffloadmic on unsupported systems. 545if test -d ${srcdir}/liboffloadmic; then 546 if test x$enable_liboffloadmic != xno; then 547 AC_MSG_CHECKING([for liboffloadmic support]) 548 if (srcdir=${srcdir}/liboffloadmic; \ 549 . ${srcdir}/configure.tgt; \ 550 test -n "$UNSUPPORTED") 551 then 552 AC_MSG_RESULT([no]) 553 noconfigdirs="$noconfigdirs target-liboffloadmic" 554 else 555 AC_MSG_RESULT([yes]) 556 fi 557 fi 558fi 559 560# Disable libitm on unsupported systems. 561if test -d ${srcdir}/libitm; then 562 if test x$enable_libitm = x; then 563 AC_MSG_CHECKING([for libitm support]) 564 if (srcdir=${srcdir}/libitm; \ 565 . ${srcdir}/configure.tgt; \ 566 test -n "$UNSUPPORTED") 567 then 568 AC_MSG_RESULT([no]) 569 noconfigdirs="$noconfigdirs target-libitm" 570 else 571 AC_MSG_RESULT([yes]) 572 fi 573 fi 574fi 575 576# Disable libsanitizer on unsupported systems. 577if test -d ${srcdir}/libsanitizer; then 578 if test x$enable_libsanitizer = x; then 579 AC_MSG_CHECKING([for libsanitizer support]) 580 if (srcdir=${srcdir}/libsanitizer; \ 581 . ${srcdir}/configure.tgt; \ 582 test -n "$UNSUPPORTED") 583 then 584 AC_MSG_RESULT([no]) 585 noconfigdirs="$noconfigdirs target-libsanitizer" 586 else 587 AC_MSG_RESULT([yes]) 588 fi 589 fi 590fi 591 592# Disable libvtv on unsupported systems. 593if test -d ${srcdir}/libvtv; then 594 if test x$enable_libvtv = x; then 595 AC_MSG_CHECKING([for libvtv support]) 596 if (srcdir=${srcdir}/libvtv; \ 597 . ${srcdir}/configure.tgt; \ 598 test "$VTV_SUPPORTED" != "yes") 599 then 600 AC_MSG_RESULT([no]) 601 noconfigdirs="$noconfigdirs target-libvtv" 602 else 603 AC_MSG_RESULT([yes]) 604 fi 605 fi 606fi 607 608 609# Disable libhsail-rt on unsupported systems. 610if test -d ${srcdir}/libhsail-rt; then 611 if test x$enable_libhsail_rt = x; then 612 AC_MSG_CHECKING([for libhsail-rt support]) 613 if (srcdir=${srcdir}/libhsail-rt; \ 614 . ${srcdir}/configure.tgt; \ 615 test -n "$UNSUPPORTED") 616 then 617 AC_MSG_RESULT([no]) 618 unsupported_languages="$unsupported_languages brig" 619 # This implicitly disables also target-libhsail-rt as it won't 620 # get added to the build without BRIG FE. 621 else 622 AC_MSG_RESULT([yes]) 623 fi 624 fi 625fi 626 627 628# Disable libquadmath for some systems. 629case "${target}" in 630 avr-*-*) 631 noconfigdirs="$noconfigdirs target-libquadmath" 632 ;; 633 # libquadmath is unused on AIX and libquadmath build process use of 634 # LD_LIBRARY_PATH can break AIX bootstrap. 635 powerpc-*-aix* | rs6000-*-aix*) 636 noconfigdirs="$noconfigdirs target-libquadmath" 637 ;; 638esac 639 640# Disable libssp for some systems. 641case "${target}" in 642 avr-*-*) 643 # No hosted I/O support. 644 noconfigdirs="$noconfigdirs target-libssp" 645 ;; 646 powerpc-*-aix* | rs6000-*-aix*) 647 noconfigdirs="$noconfigdirs target-libssp" 648 ;; 649 rl78-*-*) 650 # libssp uses a misaligned load to trigger a fault, but the RL78 651 # doesn't fault for those - instead, it gives a build-time error 652 # for explicit misaligned loads. 653 noconfigdirs="$noconfigdirs target-libssp" 654 ;; 655 visium-*-*) 656 # No hosted I/O support. 657 noconfigdirs="$noconfigdirs target-libssp" 658 ;; 659esac 660 661# Disable libstdc++-v3 for some systems. 662# Allow user to override this if they pass --enable-libstdc++-v3 663if test "${ENABLE_LIBSTDCXX}" = "default" ; then 664 case "${target}" in 665 *-*-vxworks*) 666 # VxWorks uses the Dinkumware C++ library. 667 noconfigdirs="$noconfigdirs target-libstdc++-v3" 668 ;; 669 arm*-wince-pe*) 670 # the C++ libraries don't build on top of CE's C libraries 671 noconfigdirs="$noconfigdirs target-libstdc++-v3" 672 ;; 673 avr-*-*) 674 noconfigdirs="$noconfigdirs target-libstdc++-v3" 675 ;; 676 ft32-*-*) 677 noconfigdirs="$noconfigdirs target-libstdc++-v3" 678 ;; 679 esac 680fi 681 682# Disable Fortran for some systems. 683case "${target}" in 684 mmix-*-*) 685 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>. 686 unsupported_languages="$unsupported_languages fortran" 687 ;; 688esac 689 690# Disable libffi for some systems. 691case "${target}" in 692 powerpc-*-darwin*) 693 ;; 694 i[[3456789]]86-*-darwin*) 695 ;; 696 x86_64-*-darwin[[912]]*) 697 ;; 698 *-*-darwin*) 699 noconfigdirs="$noconfigdirs target-libffi" 700 ;; 701 *-*-netware*) 702 noconfigdirs="$noconfigdirs target-libffi" 703 ;; 704 *-*-phoenix*) 705 noconfigdirs="$noconfigdirs target-libffi" 706 ;; 707 *-*-rtems*) 708 noconfigdirs="$noconfigdirs target-libffi" 709 ;; 710 *-*-tpf*) 711 noconfigdirs="$noconfigdirs target-libffi" 712 ;; 713 *-*-uclinux*) 714 noconfigdirs="$noconfigdirs target-libffi" 715 ;; 716 *-*-vxworks*) 717 noconfigdirs="$noconfigdirs target-libffi" 718 ;; 719 aarch64*-*-freebsd*) 720 noconfigdirs="$noconfigdirs target-libffi" 721 ;; 722 alpha*-*-*vms*) 723 noconfigdirs="$noconfigdirs target-libffi" 724 ;; 725 arm*-*-freebsd*) 726 noconfigdirs="$noconfigdirs target-libffi" 727 ;; 728 arm-wince-pe) 729 noconfigdirs="$noconfigdirs target-libffi" 730 ;; 731 cris-*-* | crisv32-*-*) 732 case "${target}" in 733 *-*-linux*) 734 ;; 735 *) # See PR46792 regarding target-libffi. 736 noconfigdirs="$noconfigdirs target-libffi";; 737 esac 738 ;; 739 hppa*64*-*-hpux*) 740 noconfigdirs="$noconfigdirs target-libffi" 741 ;; 742 hppa*-hp-hpux11*) 743 ;; 744 hppa*-*-hpux*) 745 noconfigdirs="$noconfigdirs target-libffi" 746 ;; 747 ia64*-*-*vms*) 748 noconfigdirs="$noconfigdirs target-libffi" 749 ;; 750 i[[3456789]]86-w64-mingw*) 751 noconfigdirs="$noconfigdirs target-libffi" 752 ;; 753 i[[3456789]]86-*-mingw*) 754 noconfigdirs="$noconfigdirs target-libffi" 755 ;; 756 x86_64-*-mingw*) 757 noconfigdirs="$noconfigdirs target-libffi" 758 ;; 759 mmix-*-*) 760 noconfigdirs="$noconfigdirs target-libffi" 761 ;; 762 powerpc-*-aix*) 763 ;; 764 rs6000-*-aix*) 765 ;; 766 ft32-*-*) 767 noconfigdirs="$noconfigdirs target-libffi" 768 ;; 769 *-*-lynxos*) 770 noconfigdirs="$noconfigdirs target-libffi" 771 ;; 772esac 773 774# Disable the go frontend on systems where it is known to not work. Please keep 775# this in sync with contrib/config-list.mk. 776case "${target}" in 777*-*-darwin* | *-*-cygwin* | *-*-mingw*) 778 unsupported_languages="$unsupported_languages go" 779 ;; 780esac 781 782# Only allow gdbserver on some systems. 783if test -d ${srcdir}/gdbserver; then 784 if test x$enable_gdbserver = x; then 785 AC_MSG_CHECKING([for gdbserver support]) 786 if (srcdir=${srcdir}/gdbserver; \ 787 . ${srcdir}/configure.srv; \ 788 test -n "$UNSUPPORTED") 789 then 790 AC_MSG_RESULT([no]) 791 noconfigdirs="$noconfigdirs gdbserver" 792 else 793 AC_MSG_RESULT([yes]) 794 fi 795 fi 796fi 797 798# Disable libgo for some systems where it is known to not work. 799# For testing, you can easily override this with --enable-libgo. 800if test x$enable_libgo = x; then 801 case "${target}" in 802 *-*-darwin*) 803 # PR 46986 804 noconfigdirs="$noconfigdirs target-libgo" 805 ;; 806 *-*-cygwin* | *-*-mingw*) 807 noconfigdirs="$noconfigdirs target-libgo" 808 ;; 809 esac 810fi 811 812# Default libgloss CPU subdirectory. 813libgloss_dir="$target_cpu" 814 815case "${target}" in 816 sh*-*-pe|mips*-*-pe|*arm-wince-pe) 817 libgloss_dir=wince 818 ;; 819 aarch64*-*-* ) 820 libgloss_dir=aarch64 821 ;; 822 arm*-*-*) 823 libgloss_dir=arm 824 ;; 825 cris-*-* | crisv32-*-*) 826 libgloss_dir=cris 827 ;; 828 hppa*-*-*) 829 libgloss_dir=pa 830 ;; 831 i[[3456789]]86-*-*) 832 libgloss_dir=i386 833 ;; 834 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*) 835 libgloss_dir=m68hc11 836 ;; 837 m68*-*-* | fido-*-*) 838 libgloss_dir=m68k 839 ;; 840 mips*-*-*) 841 libgloss_dir=mips 842 ;; 843 powerpc*-*-*) 844 libgloss_dir=rs6000 845 ;; 846 sparc*-*-*) 847 libgloss_dir=sparc 848 ;; 849esac 850 851# Disable newlib and libgloss for various target OSes. 852case "${target}" in 853 alpha*-dec-osf*) 854 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 855 ;; 856 i[[3456789]]86-*-linux*) 857 # This section makes it possible to build newlib natively on linux. 858 # If we are using a cross compiler then don't configure newlib. 859 if test x${is_cross_compiler} != xno ; then 860 noconfigdirs="$noconfigdirs target-newlib" 861 fi 862 noconfigdirs="$noconfigdirs target-libgloss" 863 # If we are not using a cross compiler, do configure newlib. 864 # Note however, that newlib will only be configured in this situation 865 # if the --with-newlib option has been given, because otherwise 866 # 'target-newlib' will appear in skipdirs. 867 ;; 868 i[[3456789]]86-*-rdos*) 869 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 870 ;; 871 sh*-*-pe|mips*-*-pe|arm-wince-pe) 872 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 873 ;; 874 sparc-*-sunos4*) 875 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 876 ;; 877 *-*-aix*) 878 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 879 ;; 880 *-*-beos*) 881 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 882 ;; 883 *-*-chorusos) 884 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 885 ;; 886 *-*-dragonfly*) 887 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 888 ;; 889 *-*-freebsd*) 890 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 891 ;; 892 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 893 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 894 ;; 895 *-*-lynxos*) 896 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 897 ;; 898 *-*-mingw*) 899 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 900 ;; 901 *-*-netbsd*) 902 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 903 ;; 904 *-*-netware*) 905 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 906 ;; 907 *-*-tpf*) 908 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 909 ;; 910 *-*-uclinux*) 911 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 912 ;; 913 *-*-vxworks*) 914 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 915 ;; 916esac 917 918case "${target}" in 919 *-*-chorusos) 920 ;; 921 aarch64-*-darwin*) 922 noconfigdirs="$noconfigdirs ld gas gdb gprof" 923 noconfigdirs="$noconfigdirs sim target-rda" 924 ;; 925 arm-*-darwin*) 926 noconfigdirs="$noconfigdirs ld gas gdb gprof" 927 noconfigdirs="$noconfigdirs sim target-rda" 928 ;; 929 powerpc-*-darwin*) 930 noconfigdirs="$noconfigdirs ld gas gdb gprof" 931 noconfigdirs="$noconfigdirs sim target-rda" 932 ;; 933 i[[3456789]]86-*-darwin*) 934 noconfigdirs="$noconfigdirs ld gprof" 935 noconfigdirs="$noconfigdirs sim target-rda" 936 ;; 937 x86_64-*-darwin[[912]]*) 938 noconfigdirs="$noconfigdirs ld gas gprof" 939 noconfigdirs="$noconfigdirs sim target-rda" 940 ;; 941 *-*-darwin*) 942 noconfigdirs="$noconfigdirs ld gas gdb gprof" 943 noconfigdirs="$noconfigdirs sim target-rda" 944 ;; 945 *-*-dragonfly*) 946 ;; 947 *-*-freebsd*) 948 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \ 949 && test -f /usr/local/include/gmp.h; then 950 with_gmp=/usr/local 951 fi 952 ;; 953 *-*-kaos*) 954 # Remove unsupported stuff on all kaOS configurations. 955 noconfigdirs="$noconfigdirs target-libgloss" 956 ;; 957 *-*-netbsd*) 958 ;; 959 *-*-netware*) 960 ;; 961 *-*-phoenix*) 962 noconfigdirs="$noconfigdirs target-libgloss" 963 ;; 964 *-*-rtems*) 965 noconfigdirs="$noconfigdirs target-libgloss" 966 ;; 967 # The tpf target doesn't support gdb yet. 968 *-*-tpf*) 969 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl" 970 ;; 971 *-*-uclinux*) 972 noconfigdirs="$noconfigdirs target-rda" 973 ;; 974 *-*-vxworks*) 975 ;; 976 alpha*-dec-osf*) 977 # ld works, but does not support shared libraries. 978 # gas doesn't generate exception information. 979 noconfigdirs="$noconfigdirs gas ld" 980 ;; 981 alpha*-*-*vms*) 982 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss" 983 ;; 984 alpha*-*-*) 985 # newlib is not 64 bit ready 986 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 987 ;; 988 sh*-*-pe|mips*-*-pe|*arm-wince-pe) 989 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim" 990 ;; 991 arc*-*-*) 992 noconfigdirs="$noconfigdirs sim" 993 ;; 994 arm-*-pe*) 995 noconfigdirs="$noconfigdirs target-libgloss" 996 ;; 997 arm-*-riscix*) 998 noconfigdirs="$noconfigdirs ld target-libgloss" 999 ;; 1000 avr-*-*) 1001 if test x${with_avrlibc} != xno; then 1002 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1003 fi 1004 ;; 1005 c4x-*-* | tic4x-*-*) 1006 noconfigdirs="$noconfigdirs target-libgloss" 1007 ;; 1008 tic54x-*-*) 1009 noconfigdirs="$noconfigdirs target-libgloss gdb" 1010 ;; 1011 d10v-*-*) 1012 noconfigdirs="$noconfigdirs target-libgloss" 1013 ;; 1014 d30v-*-*) 1015 noconfigdirs="$noconfigdirs gdb" 1016 ;; 1017 fr30-*-elf*) 1018 noconfigdirs="$noconfigdirs gdb" 1019 ;; 1020 ft32-*-*) 1021 noconfigdirs="$noconfigdirs target-rda gprof" 1022 ;; 1023 moxie-*-*) 1024 noconfigdirs="$noconfigdirs" 1025 ;; 1026 h8300*-*-*) 1027 noconfigdirs="$noconfigdirs target-libgloss" 1028 ;; 1029 h8500-*-*) 1030 noconfigdirs="$noconfigdirs target-libgloss" 1031 ;; 1032 hppa1.1-*-osf* | hppa1.1-*-bsd* ) 1033 ;; 1034 hppa*64*-*-hpux*) 1035 noconfigdirs="$noconfigdirs gdb" 1036 ;; 1037 hppa*-*-hpux11*) 1038 noconfigdirs="$noconfigdirs gdb ld" 1039 ;; 1040 hppa*64*-*-linux*) 1041 ;; 1042 hppa*-*-linux*) 1043 ;; 1044 hppa*-*-*elf* | \ 1045 hppa*-*-lites* | \ 1046 hppa*-*-openbsd* | \ 1047 hppa*64*-*-*) 1048 ;; 1049 hppa*-*-pro*) 1050 ;; 1051 hppa*-*-*) 1052 noconfigdirs="$noconfigdirs ld" 1053 ;; 1054 i960-*-*) 1055 noconfigdirs="$noconfigdirs gdb" 1056 ;; 1057 ia64*-*-elf*) 1058 # No gdb support yet. 1059 noconfigdirs="$noconfigdirs readline libgui itcl gdb" 1060 ;; 1061 ia64*-**-hpux*) 1062 # No ld support yet. 1063 noconfigdirs="$noconfigdirs gdb libgui itcl ld" 1064 ;; 1065 ia64*-*-*vms*) 1066 # No ld support yet. 1067 noconfigdirs="$noconfigdirs libgui itcl ld" 1068 ;; 1069 i[[3456789]]86-w64-mingw*) 1070 ;; 1071 i[[3456789]]86-*-mingw*) 1072 target_configdirs="$target_configdirs target-winsup" 1073 ;; 1074 *-*-cygwin*) 1075 target_configdirs="$target_configdirs target-libtermcap target-winsup" 1076 noconfigdirs="$noconfigdirs target-libgloss" 1077 # always build newlib if winsup directory is present. 1078 if test -d "$srcdir/winsup/cygwin"; then 1079 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` 1080 elif test -d "$srcdir/newlib"; then 1081 echo "Warning: winsup/cygwin is missing so newlib can't be built." 1082 fi 1083 ;; 1084 i[[3456789]]86-*-pe) 1085 noconfigdirs="$noconfigdirs target-libgloss" 1086 ;; 1087 i[[3456789]]86-*-sco3.2v5*) 1088 # The linker does not yet know about weak symbols in COFF, 1089 # and is not configured to handle mixed ELF and COFF. 1090 noconfigdirs="$noconfigdirs ld target-libgloss" 1091 ;; 1092 i[[3456789]]86-*-sco*) 1093 noconfigdirs="$noconfigdirs gprof target-libgloss" 1094 ;; 1095 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*) 1096 noconfigdirs="$noconfigdirs target-libgloss" 1097 ;; 1098 i[[3456789]]86-*-sysv4*) 1099 noconfigdirs="$noconfigdirs target-libgloss" 1100 ;; 1101 i[[3456789]]86-*-beos*) 1102 noconfigdirs="$noconfigdirs gdb" 1103 ;; 1104 i[[3456789]]86-*-rdos*) 1105 noconfigdirs="$noconfigdirs gdb" 1106 ;; 1107 mmix-*-*) 1108 noconfigdirs="$noconfigdirs gdb" 1109 ;; 1110 mt-*-*) 1111 noconfigdirs="$noconfigdirs sim" 1112 ;; 1113 nfp-*-*) 1114 noconfigdirs="$noconfigdirs ld gas gdb gprof sim" 1115 noconfigdirs="$noconfigdirs $target_libraries" 1116 ;; 1117 pdp11-*-*) 1118 noconfigdirs="$noconfigdirs gdb gprof" 1119 ;; 1120 powerpc-*-aix*) 1121 # copied from rs6000-*-* entry 1122 noconfigdirs="$noconfigdirs gprof" 1123 ;; 1124 powerpc*-*-winnt* | powerpc*-*-pe*) 1125 target_configdirs="$target_configdirs target-winsup" 1126 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl" 1127 # always build newlib. 1128 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` 1129 ;; 1130 # This is temporary until we can link against shared libraries 1131 powerpcle-*-solaris*) 1132 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl" 1133 ;; 1134 powerpc-*-beos*) 1135 noconfigdirs="$noconfigdirs gdb" 1136 ;; 1137 rs6000-*-lynxos*) 1138 noconfigdirs="$noconfigdirs gprof" 1139 ;; 1140 rs6000-*-aix*) 1141 noconfigdirs="$noconfigdirs gprof" 1142 ;; 1143 rs6000-*-*) 1144 noconfigdirs="$noconfigdirs gprof" 1145 ;; 1146 m68k-apollo-*) 1147 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss" 1148 ;; 1149 microblaze*) 1150 noconfigdirs="$noconfigdirs gprof" 1151 ;; 1152 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) 1153 if test x$with_newlib = xyes; then 1154 noconfigdirs="$noconfigdirs gprof" 1155 fi 1156 ;; 1157 mips*-*-irix5*) 1158 noconfigdirs="$noconfigdirs gprof target-libgloss" 1159 ;; 1160 mips*-*-irix6*) 1161 noconfigdirs="$noconfigdirs gprof target-libgloss" 1162 ;; 1163 mips*-*-bsd*) 1164 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss" 1165 ;; 1166 mips*-*-linux*) 1167 ;; 1168 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \ 1169 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*) 1170 noconfigdirs="$noconfigdirs ld gas gprof" 1171 ;; 1172 mips*-*-*) 1173 noconfigdirs="$noconfigdirs gprof" 1174 ;; 1175 nvptx*-*-*) 1176 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc" 1177 ;; 1178 sh-*-*) 1179 case "${target}" in 1180 sh*-*-elf) 1181 ;; 1182 *) 1183 noconfigdirs="$noconfigdirs target-libgloss" ;; 1184 esac 1185 ;; 1186 sparc-*-sunos4*) 1187 if test x${is_cross_compiler} = xno ; then 1188 use_gnu_ld=no 1189 fi 1190 ;; 1191 tic6x-*-*) 1192 noconfigdirs="$noconfigdirs sim" 1193 ;; 1194 tilepro*-*-* | tilegx*-*-*) 1195 noconfigdirs="$noconfigdirs sim" 1196 ;; 1197 v810-*-*) 1198 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss" 1199 ;; 1200 vax-*-*) 1201 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1202 ;; 1203 wasm32-*-*) 1204 noconfigdirs="$noconfigdirs ld" 1205 ;; 1206esac 1207 1208# If we aren't building newlib, then don't build libgloss, since libgloss 1209# depends upon some newlib header files. 1210case "${noconfigdirs}" in 1211 *target-libgloss*) ;; 1212 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;; 1213esac 1214 1215# Work in distributions that contain no compiler tools, like Autoconf. 1216host_makefile_frag=/dev/null 1217if test -d ${srcdir}/config ; then 1218case "${host}" in 1219 i[[3456789]]86-*-msdosdjgpp*) 1220 host_makefile_frag="config/mh-djgpp" 1221 ;; 1222 *-cygwin*) 1223 ACX_CHECK_CYGWIN_CAT_WORKS 1224 host_makefile_frag="config/mh-cygwin" 1225 ;; 1226 *-mingw*) 1227 host_makefile_frag="config/mh-mingw" 1228 ;; 1229 alpha*-linux*) 1230 host_makefile_frag="config/mh-alpha-linux" 1231 ;; 1232 hppa*-hp-hpux10*) 1233 host_makefile_frag="config/mh-pa-hpux10" 1234 ;; 1235 hppa*-hp-hpux*) 1236 host_makefile_frag="config/mh-pa" 1237 ;; 1238 hppa*-*) 1239 host_makefile_frag="config/mh-pa" 1240 ;; 1241 *-*-darwin*) 1242 host_makefile_frag="config/mh-darwin" 1243 ;; 1244 powerpc-*-aix*) 1245 host_makefile_frag="config/mh-ppc-aix" 1246 ;; 1247 rs6000-*-aix*) 1248 host_makefile_frag="config/mh-ppc-aix" 1249 ;; 1250esac 1251fi 1252 1253if test "${build}" != "${host}" ; then 1254 AR_FOR_BUILD=${AR_FOR_BUILD-ar} 1255 AS_FOR_BUILD=${AS_FOR_BUILD-as} 1256 CC_FOR_BUILD=${CC_FOR_BUILD-gcc} 1257 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++} 1258 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran} 1259 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo} 1260 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool} 1261 LD_FOR_BUILD=${LD_FOR_BUILD-ld} 1262 NM_FOR_BUILD=${NM_FOR_BUILD-nm} 1263 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib} 1264 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres} 1265 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc} 1266else 1267 AR_FOR_BUILD="\$(AR)" 1268 AS_FOR_BUILD="\$(AS)" 1269 CC_FOR_BUILD="\$(CC)" 1270 CXX_FOR_BUILD="\$(CXX)" 1271 GFORTRAN_FOR_BUILD="\$(GFORTRAN)" 1272 GOC_FOR_BUILD="\$(GOC)" 1273 DLLTOOL_FOR_BUILD="\$(DLLTOOL)" 1274 LD_FOR_BUILD="\$(LD)" 1275 NM_FOR_BUILD="\$(NM)" 1276 RANLIB_FOR_BUILD="\$(RANLIB)" 1277 WINDRES_FOR_BUILD="\$(WINDRES)" 1278 WINDMC_FOR_BUILD="\$(WINDMC)" 1279fi 1280 1281AC_PROG_CC_C99 1282AC_PROG_CXX 1283 1284# We must set the default linker to the linker used by gcc for the correct 1285# operation of libtool. If LD is not defined and we are using gcc, try to 1286# set the LD default to the ld used by gcc. 1287if test -z "$LD"; then 1288 if test "$GCC" = yes; then 1289 case $build in 1290 *-*-mingw*) 1291 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;; 1292 *) 1293 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;; 1294 esac 1295 case $gcc_prog_ld in 1296 # Accept absolute paths. 1297 [[\\/]* | [A-Za-z]:[\\/]*)] 1298 LD="$gcc_prog_ld" ;; 1299 esac 1300 fi 1301fi 1302 1303# Check whether -static-libstdc++ -static-libgcc is supported. 1304have_static_libs=no 1305if test "$GCC" = yes; then 1306 saved_LDFLAGS="$LDFLAGS" 1307 1308 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc" 1309 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc]) 1310 AC_LANG_PUSH(C++) 1311 AC_LINK_IFELSE([AC_LANG_SOURCE([ 1312#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5) 1313#error -static-libstdc++ not implemented 1314#endif 1315int main() {}])], 1316 [AC_MSG_RESULT([yes]); have_static_libs=yes], 1317 [AC_MSG_RESULT([no])]) 1318 AC_LANG_POP(C++) 1319 1320 LDFLAGS="$saved_LDFLAGS" 1321fi 1322 1323ACX_PROG_GNAT 1324ACX_PROG_CMP_IGNORE_INITIAL 1325 1326AC_ARG_ENABLE([bootstrap], 1327[AS_HELP_STRING([--enable-bootstrap], 1328 [enable bootstrapping @<:@yes if native build@:>@])],, 1329enable_bootstrap=default) 1330 1331# Issue errors and warnings for invalid/strange bootstrap combinations. 1332if test -r $srcdir/gcc/configure; then 1333 have_compiler=yes 1334else 1335 have_compiler=no 1336fi 1337 1338case "$have_compiler:$host:$target:$enable_bootstrap" in 1339 *:*:*:no) ;; 1340 1341 # Default behavior. Enable bootstrap if we have a compiler 1342 # and we are in a native configuration. 1343 yes:$build:$build:default) 1344 enable_bootstrap=yes ;; 1345 1346 *:*:*:default) 1347 enable_bootstrap=no ;; 1348 1349 # We have a compiler and we are in a native configuration, bootstrap is ok 1350 yes:$build:$build:yes) 1351 ;; 1352 1353 # Other configurations, but we have a compiler. Assume the user knows 1354 # what he's doing. 1355 yes:*:*:yes) 1356 AC_MSG_WARN([trying to bootstrap a cross compiler]) 1357 ;; 1358 1359 # No compiler: if they passed --enable-bootstrap explicitly, fail 1360 no:*:*:yes) 1361 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;; 1362 1363 # Fail if wrong command line 1364 *) 1365 AC_MSG_ERROR([invalid option for --enable-bootstrap]) 1366 ;; 1367esac 1368 1369# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a 1370# C++98 compiler can still start the bootstrap. 1371if test "$enable_bootstrap:$GXX" = "yes:yes"; then 1372 CXX="$CXX -std=gnu++98" 1373fi 1374 1375AC_ARG_ENABLE([pgo-build], 1376[AS_HELP_STRING([--enable-pgo-build[[=lto]]], 1377 [enable the PGO build])], 1378[enable_pgo_build=$enableval], 1379[enable_pgo_build=no]) 1380 1381# Issue errors and warnings for invalid/strange PGO build combinations. 1382case "$have_compiler:$host:$target:$enable_pgo_build" in 1383 *:*:*:no) ;; 1384 1385 # Allow the PGO build only if we aren't building a compiler and 1386 # we are in a native configuration. 1387 no:$build:$build:yes | no:$build:$build:lto) ;; 1388 1389 # Disallow the PGO bootstrap if we are building a compiler. 1390 yes:*:*:yes | yes:*:*:lto) 1391 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;; 1392 1393 *) 1394 AC_MSG_ERROR([invalid option for --enable-pgo-build]) 1395 ;; 1396esac 1397 1398if test "$enable_pgo_build" != "no"; then 1399 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate]) 1400 old_CFLAGS="$CFLAGS" 1401 PGO_BUILD_GEN_CFLAGS="-fprofile-generate" 1402 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS" 1403 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],, 1404 [PGO_BUILD_GEN_CFLAGS=]) 1405 CFLAGS="$old_CFLAGS" 1406 if test -n "$PGO_BUILD_GEN_CFLAGS"; then 1407 AC_MSG_RESULT([yes]) 1408 PGO_BUILD_USE_CFLAGS="-fprofile-use" 1409 else 1410 AC_MSG_RESULT([no]) 1411 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate]) 1412 fi 1413 1414 if test "$enable_pgo_build" = "lto"; then 1415 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects]) 1416 old_CFLAGS="$CFLAGS" 1417 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects" 1418 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS" 1419 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],, 1420 [PGO_BUILD_LTO_CFLAGS=]) 1421 CFLAGS="$old_CFLAGS" 1422 if test -n "$PGO_BUILD_LTO_CFLAGS"; then 1423 AC_MSG_RESULT([yes]) 1424 else 1425 AC_MSG_RESULT([no]) 1426 AC_MSG_WARN([LTO is disabled for the PGO build]) 1427 fi 1428 fi 1429fi 1430AC_SUBST(PGO_BUILD_GEN_CFLAGS) 1431AC_SUBST(PGO_BUILD_USE_CFLAGS) 1432AC_SUBST(PGO_BUILD_LTO_CFLAGS) 1433 1434# Used for setting $lt_cv_objdir 1435_LT_CHECK_OBJDIR 1436 1437# Check for GMP, MPFR and MPC 1438gmplibs="-lmpc -lmpfr -lgmp" 1439gmpinc= 1440have_gmp=no 1441 1442# Specify a location for mpc 1443# check for this first so it ends up on the link line before mpfr. 1444AC_ARG_WITH(mpc, 1445[AS_HELP_STRING([--with-mpc=PATH], 1446 [specify prefix directory for installed MPC package. 1447 Equivalent to --with-mpc-include=PATH/include 1448 plus --with-mpc-lib=PATH/lib])]) 1449AC_ARG_WITH(mpc-include, 1450[AS_HELP_STRING([--with-mpc-include=PATH], 1451 [specify directory for installed MPC include files])]) 1452AC_ARG_WITH(mpc-lib, 1453[AS_HELP_STRING([--with-mpc-lib=PATH], 1454 [specify directory for the installed MPC library])]) 1455 1456if test "x$with_mpc" != x; then 1457 gmplibs="-L$with_mpc/lib $gmplibs" 1458 gmpinc="-I$with_mpc/include $gmpinc" 1459fi 1460if test "x$with_mpc_include" != x; then 1461 gmpinc="-I$with_mpc_include $gmpinc" 1462fi 1463if test "x$with_mpc_lib" != x; then 1464 gmplibs="-L$with_mpc_lib $gmplibs" 1465fi 1466if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then 1467 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs" 1468 gmpinc='-I$$s/mpc/src '"$gmpinc" 1469 # Do not test the mpc version. Assume that it is sufficient, since 1470 # it is in the source tree, and the library has not been built yet 1471 # but it would be included on the link line in the version check below 1472 # hence making the test fail. 1473 have_gmp=yes 1474fi 1475 1476# Specify a location for mpfr 1477# check for this first so it ends up on the link line before gmp. 1478AC_ARG_WITH(mpfr-dir, 1479[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])], 1480[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed. 1481Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])]) 1482 1483AC_ARG_WITH(mpfr, 1484[AS_HELP_STRING([--with-mpfr=PATH], 1485 [specify prefix directory for installed MPFR package. 1486 Equivalent to --with-mpfr-include=PATH/include 1487 plus --with-mpfr-lib=PATH/lib])]) 1488AC_ARG_WITH(mpfr-include, 1489[AS_HELP_STRING([--with-mpfr-include=PATH], 1490 [specify directory for installed MPFR include files])]) 1491AC_ARG_WITH(mpfr-lib, 1492[AS_HELP_STRING([--with-mpfr-lib=PATH], 1493 [specify directory for the installed MPFR library])]) 1494 1495if test "x$with_mpfr" != x; then 1496 gmplibs="-L$with_mpfr/lib $gmplibs" 1497 gmpinc="-I$with_mpfr/include $gmpinc" 1498fi 1499if test "x$with_mpfr_include" != x; then 1500 gmpinc="-I$with_mpfr_include $gmpinc" 1501fi 1502if test "x$with_mpfr_lib" != x; then 1503 gmplibs="-L$with_mpfr_lib $gmplibs" 1504fi 1505if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then 1506 # MPFR v3.1.0 moved the sources into a src sub-directory. 1507 if ! test -d ${srcdir}/mpfr/src; then 1508 AC_MSG_ERROR([dnl 1509Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.]) 1510 fi 1511 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs" 1512 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc" 1513 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir" 1514 # Do not test the mpfr version. Assume that it is sufficient, since 1515 # it is in the source tree, and the library has not been built yet 1516 # but it would be included on the link line in the version check below 1517 # hence making the test fail. 1518 have_gmp=yes 1519fi 1520 1521# Specify a location for gmp 1522AC_ARG_WITH(gmp-dir, 1523[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])], 1524[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed. 1525Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])]) 1526 1527AC_ARG_WITH(gmp, 1528[AS_HELP_STRING([--with-gmp=PATH], 1529 [specify prefix directory for the installed GMP package. 1530 Equivalent to --with-gmp-include=PATH/include 1531 plus --with-gmp-lib=PATH/lib])]) 1532AC_ARG_WITH(gmp-include, 1533[AS_HELP_STRING([--with-gmp-include=PATH], 1534 [specify directory for installed GMP include files])]) 1535AC_ARG_WITH(gmp-lib, 1536[AS_HELP_STRING([--with-gmp-lib=PATH], 1537 [specify directory for the installed GMP library])]) 1538 1539 1540if test "x$with_gmp" != x; then 1541 gmplibs="-L$with_gmp/lib $gmplibs" 1542 gmpinc="-I$with_gmp/include $gmpinc" 1543fi 1544if test "x$with_gmp_include" != x; then 1545 gmpinc="-I$with_gmp_include $gmpinc" 1546fi 1547if test "x$with_gmp_lib" != x; then 1548 gmplibs="-L$with_gmp_lib $gmplibs" 1549fi 1550if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then 1551 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs" 1552 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc" 1553 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" 1554 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" 1555 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp' 1556 # Do not test the gmp version. Assume that it is sufficient, since 1557 # it is in the source tree, and the library has not been built yet 1558 # but it would be included on the link line in the version check below 1559 # hence making the test fail. 1560 have_gmp=yes 1561fi 1562 1563if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then 1564 have_gmp=yes 1565 saved_CFLAGS="$CFLAGS" 1566 CFLAGS="$CFLAGS $gmpinc" 1567 # Check for the recommended and required versions of GMP. 1568 AC_MSG_CHECKING([for the correct version of gmp.h]) 1569 AC_TRY_COMPILE([#include "gmp.h"],[ 1570 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) 1571 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) 1572 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3) 1573 choke me 1574 #endif 1575 ], [AC_TRY_COMPILE([#include <gmp.h>],[ 1576 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) 1577 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) 1578 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2) 1579 choke me 1580 #endif 1581 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1582 [AC_MSG_RESULT([no]); have_gmp=no]) 1583 1584 # If we have GMP, check the MPFR version. 1585 if test x"$have_gmp" = xyes; then 1586 # Check for the recommended and required versions of MPFR. 1587 AC_MSG_CHECKING([for the correct version of mpfr.h]) 1588 AC_TRY_COMPILE([#include <gmp.h> 1589 #include <mpfr.h>],[ 1590 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0) 1591 choke me 1592 #endif 1593 ], [AC_TRY_COMPILE([#include <gmp.h> 1594 #include <mpfr.h>],[ 1595 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2) 1596 choke me 1597 #endif 1598 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1599 [AC_MSG_RESULT([no]); have_gmp=no]) 1600 fi 1601 1602 # Check for the MPC header version. 1603 if test x"$have_gmp" = xyes ; then 1604 # Check for the recommended and required versions of MPC. 1605 AC_MSG_CHECKING([for the correct version of mpc.h]) 1606 AC_TRY_COMPILE([#include <mpc.h>],[ 1607 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0) 1608 choke me 1609 #endif 1610 ], [AC_TRY_COMPILE([#include <mpc.h>],[ 1611 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1) 1612 choke me 1613 #endif 1614 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1615 [AC_MSG_RESULT([no]); have_gmp=no]) 1616 fi 1617 1618 # Now check the MPFR library. 1619 if test x"$have_gmp" = xyes; then 1620 saved_LIBS="$LIBS" 1621 LIBS="$LIBS $gmplibs" 1622 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries]) 1623 AC_TRY_LINK([#include <mpc.h>],[ 1624 mpfr_t n; 1625 mpfr_t x; 1626 mpc_t c; 1627 int t; 1628 mpfr_init (n); 1629 mpfr_init (x); 1630 mpfr_atan2 (n, n, x, GMP_RNDN); 1631 mpfr_erfc (n, x, GMP_RNDN); 1632 mpfr_subnormalize (x, t, GMP_RNDN); 1633 mpfr_clear(n); 1634 mpfr_clear(x); 1635 mpc_init2 (c, 53); 1636 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN); 1637 mpc_cosh (c, c, MPC_RNDNN); 1638 mpc_pow (c, c, c, MPC_RNDNN); 1639 mpc_acosh (c, c, MPC_RNDNN); 1640 mpc_clear (c); 1641 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no]) 1642 LIBS="$saved_LIBS" 1643 fi 1644 1645 CFLAGS="$saved_CFLAGS" 1646 1647# The library versions listed in the error message below should match 1648# the HARD-minimums enforced above. 1649 if test x$have_gmp != xyes; then 1650 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+. 1651Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify 1652their locations. Source code for these libraries can be found at 1653their respective hosting sites as well as at 1654ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also 1655http://gcc.gnu.org/install/prerequisites.html for additional info. If 1656you obtained GMP, MPFR and/or MPC from a vendor distribution package, 1657make sure that you have installed both the libraries and the header 1658files. They may be located in separate packages.]) 1659 fi 1660fi 1661 1662# Flags needed for both GMP, MPFR and/or MPC. 1663AC_SUBST(gmplibs) 1664AC_SUBST(gmpinc) 1665AC_SUBST(extra_mpfr_configure_flags) 1666AC_SUBST(extra_mpc_gmp_configure_flags) 1667AC_SUBST(extra_mpc_mpfr_configure_flags) 1668AC_SUBST(extra_isl_gmp_configure_flags) 1669 1670# Libraries to use for stage1 or when not bootstrapping. 1671AC_ARG_WITH(stage1-libs, 1672[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])], 1673[if test "$withval" = "no" -o "$withval" = "yes"; then 1674 stage1_libs= 1675 else 1676 stage1_libs=$withval 1677 fi], 1678[stage1_libs=]) 1679AC_SUBST(stage1_libs) 1680 1681# Whether or not to use -static-libstdc++ and -static-libgcc. The 1682# default is yes if gcc is being built; no otherwise. The reason for 1683# this default is that gdb is sometimes linked against GNU Source 1684# Highlight, which is a shared library that uses C++ exceptions. In 1685# this case, -static-libstdc++ will cause crashes. 1686AC_ARG_WITH(static-standard-libraries, 1687[AS_HELP_STRING([--with-static-standard-libraries], 1688 [use -static-libstdc++ and -static-libgcc (default=auto)])], 1689[], [with_static_standard_libraries=auto]) 1690if test "$with_static_standard_libraries" = auto; then 1691 with_static_standard_libraries=$have_compiler 1692fi 1693 1694# Linker flags to use for stage1 or when not bootstrapping. 1695AC_ARG_WITH(stage1-ldflags, 1696[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])], 1697[if test "$withval" = "no" -o "$withval" = "yes"; then 1698 stage1_ldflags= 1699 else 1700 stage1_ldflags=$withval 1701 fi], 1702[stage1_ldflags= 1703 # In stage 1, default to linking libstdc++ and libgcc statically with GCC 1704 # if supported. But if the user explicitly specified the libraries to use, 1705 # trust that they are doing what they want. 1706 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \ 1707 -a "$have_static_libs" = yes; then 1708 stage1_ldflags="-static-libstdc++ -static-libgcc" 1709 fi]) 1710AC_SUBST(stage1_ldflags) 1711 1712# Libraries to use for stage2 and later builds. 1713AC_ARG_WITH(boot-libs, 1714[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])], 1715[if test "$withval" = "no" -o "$withval" = "yes"; then 1716 poststage1_libs= 1717 else 1718 poststage1_libs=$withval 1719 fi], 1720[poststage1_libs=]) 1721AC_SUBST(poststage1_libs) 1722 1723# Linker flags to use for stage2 and later builds. 1724AC_ARG_WITH(boot-ldflags, 1725[AS_HELP_STRING([--with-boot-ldflags=FLAGS], 1726 [linker flags for stage2 and later])], 1727[if test "$withval" = "no" -o "$withval" = "yes"; then 1728 poststage1_ldflags= 1729 else 1730 poststage1_ldflags=$withval 1731 fi], 1732[poststage1_ldflags= 1733 # In stages 2 and 3, default to linking libstdc++ and libgcc 1734 # statically. But if the user explicitly specified the libraries to 1735 # use, trust that they are doing what they want. 1736 if test "$poststage1_libs" = ""; then 1737 poststage1_ldflags="-static-libstdc++ -static-libgcc" 1738 fi]) 1739AC_SUBST(poststage1_ldflags) 1740 1741# GCC GRAPHITE dependency isl. 1742# Basic setup is inlined here, actual checks are in config/isl.m4 1743 1744AC_ARG_WITH(isl, 1745 [AS_HELP_STRING( 1746 [--with-isl=PATH], 1747 [Specify prefix directory for the installed isl package. 1748 Equivalent to --with-isl-include=PATH/include 1749 plus --with-isl-lib=PATH/lib])]) 1750 1751# Treat --without-isl as a request to disable 1752# GRAPHITE support and skip all following checks. 1753if test "x$with_isl" != "xno"; then 1754 # Check for isl 1755 dnl Provide configure switches and initialize islinc & isllibs 1756 dnl with user input. 1757 ISL_INIT_FLAGS 1758 dnl The versions of isl that work for Graphite 1759 ISL_CHECK_VERSION() 1760 dnl Only execute fail-action, if isl has been requested. 1761 ISL_IF_FAILED([ 1762 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])]) 1763fi 1764 1765# If the isl check failed, disable builds of in-tree variant of isl 1766if test "x$with_isl" = xno || 1767 test "x$gcc_cv_isl" = xno; then 1768 noconfigdirs="$noconfigdirs isl" 1769 islinc= 1770fi 1771 1772AC_SUBST(isllibs) 1773AC_SUBST(islinc) 1774 1775# Check for LTO support. 1776AC_ARG_ENABLE(lto, 1777[AS_HELP_STRING([--enable-lto], [enable link time optimization support])], 1778enable_lto=$enableval, 1779enable_lto=yes; default_enable_lto=yes) 1780 1781ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always. 1782 build_lto_plugin=yes 1783],[if test x"$default_enable_lto" = x"yes" ; then 1784 case $target in 1785 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;; 1786 # On other non-ELF platforms, LTO has yet to be validated. 1787 *) enable_lto=no ;; 1788 esac 1789 else 1790 # Apart from ELF platforms, only Windows and Darwin support LTO so far. 1791 # It would also be nice to check the binutils support, but we don't 1792 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just 1793 # warn during gcc/ subconfigure; unless you're bootstrapping with 1794 # -flto it won't be needed until after installation anyway. 1795 case $target in 1796 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;; 1797 *) if test x"$enable_lto" = x"yes"; then 1798 AC_MSG_ERROR([LTO support is not enabled for this target.]) 1799 fi 1800 ;; 1801 esac 1802 fi 1803 # Among non-ELF, only Windows platforms support the lto-plugin so far. 1804 # Build it unless LTO was explicitly disabled. 1805 case $target in 1806 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;; 1807 *) ;; 1808 esac 1809]) 1810 1811AC_ARG_ENABLE(linker-plugin-configure-flags, 1812 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]], 1813 [additional flags for configuring linker plugins @<:@none@:>@])], 1814 extra_linker_plugin_configure_flags=$enableval, 1815 extra_linker_plugin_configure_flags=) 1816AC_SUBST(extra_linker_plugin_configure_flags) 1817AC_ARG_ENABLE(linker-plugin-flags, 1818 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]], 1819 [additional flags for configuring and building linker plugins @<:@none@:>@])], 1820 extra_linker_plugin_flags=$enableval, 1821 extra_linker_plugin_flags=) 1822AC_SUBST(extra_linker_plugin_flags) 1823 1824# Enable --enable-host-shared. 1825# Checked early to determine whether jit is an 'all' language 1826AC_ARG_ENABLE(host-shared, 1827[AS_HELP_STRING([--enable-host-shared], 1828 [build host code as shared libraries])], 1829[host_shared=$enableval], [host_shared=no]) 1830AC_SUBST(host_shared) 1831 1832# By default, C and C++ are the only stage 1 languages. 1833stage1_languages=,c, 1834 1835# Target libraries that we bootstrap. 1836bootstrap_target_libs=,target-libgcc, 1837 1838# Figure out what language subdirectories are present. 1839# Look if the user specified --enable-languages="..."; if not, use 1840# the environment variable $LANGUAGES if defined. $LANGUAGES might 1841# go away some day. 1842# NB: embedded tabs in this IF block -- do not untabify 1843if test -d ${srcdir}/gcc; then 1844 if test x"${enable_languages+set}" != xset; then 1845 if test x"${LANGUAGES+set}" = xset; then 1846 enable_languages="${LANGUAGES}" 1847 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2 1848 else 1849 enable_languages=default 1850 fi 1851 else 1852 if test x"${enable_languages}" = x || 1853 test x"${enable_languages}" = xyes; 1854 then 1855 echo configure.ac: --enable-languages needs at least one language argument 1>&2 1856 exit 1 1857 fi 1858 fi 1859 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'` 1860 1861 # 'f95' is the old name for the 'fortran' language. We issue a warning 1862 # and make the substitution. 1863 case ,${enable_languages}, in 1864 *,f95,*) 1865 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2 1866 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'` 1867 ;; 1868 esac 1869 1870 # If bootstrapping, C++ must be enabled. 1871 case ",$enable_languages,:$enable_bootstrap" in 1872 *,c++,*:*) ;; 1873 *:yes) 1874 if test -f ${srcdir}/gcc/cp/config-lang.in; then 1875 enable_languages="${enable_languages},c++" 1876 else 1877 AC_MSG_ERROR([bootstrapping requires c++ sources]) 1878 fi 1879 ;; 1880 esac 1881 1882 # First scan to see if an enabled language requires some other language. 1883 # We assume that a given config-lang.in will list all the language 1884 # front ends it requires, even if some are required indirectly. 1885 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do 1886 case ${lang_frag} in 1887 ..) ;; 1888 # The odd quoting in the next line works around 1889 # an apparent bug in bash 1.12 on linux. 1890 ${srcdir}/gcc/[[*]]/config-lang.in) ;; 1891 *) 1892 # From the config-lang.in, get $language, $lang_requires, and 1893 # $lang_requires_boot_languages. 1894 language= 1895 lang_requires= 1896 lang_requires_boot_languages= 1897 # set srcdir during sourcing lang_frag to the gcc dir. 1898 # Sadly overriding srcdir on the . line doesn't work in plain sh as it 1899 # polutes this shell 1900 saved_srcdir=${srcdir} 1901 srcdir=${srcdir}/gcc . ${lang_frag} 1902 srcdir=${saved_srcdir} 1903 for other in ${lang_requires} ${lang_requires_boot_languages}; do 1904 case ,${enable_languages}, in 1905 *,$other,*) ;; 1906 *,default,*) ;; 1907 *,all,*) ;; 1908 *,$language,*) 1909 echo " \`$other' language required by \`$language'; enabling" 1>&2 1910 enable_languages="${enable_languages},${other}" 1911 ;; 1912 esac 1913 done 1914 for other in ${lang_requires_boot_languages} ; do 1915 if test "$other" != "c"; then 1916 case ,${enable_stage1_languages}, in 1917 *,$other,*) ;; 1918 *,default,*) ;; 1919 *,all,*) ;; 1920 *) 1921 case ,${enable_languages}, in 1922 *,$language,*) 1923 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2 1924 enable_stage1_languages="$enable_stage1_languages,${other}" 1925 ;; 1926 esac 1927 ;; 1928 esac 1929 fi 1930 done 1931 ;; 1932 esac 1933 done 1934 1935 new_enable_languages=,c, 1936 1937 # If LTO is enabled, add the LTO front end. 1938 if test "$enable_lto" = "yes" ; then 1939 case ,${enable_languages}, in 1940 *,lto,*) ;; 1941 *) enable_languages="${enable_languages},lto" ;; 1942 esac 1943 if test "${build_lto_plugin}" = "yes" ; then 1944 configdirs="$configdirs lto-plugin" 1945 fi 1946 fi 1947 1948 # If we're building an offloading compiler, add the LTO front end. 1949 if test x"$enable_as_accelerator_for" != x ; then 1950 case ,${enable_languages}, in 1951 *,lto,*) ;; 1952 *) enable_languages="${enable_languages},lto" ;; 1953 esac 1954 fi 1955 1956 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ ` 1957 potential_languages=,c, 1958 1959 enabled_target_libs= 1960 disabled_target_libs= 1961 1962 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do 1963 case ${lang_frag} in 1964 ..) ;; 1965 # The odd quoting in the next line works around 1966 # an apparent bug in bash 1.12 on linux. 1967 ${srcdir}/gcc/[[*]]/config-lang.in) ;; 1968 *) 1969 # From the config-lang.in, get $language, $target_libs, 1970 # $lang_dirs, $boot_language, and $build_by_default 1971 language= 1972 target_libs= 1973 lang_dirs= 1974 subdir_requires= 1975 boot_language=no 1976 build_by_default=yes 1977 # set srcdir during sourcing. See above about save & restore 1978 saved_srcdir=${srcdir} 1979 srcdir=${srcdir}/gcc . ${lang_frag} 1980 srcdir=${saved_srcdir} 1981 if test x${language} = x; then 1982 echo "${lang_frag} doesn't set \$language." 1>&2 1983 exit 1 1984 fi 1985 1986 if test "$language" = "c++"; then 1987 boot_language=yes 1988 fi 1989 1990 add_this_lang=no 1991 # C is always enabled, so no need to add it again 1992 if test "$language" != "c"; then 1993 case ,${enable_languages}, in 1994 *,${language},*) 1995 # Language was explicitly selected; include it 1996 add_this_lang=yes 1997 ;; 1998 *,all,*) 1999 # All languages are enabled 2000 add_this_lang=all 2001 ;; 2002 *,default,*) 2003 # 'default' was selected, select it if it is a default language 2004 add_this_lang=${build_by_default} 2005 ;; 2006 esac 2007 fi 2008 2009 # Disable languages that need other directories if these aren't available. 2010 for i in $subdir_requires; do 2011 test -f "$srcdir/gcc/$i/config-lang.in" && continue 2012 case ${add_this_lang} in 2013 yes) 2014 # Specifically requested language; tell them. 2015 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing]) 2016 ;; 2017 all) 2018 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing]) 2019 add_this_lang=unsupported 2020 ;; 2021 *) 2022 # Silently disable. 2023 add_this_lang=unsupported 2024 ;; 2025 esac 2026 done 2027 2028 # Disable Ada if no preexisting GNAT is available. 2029 case ${add_this_lang}:${language}:${have_gnat} in 2030 yes:ada:no) 2031 # Specifically requested language; tell them. 2032 AC_MSG_ERROR([GNAT is required to build $language]) 2033 ;; 2034 all:ada:no) 2035 AC_MSG_WARN([GNAT is required to build $language]) 2036 add_this_lang=unsupported 2037 ;; 2038 *:ada:no) 2039 # Silently disable. 2040 add_this_lang=unsupported 2041 ;; 2042 esac 2043 2044 # Disable jit if -enable-host-shared not specified 2045 case ${add_this_lang}:${language}:${host_shared} in 2046 yes:jit:no) 2047 # PR jit/64780: explicitly specify --enable-host-shared 2048 AC_MSG_ERROR([ 2049Enabling language "jit" requires --enable-host-shared. 2050 2051--enable-host-shared typically slows the rest of the compiler down by 2052a few %, so you must explicitly enable it. 2053 2054If you want to build both the jit and the regular compiler, it is often 2055best to do this via two separate configure/builds, in separate 2056directories, to avoid imposing the performance cost of 2057--enable-host-shared on the regular compiler.]) 2058 ;; 2059 all:jit:no) 2060 AC_MSG_WARN([--enable-host-shared required to build $language]) 2061 add_this_lang=unsupported 2062 ;; 2063 *:jit:no) 2064 # Silently disable. 2065 add_this_lang=unsupported 2066 ;; 2067 esac 2068 2069 # Disable a language that is unsupported by the target. 2070 case "${add_this_lang}: $unsupported_languages " in 2071 no:*) ;; 2072 unsupported:*) ;; 2073 *:*" $language "*) 2074 AC_MSG_WARN([${language} not supported for this target]) 2075 add_this_lang=unsupported 2076 ;; 2077 esac 2078 2079 case $add_this_lang in 2080 unsupported) 2081 # Remove language-dependent dirs. 2082 disabled_target_libs="$disabled_target_libs $target_libs" 2083 noconfigdirs="$noconfigdirs $lang_dirs" 2084 ;; 2085 no) 2086 # Remove language-dependent dirs; still show language as supported. 2087 disabled_target_libs="$disabled_target_libs $target_libs" 2088 noconfigdirs="$noconfigdirs $lang_dirs" 2089 potential_languages="${potential_languages}${language}," 2090 ;; 2091 all|yes) 2092 new_enable_languages="${new_enable_languages}${language}," 2093 potential_languages="${potential_languages}${language}," 2094 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"` 2095 enabled_target_libs="$enabled_target_libs $target_libs" 2096 case "${boot_language}:,$enable_stage1_languages," in 2097 yes:* | *:*,$language,* | *:*,yes, | *:*,all,) 2098 # Add to (comma-separated) list of stage 1 languages. 2099 case ",$stage1_languages," in 2100 *,$language,* | ,yes, | ,all,) ;; 2101 *) stage1_languages="${stage1_languages}${language}," ;; 2102 esac 2103 # We need to bootstrap any supporting libraries. 2104 bootstrap_target_libs="${bootstrap_target_libs}${target_libs}," 2105 ;; 2106 esac 2107 ;; 2108 esac 2109 ;; 2110 esac 2111 done 2112 2113 # Add target libraries which are only needed for disabled languages 2114 # to noconfigdirs. 2115 if test -n "$disabled_target_libs"; then 2116 for dir in $disabled_target_libs; do 2117 case " $enabled_target_libs " in 2118 *" ${dir} "*) ;; 2119 *) noconfigdirs="$noconfigdirs $dir" ;; 2120 esac 2121 done 2122 fi 2123 2124 AC_ARG_ENABLE(stage1-languages, 2125 [AS_HELP_STRING([[--enable-stage1-languages[=all]]], 2126 [choose additional languages to build during 2127 stage1. Mostly useful for compiler development])], 2128 [case ,${enable_stage1_languages}, in 2129 ,no,|,,) 2130 # Set it to something that will have no effect in the loop below 2131 enable_stage1_languages=c ;; 2132 ,yes,) 2133 enable_stage1_languages=`echo $new_enable_languages | \ 2134 sed -e "s/^,//" -e "s/,$//" ` ;; 2135 *,all,*) 2136 enable_stage1_languages=`echo ,$enable_stage1_languages, | \ 2137 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;; 2138 esac 2139 2140 # Add "good" languages from enable_stage1_languages to stage1_languages, 2141 # while "bad" languages go in missing_languages. Leave no duplicates. 2142 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do 2143 case $potential_languages in 2144 *,$i,*) 2145 case $stage1_languages in 2146 *,$i,*) ;; 2147 *) stage1_languages="$stage1_languages$i," ;; 2148 esac ;; 2149 *) 2150 case $missing_languages in 2151 *,$i,*) ;; 2152 *) missing_languages="$missing_languages$i," ;; 2153 esac ;; 2154 esac 2155 done]) 2156 2157 # Remove leading/trailing commas that were added for simplicity 2158 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"` 2159 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"` 2160 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"` 2161 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"` 2162 2163 if test "x$missing_languages" != x; then 2164 AC_MSG_ERROR([ 2165The following requested languages could not be built: ${missing_languages} 2166Supported languages are: ${potential_languages}]) 2167 fi 2168 if test "x$new_enable_languages" != "x$enable_languages"; then 2169 echo The following languages will be built: ${new_enable_languages} 2170 enable_languages="$new_enable_languages" 2171 fi 2172 2173 AC_SUBST(stage1_languages) 2174 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" ` 2175fi 2176 2177# Handle --disable-<component> generically. 2178for dir in $configdirs $build_configdirs $target_configdirs ; do 2179 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g` 2180 varname=`echo $dirname | sed -e s/+/_/g` 2181 if eval test x\${enable_${varname}} "=" xno ; then 2182 noconfigdirs="$noconfigdirs $dir" 2183 fi 2184done 2185 2186# Check for Boehm's garbage collector 2187AC_ARG_ENABLE(objc-gc, 2188[AS_HELP_STRING([--enable-objc-gc], 2189 [enable use of Boehm's garbage collector with the 2190 GNU Objective-C runtime])]) 2191AC_ARG_WITH([target-bdw-gc], 2192[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST], 2193 [specify prefix directory for installed bdw-gc package. 2194 Equivalent to --with-target-bdw-gc-include=PATH/include 2195 plus --with-target-bdw-gc-lib=PATH/lib])]) 2196AC_ARG_WITH([target-bdw-gc-include], 2197[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST], 2198 [specify directories for installed bdw-gc include files])]) 2199AC_ARG_WITH([target-bdw-gc-lib], 2200[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST], 2201 [specify directories for installed bdw-gc library])]) 2202 2203case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto) 2204 AC_MSG_CHECKING([for bdw garbage collector]) 2205 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then 2206 dnl no bdw-gw options, assume default locations 2207 AC_MSG_RESULT([using bdw-gc in default locations]) 2208 else 2209 dnl bdw-gw options, first error checking, complete checking in libobjc 2210 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then 2211 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing]) 2212 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then 2213 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing]) 2214 else 2215 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options]) 2216 fi 2217 fi 2218esac 2219 2220# Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++ 2221case ,${enable_languages}, in 2222 *,c++,*) 2223 # Disable libitm, libsanitizer if we're not building libstdc++ 2224 case "${noconfigdirs}" in 2225 *target-libstdc++-v3*) 2226 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer" 2227 ;; 2228 *) ;; 2229 esac 2230 ;; 2231 *) 2232 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv" 2233 ;; 2234esac 2235 2236# Remove the entries in $skipdirs and $noconfigdirs from $configdirs, 2237# $build_configdirs and $target_configdirs. 2238# If we have the source for $noconfigdirs entries, add them to $notsupp. 2239 2240notsupp="" 2241for dir in . $skipdirs $noconfigdirs ; do 2242 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g` 2243 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2244 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"` 2245 if test -r $srcdir/$dirname/configure ; then 2246 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2247 true 2248 else 2249 notsupp="$notsupp $dir" 2250 fi 2251 fi 2252 fi 2253 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2254 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"` 2255 if test -r $srcdir/$dirname/configure ; then 2256 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2257 true 2258 else 2259 notsupp="$notsupp $dir" 2260 fi 2261 fi 2262 fi 2263 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2264 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"` 2265 if test -r $srcdir/$dirname/configure ; then 2266 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2267 true 2268 else 2269 notsupp="$notsupp $dir" 2270 fi 2271 fi 2272 fi 2273done 2274 2275# Quietly strip out all directories which aren't configurable in this tree. 2276# This relies on all configurable subdirectories being autoconfiscated, which 2277# is now the case. 2278build_configdirs_all="$build_configdirs" 2279build_configdirs= 2280for i in ${build_configdirs_all} ; do 2281 j=`echo $i | sed -e s/build-//g` 2282 if test -f ${srcdir}/$j/configure ; then 2283 build_configdirs="${build_configdirs} $i" 2284 fi 2285done 2286 2287configdirs_all="$configdirs" 2288configdirs= 2289for i in ${configdirs_all} ; do 2290 if test -f ${srcdir}/$i/configure ; then 2291 configdirs="${configdirs} $i" 2292 fi 2293done 2294 2295target_configdirs_all="$target_configdirs" 2296target_configdirs= 2297for i in ${target_configdirs_all} ; do 2298 j=`echo $i | sed -e s/target-//g` 2299 if test -f ${srcdir}/$j/configure ; then 2300 target_configdirs="${target_configdirs} $i" 2301 fi 2302done 2303 2304# libiberty-linker-plugin is special: it doesn't have its own source directory, 2305# so we have to add it after the preceding checks. 2306if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x 2307then 2308 case " $configdirs " in 2309 *" libiberty "*) 2310 # If we can build libiberty, we can also build libiberty-linker-plugin. 2311 configdirs="$configdirs libiberty-linker-plugin" 2312 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \ 2313 --with-libiberty=../libiberty-linker-plugin";; 2314 *) 2315 AC_MSG_ERROR([libiberty missing]);; 2316 esac 2317fi 2318 2319# Sometimes we have special requirements for the host libiberty. 2320extra_host_libiberty_configure_flags= 2321extra_host_zlib_configure_flags= 2322case " $configdirs " in 2323 *" lto-plugin "* | *" libcc1 "*) 2324 # When these are to be built as shared libraries, the same applies to 2325 # libiberty. 2326 extra_host_libiberty_configure_flags=--enable-shared 2327 ;; 2328 *" bfd "*) 2329 # When bfd is to be built as a shared library, the same applies to 2330 # zlib. 2331 if test "$enable_shared" = "yes"; then 2332 extra_host_zlib_configure_flags=--enable-host-shared 2333 fi 2334 ;; 2335esac 2336AC_SUBST(extra_host_libiberty_configure_flags) 2337AC_SUBST(extra_host_zlib_configure_flags) 2338 2339# Produce a warning message for the subdirs we can't configure. 2340# This isn't especially interesting in the Cygnus tree, but in the individual 2341# FSF releases, it's important to let people know when their machine isn't 2342# supported by the one or two programs in a package. 2343 2344if test -n "${notsupp}" && test -z "${norecursion}" ; then 2345 # If $appdirs is non-empty, at least one of those directories must still 2346 # be configured, or we error out. (E.g., if the gas release supports a 2347 # specified target in some subdirs but not the gas subdir, we shouldn't 2348 # pretend that all is well.) 2349 if test -n "$appdirs" ; then 2350 for dir in $appdirs ; do 2351 if test -r $dir/Makefile.in ; then 2352 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2353 appdirs="" 2354 break 2355 fi 2356 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then 2357 appdirs="" 2358 break 2359 fi 2360 fi 2361 done 2362 if test -n "$appdirs" ; then 2363 echo "*** This configuration is not supported by this package." 1>&2 2364 exit 1 2365 fi 2366 fi 2367 # Okay, some application will build, or we don't care to check. Still 2368 # notify of subdirs not getting built. 2369 echo "*** This configuration is not supported in the following subdirectories:" 1>&2 2370 echo " ${notsupp}" 1>&2 2371 echo " (Any other directories should still work fine.)" 1>&2 2372fi 2373 2374case "$host" in 2375 *msdosdjgpp*) 2376 enable_gdbtk=no ;; 2377esac 2378 2379# To find our prefix, in gcc_cv_tool_prefix. 2380ACX_TOOL_DIRS 2381 2382copy_dirs= 2383 2384AC_ARG_WITH([build-sysroot], 2385 [AS_HELP_STRING([--with-build-sysroot=SYSROOT], 2386 [use sysroot as the system root during the build])], 2387 [if test x"$withval" != x ; then 2388 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval" 2389 fi], 2390 [SYSROOT_CFLAGS_FOR_TARGET=]) 2391AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET) 2392 2393AC_ARG_WITH([debug-prefix-map], 2394 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'], 2395 [map A to B, C to D ... in debug information])], 2396 [if test x"$withval" != x; then 2397 DEBUG_PREFIX_CFLAGS_FOR_TARGET= 2398 for debug_map in $withval; do 2399 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map" 2400 done 2401 fi], 2402 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=]) 2403AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET) 2404 2405# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS 2406# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS 2407# might also be empty (or "-g", if a non-GCC C++ compiler is in the path). 2408# We want to ensure that TARGET libraries (which we know are built with 2409# gcc) are built with "-O2 -g", so include those options when setting 2410# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET. 2411if test "x$CFLAGS_FOR_TARGET" = x; then 2412 if test "x${is_cross_compiler}" = xyes; then 2413 CFLAGS_FOR_TARGET="-g -O2" 2414 else 2415 CFLAGS_FOR_TARGET=$CFLAGS 2416 case " $CFLAGS " in 2417 *" -O2 "*) ;; 2418 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;; 2419 esac 2420 case " $CFLAGS " in 2421 *" -g "* | *" -g3 "*) ;; 2422 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;; 2423 esac 2424 fi 2425fi 2426AC_SUBST(CFLAGS_FOR_TARGET) 2427 2428if test "x$CXXFLAGS_FOR_TARGET" = x; then 2429 if test "x${is_cross_compiler}" = xyes; then 2430 CXXFLAGS_FOR_TARGET="-g -O2" 2431 else 2432 CXXFLAGS_FOR_TARGET=$CXXFLAGS 2433 case " $CXXFLAGS " in 2434 *" -O2 "*) ;; 2435 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;; 2436 esac 2437 case " $CXXFLAGS " in 2438 *" -g "* | *" -g3 "*) ;; 2439 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;; 2440 esac 2441 fi 2442fi 2443AC_SUBST(CXXFLAGS_FOR_TARGET) 2444 2445AC_SUBST(LDFLAGS_FOR_TARGET) 2446 2447# Handle --with-headers=XXX. If the value is not "yes", the contents of 2448# the named directory are copied to $(tooldir)/sys-include. 2449if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then 2450 if test x${is_cross_compiler} = xno ; then 2451 echo 1>&2 '***' --with-headers is only supported when cross compiling 2452 exit 1 2453 fi 2454 if test x"${with_headers}" != xyes ; then 2455 x=${gcc_cv_tool_prefix} 2456 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include" 2457 fi 2458fi 2459 2460# Handle --with-libs=XXX. If the value is not "yes", the contents of 2461# the name directories are copied to $(tooldir)/lib. Multiple directories 2462# are permitted. 2463if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then 2464 if test x${is_cross_compiler} = xno ; then 2465 echo 1>&2 '***' --with-libs is only supported when cross compiling 2466 exit 1 2467 fi 2468 if test x"${with_libs}" != xyes ; then 2469 # Copy the libraries in reverse order, so that files in the first named 2470 # library override files in subsequent libraries. 2471 x=${gcc_cv_tool_prefix} 2472 for l in ${with_libs}; do 2473 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}" 2474 done 2475 fi 2476fi 2477 2478# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate. 2479# 2480# This is done by determining whether or not the appropriate directory 2481# is available, and by checking whether or not specific configurations 2482# have requested that this magic not happen. 2483# 2484# The command line options always override the explicit settings in 2485# configure.ac, and the settings in configure.ac override this magic. 2486# 2487# If the default for a toolchain is to use GNU as and ld, and you don't 2488# want to do that, then you should use the --without-gnu-as and 2489# --without-gnu-ld options for the configure script. Similarly, if 2490# the default is to use the included zlib and you don't want to do that, 2491# you should use the --with-system-zlib option for the configure script. 2492 2493if test x${use_gnu_as} = x && 2494 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then 2495 with_gnu_as=yes 2496 extra_host_args="$extra_host_args --with-gnu-as" 2497fi 2498 2499if test x${use_gnu_ld} = x && 2500 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then 2501 with_gnu_ld=yes 2502 extra_host_args="$extra_host_args --with-gnu-ld" 2503fi 2504 2505if test x${use_included_zlib} = x && 2506 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then 2507 : 2508else 2509 with_system_zlib=yes 2510 extra_host_args="$extra_host_args --with-system-zlib" 2511fi 2512 2513# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure 2514# can detect this case. 2515 2516if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then 2517 with_newlib=yes 2518 extra_host_args="$extra_host_args --with-newlib" 2519fi 2520 2521# Handle ${copy_dirs} 2522set fnord ${copy_dirs} 2523shift 2524while test $# != 0 ; do 2525 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then 2526 : 2527 else 2528 echo Copying $1 to $2 2529 2530 # Use the install script to create the directory and all required 2531 # parent directories. 2532 if test -d $2 ; then 2533 : 2534 else 2535 echo >config.temp 2536 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED 2537 fi 2538 2539 # Copy the directory, assuming we have tar. 2540 # FIXME: Should we use B in the second tar? Not all systems support it. 2541 (cd $1; tar -cf - .) | (cd $2; tar -xpf -) 2542 2543 # It is the responsibility of the user to correctly adjust all 2544 # symlinks. If somebody can figure out how to handle them correctly 2545 # here, feel free to add the code. 2546 2547 echo $1 > $2/COPIED 2548 fi 2549 shift; shift 2550done 2551 2552# Determine a target-dependent exec_prefix that the installed 2553# gcc will search in. Keep this list sorted by triplet, with 2554# the *-*-osname triplets last. 2555md_exec_prefix= 2556case "${target}" in 2557 i[[34567]]86-pc-msdosdjgpp*) 2558 md_exec_prefix=/dev/env/DJDIR/bin 2559 ;; 2560 *-*-hpux* | \ 2561 *-*-nto-qnx* | \ 2562 *-*-solaris2*) 2563 md_exec_prefix=/usr/ccs/bin 2564 ;; 2565esac 2566 2567extra_arflags_for_target= 2568extra_nmflags_for_target= 2569extra_ranlibflags_for_target= 2570target_makefile_frag=/dev/null 2571case "${target}" in 2572 spu-*-*) 2573 target_makefile_frag="config/mt-spu" 2574 ;; 2575 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) 2576 target_makefile_frag="config/mt-sde" 2577 ;; 2578 mipsisa*-*-elfoabi*) 2579 target_makefile_frag="config/mt-mips-elfoabi" 2580 ;; 2581 mips*-*-*linux* | mips*-*-gnu*) 2582 target_makefile_frag="config/mt-mips-gnu" 2583 ;; 2584 nios2-*-elf*) 2585 target_makefile_frag="config/mt-nios2-elf" 2586 ;; 2587 *-*-linux-android*) 2588 target_makefile_frag="config/mt-android" 2589 ;; 2590 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 2591 target_makefile_frag="config/mt-gnu" 2592 ;; 2593 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*) 2594 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm 2595 # commands to handle both 32-bit and 64-bit objects. These flags are 2596 # harmless if we're using GNU nm or ar. 2597 extra_arflags_for_target=" -X32_64" 2598 extra_nmflags_for_target=" -B -X32_64" 2599 ;; 2600esac 2601 2602alphaieee_frag=/dev/null 2603case $target in 2604 alpha*-*-*) 2605 # This just makes sure to use the -mieee option to build target libs. 2606 # This should probably be set individually by each library. 2607 alphaieee_frag="config/mt-alphaieee" 2608 ;; 2609esac 2610 2611# If --enable-target-optspace always use -Os instead of -O2 to build 2612# the target libraries, similarly if it is not specified, use -Os 2613# on selected platforms. 2614ospace_frag=/dev/null 2615case "${enable_target_optspace}:${target}" in 2616 yes:*) 2617 ospace_frag="config/mt-ospace" 2618 ;; 2619 :d30v-*) 2620 ospace_frag="config/mt-d30v" 2621 ;; 2622 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu) 2623 ospace_frag="config/mt-ospace" 2624 ;; 2625 no:* | :*) 2626 ;; 2627 *) 2628 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2 2629 ;; 2630esac 2631 2632# Some systems (e.g., one of the i386-aix systems the gas testers are 2633# using) don't handle "\$" correctly, so don't use it here. 2634tooldir='${exec_prefix}'/${target_noncanonical} 2635build_tooldir=${tooldir} 2636 2637# Create a .gdbinit file which runs the one in srcdir 2638# and tells GDB to look there for source files. 2639 2640if test -r ${srcdir}/.gdbinit ; then 2641 case ${srcdir} in 2642 .) ;; 2643 *) cat > ./.gdbinit <<EOF 2644# ${NO_EDIT} 2645dir ${srcdir} 2646dir . 2647source ${srcdir}/.gdbinit 2648EOF 2649 ;; 2650 esac 2651fi 2652 2653# Make sure that the compiler is able to generate an executable. If it 2654# can't, we are probably in trouble. We don't care whether we can run the 2655# executable--we might be using a cross compiler--we only care whether it 2656# can be created. At this point the main configure script has set CC. 2657we_are_ok=no 2658echo "int main () { return 0; }" > conftest.c 2659${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c 2660if test $? = 0 ; then 2661 if test -s conftest || test -s conftest.exe ; then 2662 we_are_ok=yes 2663 fi 2664fi 2665case $we_are_ok in 2666 no) 2667 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed." 2668 echo 1>&2 "*** You must set the environment variable CC to a working compiler." 2669 rm -f conftest* 2670 exit 1 2671 ;; 2672esac 2673rm -f conftest* 2674 2675# Decide which environment variable is used to find dynamic libraries. 2676case "${host}" in 2677 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;; 2678 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;; 2679 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;; 2680 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;; 2681esac 2682 2683# On systems where the dynamic library environment variable is PATH, 2684# gcc/ will put dynamic libraries into a subdirectory to avoid adding 2685# built executables to PATH. 2686if test "$RPATH_ENVVAR" = PATH; then 2687 GCC_SHLIB_SUBDIR=/shlib 2688else 2689 GCC_SHLIB_SUBDIR= 2690fi 2691 2692# Adjust the toplevel makefile according to whether bootstrap was selected. 2693case $enable_bootstrap in 2694 yes) 2695 bootstrap_suffix=bootstrap 2696 BUILD_CONFIG=bootstrap-debug 2697 ;; 2698 no) 2699 bootstrap_suffix=no-bootstrap 2700 BUILD_CONFIG= 2701 ;; 2702esac 2703 2704AC_MSG_CHECKING(for default BUILD_CONFIG) 2705 2706AC_ARG_WITH([build-config], 2707 [AS_HELP_STRING([--with-build-config='NAME NAME2...'], 2708 [use config/NAME.mk build configuration])], 2709 [case $with_build_config in 2710 yes) with_build_config= ;; 2711 no) with_build_config= BUILD_CONFIG= ;; 2712 esac]) 2713 2714if test "x${with_build_config}" != x; then 2715 BUILD_CONFIG=$with_build_config 2716else 2717 case $BUILD_CONFIG in 2718 bootstrap-debug) 2719 if echo "int f (void) { return 0; }" > conftest.c && 2720 ${CC} -c conftest.c && 2721 mv conftest.o conftest.o.g0 && 2722 ${CC} -c -g conftest.c && 2723 mv conftest.o conftest.o.g && 2724 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then 2725 : 2726 else 2727 BUILD_CONFIG= 2728 fi 2729 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g 2730 ;; 2731 esac 2732fi 2733AC_MSG_RESULT($BUILD_CONFIG) 2734AC_SUBST(BUILD_CONFIG) 2735 2736# Use same top-level configure hooks in libgcc/libstdc++/libvtv. 2737AC_MSG_CHECKING([for --enable-vtable-verify]) 2738AC_ARG_ENABLE(vtable-verify, 2739[AS_HELP_STRING([--enable-vtable-verify], 2740 [Enable vtable verification feature])], 2741[case "$enableval" in 2742 yes) enable_vtable_verify=yes ;; 2743 no) enable_vtable_verify=no ;; 2744 *) enable_vtable_verify=no;; 2745 esac], 2746[enable_vtable_verify=no]) 2747AC_MSG_RESULT($enable_vtable_verify) 2748 2749# Record target_configdirs and the configure arguments for target and 2750# build configuration in Makefile. 2751target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'` 2752build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'` 2753bootstrap_fixincludes=no 2754 2755# If we are building libgomp, bootstrap it. 2756if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then 2757 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp, 2758fi 2759 2760# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan 2761# or bootstrap-ubsan, bootstrap it. 2762if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then 2763 case "$BUILD_CONFIG" in 2764 *bootstrap-asan* | *bootstrap-ubsan* ) 2765 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer, 2766 bootstrap_fixincludes=yes 2767 ;; 2768 esac 2769fi 2770 2771# If we are building libvtv and --enable-vtable-verify, bootstrap it. 2772if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 && 2773 test "$enable_vtable_verify" != no; then 2774 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv, 2775fi 2776 2777# Determine whether gdb needs tk/tcl or not. 2778# Use 'maybe' since enable_gdbtk might be true even if tk isn't available 2779# and in that case we want gdb to be built without tk. Ugh! 2780# In fact I believe gdb is the *only* package directly dependent on tk, 2781# so we should be able to put the 'maybe's in unconditionally and 2782# leave out the maybe dependencies when enable_gdbtk is false. I'm not 2783# 100% sure that that's safe though. 2784 2785gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui" 2786case "$enable_gdbtk" in 2787 no) 2788 GDB_TK="" ;; 2789 yes) 2790 GDB_TK="${gdb_tk}" ;; 2791 *) 2792 # Only add the dependency on gdbtk when GDBtk is part of the gdb 2793 # distro. Eventually someone will fix this and move Insight, nee 2794 # gdbtk to a separate directory. 2795 if test -d ${srcdir}/gdb/gdbtk ; then 2796 GDB_TK="${gdb_tk}" 2797 else 2798 GDB_TK="" 2799 fi 2800 ;; 2801esac 2802CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g` 2803INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g` 2804 2805# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing 2806# else does, only include them if one of these is built. The Makefile 2807# provides the ordering, so it's enough here to add to the list. 2808case " ${configdirs} " in 2809 *\ gdb\ *) 2810 configdirs="${configdirs} gnulib gdbsupport" 2811 ;; 2812 *\ gdbserver\ *) 2813 configdirs="${configdirs} gnulib gdbsupport" 2814 ;; 2815 *\ sim\ *) 2816 configdirs="${configdirs} gnulib" 2817 ;; 2818esac 2819 2820# Strip out unwanted targets. 2821 2822# While at that, we remove Makefiles if we were started for recursive 2823# configuration, so that the top-level Makefile reconfigures them, 2824# like we used to do when configure itself was recursive. 2825 2826# Loop over modules. We used to use the "$extrasub" feature from Autoconf 2827# but now we're fixing up the Makefile ourselves with the additional 2828# commands passed to AC_CONFIG_FILES. Use separate variables 2829# extrasub-{build,host,target} not because there is any reason to split 2830# the substitutions up that way, but only to remain below the limit of 2831# 99 commands in a script, for HP-UX sed. 2832 2833# Do not nest @if/@endif or @unless/@endunless pairs, because 2834# configure will not warn you at all. 2835 2836case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in 2837 yes:yes:*\ gold\ *:*,c++,*) ;; 2838 yes:yes:*\ gold\ *:*) 2839 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages]) 2840 ;; 2841esac 2842 2843extrasub_build= 2844for module in ${build_configdirs} ; do 2845 if test -z "${no_recursion}" \ 2846 && test -f ${build_subdir}/${module}/Makefile; then 2847 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure" 2848 rm -f ${build_subdir}/${module}/Makefile 2849 fi 2850 extrasub_build="$extrasub_build 2851/^@if build-$module\$/d 2852/^@endif build-$module\$/d 2853/^@unless build-$module\$/,/^@endunless build-$module\$/d 2854/^@if build-$module-$bootstrap_suffix\$/d 2855/^@endif build-$module-$bootstrap_suffix\$/d 2856/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d" 2857done 2858extrasub_host= 2859for module in ${configdirs} ; do 2860 if test -z "${no_recursion}"; then 2861 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do 2862 if test -f ${file}; then 2863 echo 1>&2 "*** removing ${file} to force reconfigure" 2864 rm -f ${file} 2865 fi 2866 done 2867 fi 2868 case ${module},${bootstrap_fixincludes} in 2869 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;; 2870 *) host_bootstrap_suffix=$bootstrap_suffix ;; 2871 esac 2872 extrasub_host="$extrasub_host 2873/^@if $module\$/d 2874/^@endif $module\$/d 2875/^@unless $module\$/,/^@endunless $module\$/d 2876/^@if $module-$host_bootstrap_suffix\$/d 2877/^@endif $module-$host_bootstrap_suffix\$/d 2878/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d" 2879done 2880extrasub_target= 2881for module in ${target_configdirs} ; do 2882 if test -z "${no_recursion}" \ 2883 && test -f ${target_subdir}/${module}/Makefile; then 2884 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure" 2885 rm -f ${target_subdir}/${module}/Makefile 2886 fi 2887 2888 # We only bootstrap target libraries listed in bootstrap_target_libs. 2889 case $bootstrap_target_libs in 2890 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;; 2891 *) target_bootstrap_suffix=no-bootstrap ;; 2892 esac 2893 2894 extrasub_target="$extrasub_target 2895/^@if target-$module\$/d 2896/^@endif target-$module\$/d 2897/^@unless target-$module\$/,/^@endunless target-$module\$/d 2898/^@if target-$module-$target_bootstrap_suffix\$/d 2899/^@endif target-$module-$target_bootstrap_suffix\$/d 2900/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d" 2901done 2902 2903# Do the final fixup along with target modules. 2904extrasub_target="$extrasub_target 2905/^@if /,/^@endif /d 2906/^@unless /d 2907/^@endunless /d" 2908 2909if test "$enable_pgo_build" != "no"; then 2910 extrasub_build="$extrasub_build 2911/^@if pgo-build\$/d 2912/^@endif pgo-build\$/d" 2913fi 2914 2915# Create the serialization dependencies. This uses a temporary file. 2916 2917AC_ARG_ENABLE([serial-configure], 2918[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]], 2919 [force sequential configuration of 2920 sub-packages for the host, target or build 2921 machine, or all sub-packages])]) 2922 2923case ${enable_serial_configure} in 2924 yes) 2925 enable_serial_build_configure=yes 2926 enable_serial_host_configure=yes 2927 enable_serial_target_configure=yes 2928 ;; 2929esac 2930 2931# These force 'configure's to be done one at a time, to avoid problems 2932# with contention over a shared config.cache. 2933rm -f serdep.tmp 2934echo '# serdep.tmp' > serdep.tmp 2935olditem= 2936test "x${enable_serial_build_configure}" = xyes && 2937for item in ${build_configdirs} ; do 2938 case ${olditem} in 2939 "") ;; 2940 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;; 2941 esac 2942 olditem=${item} 2943done 2944olditem= 2945test "x${enable_serial_host_configure}" = xyes && 2946for item in ${configdirs} ; do 2947 case ${olditem} in 2948 "") ;; 2949 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;; 2950 esac 2951 olditem=${item} 2952done 2953olditem= 2954test "x${enable_serial_target_configure}" = xyes && 2955for item in ${target_configdirs} ; do 2956 case ${olditem} in 2957 "") ;; 2958 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;; 2959 esac 2960 olditem=${item} 2961done 2962serialization_dependencies=serdep.tmp 2963AC_SUBST_FILE(serialization_dependencies) 2964 2965# Base args. Strip norecursion, cache-file, srcdir, host, build, 2966# target, nonopt, and variable assignments. These are the ones we 2967# might not want to pass down to subconfigures. The exception being 2968# --cache-file=/dev/null, which is used to turn off the use of cache 2969# files altogether, and which should be passed on to subconfigures. 2970# Also strip program-prefix, program-suffix, and program-transform-name, 2971# so that we can pass down a consistent program-transform-name. 2972baseargs= 2973tbaseargs= 2974keep_next=no 2975skip_next=no 2976eval "set -- $ac_configure_args" 2977for ac_arg 2978do 2979 if test X"$skip_next" = X"yes"; then 2980 skip_next=no 2981 continue 2982 fi 2983 if test X"$keep_next" = X"yes"; then 2984 case $ac_arg in 2985 *\'*) 2986 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 2987 esac 2988 baseargs="$baseargs '$ac_arg'" 2989 tbaseargs="$tbaseargs '$ac_arg'" 2990 keep_next=no 2991 continue 2992 fi 2993 2994 # Handle separated arguments. Based on the logic generated by 2995 # autoconf 2.59. 2996 case $ac_arg in 2997 *=* | --config-cache | -C | -disable-* | --disable-* \ 2998 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ 2999 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ 3000 | -with-* | --with-* | -without-* | --without-* | --x) 3001 separate_arg=no 3002 ;; 3003 -*) 3004 separate_arg=yes 3005 ;; 3006 *) 3007 separate_arg=no 3008 ;; 3009 esac 3010 3011 skip_targ=no 3012 case $ac_arg in 3013changequote(,) 3014 --with-* | --without-*) 3015 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'` 3016 3017 case $libopt in 3018 *[-_]include) 3019 lib=`echo "$libopt" | sed 's,[-_]include$,,'` 3020 ;; 3021 *[-_]lib) 3022 lib=`echo "$libopt" | sed 's,[-_]lib$,,'` 3023 ;; 3024 *) 3025 lib=$libopt 3026 ;; 3027 esac 3028changequote([,]) 3029 3030 case $lib in 3031 mpc | mpfr | gmp | isl) 3032 # If we're processing --with-$lib, --with-$lib-include or 3033 # --with-$lib-lib, for one of the libs above, and target is 3034 # different from host, don't pass the current argument to any 3035 # target library's configure. 3036 if test x$is_cross_compiler = xyes; then 3037 skip_targ=yes 3038 fi 3039 ;; 3040 esac 3041 ;; 3042 esac 3043 3044 case "$ac_arg" in 3045 --cache-file=/dev/null | \ 3046 -cache-file=/dev/null ) 3047 # Handled here to avoid the test to skip args below. 3048 baseargs="$baseargs '$ac_arg'" 3049 tbaseargs="$tbaseargs '$ac_arg'" 3050 # Assert: $separate_arg should always be no. 3051 keep_next=$separate_arg 3052 ;; 3053 --no*) 3054 continue 3055 ;; 3056 --c* | \ 3057 --sr* | \ 3058 --ho* | \ 3059 --bu* | \ 3060 --t* | \ 3061 --program-* | \ 3062 -cache_file* | \ 3063 -srcdir* | \ 3064 -host* | \ 3065 -build* | \ 3066 -target* | \ 3067 -program-prefix* | \ 3068 -program-suffix* | \ 3069 -program-transform-name* ) 3070 skip_next=$separate_arg 3071 continue 3072 ;; 3073 -*) 3074 # An option. Add it. 3075 case $ac_arg in 3076 *\'*) 3077 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 3078 esac 3079 baseargs="$baseargs '$ac_arg'" 3080 if test X"$skip_targ" = Xno; then 3081 tbaseargs="$tbaseargs '$ac_arg'" 3082 fi 3083 keep_next=$separate_arg 3084 ;; 3085 *) 3086 # Either a variable assignment, or a nonopt (triplet). Don't 3087 # pass it down; let the Makefile handle this. 3088 continue 3089 ;; 3090 esac 3091done 3092# Remove the initial space we just introduced and, as these will be 3093# expanded by make, quote '$'. 3094baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'` 3095 3096# Add in --program-transform-name, after --program-prefix and 3097# --program-suffix have been applied to it. Autoconf has already 3098# doubled dollar signs and backslashes in program_transform_name; we want 3099# the backslashes un-doubled, and then the entire thing wrapped in single 3100# quotes, because this will be expanded first by make and then by the shell. 3101# Also, because we want to override the logic in subdir configure scripts to 3102# choose program_transform_name, replace any s,x,x, with s,y,y,. 3103sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out 3104${program_transform_name} 3105EOF_SED 3106gcc_transform_name=`cat conftestsed.out` 3107rm -f conftestsed.out 3108baseargs="$baseargs --program-transform-name='${gcc_transform_name}'" 3109tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'" 3110if test "$silent" = yes; then 3111 baseargs="$baseargs --silent" 3112 tbaseargs="$tbaseargs --silent" 3113fi 3114baseargs="$baseargs --disable-option-checking" 3115tbaseargs="$tbaseargs --disable-option-checking" 3116 3117# Record and document user additions to sub configure arguments. 3118AC_ARG_VAR([build_configargs], 3119 [additional configure arguments for build directories]) 3120AC_ARG_VAR([host_configargs], 3121 [additional configure arguments for host directories]) 3122AC_ARG_VAR([target_configargs], 3123 [additional configure arguments for target directories]) 3124 3125# For the build-side libraries, we just need to pretend we're native, 3126# and not use the same cache file. Multilibs are neither needed nor 3127# desired. We can't even use the same cache file for all build-side 3128# libraries, as they're compiled differently; some with C, some with 3129# C++ or with different feature-enabling options. 3130build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}" 3131 3132# For host modules, accept cache file option, or specification as blank. 3133case "${cache_file}" in 3134"") # empty 3135 cache_file_option="" ;; 3136/* | [[A-Za-z]]:[[\\/]]* ) # absolute path 3137 cache_file_option="--cache-file=${cache_file}" ;; 3138*) # relative path 3139 cache_file_option="--cache-file=../${cache_file}" ;; 3140esac 3141 3142# Host dirs don't like to share a cache file either, horribly enough. 3143# This seems to be due to autoconf 2.5x stupidity. 3144host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}" 3145 3146target_configargs="$target_configargs ${tbaseargs}" 3147 3148# Passing a --with-cross-host argument lets the target libraries know 3149# whether they are being built with a cross-compiler or being built 3150# native. However, it would be better to use other mechanisms to make the 3151# sorts of decisions they want to make on this basis. Please consider 3152# this option to be deprecated. FIXME. 3153if test x${is_cross_compiler} = xyes ; then 3154 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}" 3155fi 3156 3157# Special user-friendly check for native x86_64-linux build, if 3158# multilib is not explicitly enabled. 3159case "$target:$have_compiler:$host:$target:$enable_multilib" in 3160 x86_64-*linux*:yes:$build:$build:) 3161 # Make sure we have a development environment that handles 32-bit 3162 dev64=no 3163 echo "int main () { return 0; }" > conftest.c 3164 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c 3165 if test $? = 0 ; then 3166 if test -s conftest || test -s conftest.exe ; then 3167 dev64=yes 3168 fi 3169 fi 3170 rm -f conftest* 3171 if test x${dev64} != xyes ; then 3172 AC_MSG_ERROR([I suspect your system does not have 32-bit development libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib.]) 3173 fi 3174 ;; 3175esac 3176 3177# Default to --enable-multilib. 3178if test x${enable_multilib} = x ; then 3179 target_configargs="--enable-multilib ${target_configargs}" 3180fi 3181 3182# Pass --with-newlib if appropriate. Note that target_configdirs has 3183# changed from the earlier setting of with_newlib. 3184if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then 3185 target_configargs="--with-newlib ${target_configargs}" 3186fi 3187 3188# Different target subdirs use different values of certain variables 3189# (notably CXX). Worse, multilibs use *lots* of different values. 3190# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that 3191# it doesn't automatically accept command-line overrides of them. 3192# This means it's not safe for target subdirs to share a cache file, 3193# which is disgusting, but there you have it. Hopefully this can be 3194# fixed in future. It's still worthwhile to use a cache file for each 3195# directory. I think. 3196 3197# Pass the appropriate --build, --host, --target and --cache-file arguments. 3198# We need to pass --target, as newer autoconf's requires consistency 3199# for target_alias and gcc doesn't manage it consistently. 3200target_configargs="--cache-file=./config.cache ${target_configargs}" 3201 3202FLAGS_FOR_TARGET= 3203case " $target_configdirs " in 3204 *" newlib "*) 3205 case " $target_configargs " in 3206 *" --with-newlib "*) 3207 case "$target" in 3208 *-cygwin*) 3209 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include' 3210 ;; 3211 esac 3212 3213 # If we're not building GCC, don't discard standard headers. 3214 if test -d ${srcdir}/gcc; then 3215 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc' 3216 3217 if test "${build}" != "${host}"; then 3218 # On Canadian crosses, CC_FOR_TARGET will have already been set 3219 # by `configure', so we won't have an opportunity to add -Bgcc/ 3220 # to it. This is right: we don't want to search that directory 3221 # for binaries, but we want the header files in there, so add 3222 # them explicitly. 3223 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed' 3224 3225 # Someone might think of using the pre-installed headers on 3226 # Canadian crosses, in case the installed compiler is not fully 3227 # compatible with the compiler being built. In this case, it 3228 # would be better to flag an error than risking having 3229 # incompatible object files being constructed. We can't 3230 # guarantee that an error will be flagged, but let's hope the 3231 # compiler will do it, when presented with incompatible header 3232 # files. 3233 fi 3234 fi 3235 3236 case "${target}-${is_cross_compiler}" in 3237 i[[3456789]]86-*-linux*-no) 3238 # Here host == target, so we don't need to build gcc, 3239 # so we don't want to discard standard headers. 3240 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'` 3241 ;; 3242 *) 3243 # If we're building newlib, use its generic headers last, but search 3244 # for any libc-related directories first (so make it the last -B 3245 # switch). 3246 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include' 3247 3248 # If we're building libgloss, find the startup file, simulator library 3249 # and linker script. 3250 case " $target_configdirs " in 3251 *" libgloss "*) 3252 # Look for startup file, simulator library and maybe linker script. 3253 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir" 3254 # Look for libnosys.a in case the target needs it. 3255 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys' 3256 # Most targets have the linker script in the source directory. 3257 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir" 3258 ;; 3259 esac 3260 ;; 3261 esac 3262 ;; 3263 esac 3264 ;; 3265esac 3266 3267case "$target" in 3268 x86_64-*mingw* | *-w64-mingw*) 3269 # MinGW-w64 does not use newlib, nor does it use winsup. It may, 3270 # however, use a symlink named 'mingw' in ${prefix} . 3271 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include' 3272 ;; 3273 *-mingw*) 3274 # MinGW can't be handled as Cygwin above since it does not use newlib. 3275 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' 3276 ;; 3277esac 3278 3279# Allow the user to override the flags for 3280# our build compiler if desired. 3281if test x"${build}" = x"${host}" ; then 3282 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}} 3283 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}} 3284 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}} 3285fi 3286 3287# On Canadian crosses, we'll be searching the right directories for 3288# the previously-installed cross compiler, so don't bother to add 3289# flags for directories within the install tree of the compiler 3290# being built; programs in there won't even run. 3291if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then 3292 # Search for pre-installed headers if nothing else fits. 3293 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include' 3294fi 3295 3296if test "x${use_gnu_ld}" = x && 3297 echo " ${configdirs} " | grep " ld " > /dev/null ; then 3298 # Arrange for us to find uninstalled linker scripts. 3299 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld' 3300fi 3301 3302# Search for other target-specific linker scripts and such. 3303case "${target}" in 3304 mep*) 3305 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary" 3306 ;; 3307esac 3308 3309# Makefile fragments. 3310for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag; 3311do 3312 eval fragval=\$$frag 3313 if test $fragval != /dev/null; then 3314 eval $frag=${srcdir}/$fragval 3315 fi 3316done 3317AC_SUBST_FILE(host_makefile_frag) 3318AC_SUBST_FILE(target_makefile_frag) 3319AC_SUBST_FILE(alphaieee_frag) 3320AC_SUBST_FILE(ospace_frag) 3321 3322# Miscellanea: directories, flags, etc. 3323AC_SUBST(RPATH_ENVVAR) 3324AC_SUBST(GCC_SHLIB_SUBDIR) 3325AC_SUBST(tooldir) 3326AC_SUBST(build_tooldir) 3327AC_SUBST(CONFIGURE_GDB_TK) 3328AC_SUBST(GDB_TK) 3329AC_SUBST(INSTALL_GDB_TK) 3330 3331# Build module lists & subconfigure args. 3332AC_SUBST(build_configargs) 3333AC_SUBST(build_configdirs) 3334 3335# Host module lists & subconfigure args. 3336AC_SUBST(host_configargs) 3337AC_SUBST(configdirs) 3338AC_SUBST(target_configdirs) 3339 3340# Target module lists & subconfigure args. 3341AC_SUBST(target_configargs) 3342 3343 3344# Build tools. 3345AC_SUBST(AR_FOR_BUILD) 3346AC_SUBST(AS_FOR_BUILD) 3347AC_SUBST(CC_FOR_BUILD) 3348AC_SUBST(CFLAGS_FOR_BUILD) 3349AC_SUBST(CXXFLAGS_FOR_BUILD) 3350AC_SUBST(CXX_FOR_BUILD) 3351AC_SUBST(DLLTOOL_FOR_BUILD) 3352AC_SUBST(GFORTRAN_FOR_BUILD) 3353AC_SUBST(GOC_FOR_BUILD) 3354AC_SUBST(LDFLAGS_FOR_BUILD) 3355AC_SUBST(LD_FOR_BUILD) 3356AC_SUBST(NM_FOR_BUILD) 3357AC_SUBST(RANLIB_FOR_BUILD) 3358AC_SUBST(WINDMC_FOR_BUILD) 3359AC_SUBST(WINDRES_FOR_BUILD) 3360 3361# Generate default definitions for YACC, M4, LEX and other programs that run 3362# on the build machine. These are used if the Makefile can't locate these 3363# programs in objdir. 3364MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing 3365 3366AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y]) 3367case " $build_configdirs " in 3368 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;; 3369esac 3370 3371AC_CHECK_PROGS([BISON], [bison], [$MISSING bison]) 3372case " $build_configdirs " in 3373 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;; 3374esac 3375 3376AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4]) 3377case " $build_configdirs " in 3378 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;; 3379esac 3380 3381AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex]) 3382case " $build_configdirs " in 3383 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; 3384 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;; 3385esac 3386 3387AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex]) 3388case " $build_configdirs " in 3389 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; 3390esac 3391 3392AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo]) 3393case " $build_configdirs " in 3394 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;; 3395 *) 3396changequote(,) 3397 # For an installed makeinfo, we require it to be from texinfo 4.7 or 3398 # higher, else we use the "missing" dummy. 3399 if ${MAKEINFO} --version \ 3400 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then 3401 : 3402 else 3403 MAKEINFO="$MISSING makeinfo" 3404 fi 3405 ;; 3406changequote([,]) 3407esac 3408 3409# FIXME: expect and dejagnu may become build tools? 3410 3411AC_CHECK_PROGS(EXPECT, expect, expect) 3412case " $configdirs " in 3413 *" expect "*) 3414 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect' 3415 ;; 3416esac 3417 3418AC_CHECK_PROGS(RUNTEST, runtest, runtest) 3419case " $configdirs " in 3420 *" dejagnu "*) 3421 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest' 3422 ;; 3423esac 3424 3425 3426# Host tools. 3427NCN_STRICT_CHECK_TOOLS(AR, ar) 3428NCN_STRICT_CHECK_TOOLS(AS, as) 3429NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool) 3430NCN_STRICT_CHECK_TOOLS(LD, ld) 3431NCN_STRICT_CHECK_TOOLS(LIPO, lipo) 3432NCN_STRICT_CHECK_TOOLS(NM, nm) 3433NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true) 3434NCN_STRICT_CHECK_TOOLS(STRIP, strip, true) 3435NCN_STRICT_CHECK_TOOLS(WINDRES, windres) 3436NCN_STRICT_CHECK_TOOLS(WINDMC, windmc) 3437NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy) 3438NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump) 3439NCN_STRICT_CHECK_TOOLS(READELF, readelf) 3440AC_SUBST(CC) 3441AC_SUBST(CXX) 3442AC_SUBST(CFLAGS) 3443AC_SUBST(CXXFLAGS) 3444 3445GCC_PLUGIN_OPTION(PLUGIN_OPTION) 3446AR_PLUGIN_OPTION= 3447RANLIB_PLUGIN_OPTION= 3448if test -n "$PLUGIN_OPTION"; then 3449 if $AR --help 2>&1 | grep -q "\--plugin"; then 3450 AR_PLUGIN_OPTION="$PLUGIN_OPTION" 3451 fi 3452 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then 3453 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION" 3454 fi 3455else 3456 if test "$enable_pgo_build" != "no"; then 3457 AC_MSG_ERROR([AR with --plugin and rc is required for LTO build]) 3458 fi 3459fi 3460AC_SUBST(AR_PLUGIN_OPTION) 3461AC_SUBST(RANLIB_PLUGIN_OPTION) 3462 3463# Target tools. 3464AC_ARG_WITH([build-time-tools], 3465 [AS_HELP_STRING([--with-build-time-tools=PATH], 3466 [use given path to find target tools during the build])], 3467 [case x"$withval" in 3468 x/*) ;; 3469 *) 3470 with_build_time_tools= 3471 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path]) 3472 ;; 3473 esac], 3474 [with_build_time_tools=]) 3475 3476NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc) 3477NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx) 3478NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET}) 3479NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran) 3480NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo) 3481 3482ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar) 3483ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as) 3484ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool) 3485ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld) 3486ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo) 3487ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm) 3488ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy) 3489ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump) 3490ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib) 3491ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf) 3492ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip) 3493ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres) 3494ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc) 3495 3496RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET" 3497 3498GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar]) 3499GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new]) 3500GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) 3501dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS 3502GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX, 3503 [gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs], 3504 c++) 3505GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX, 3506 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs], 3507 c++) 3508GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool]) 3509GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) 3510GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN, 3511 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran) 3512GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC, 3513 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go) 3514GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new]) 3515GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO) 3516GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new]) 3517GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy]) 3518GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump]) 3519GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib]) 3520GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf]) 3521GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new]) 3522GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres]) 3523GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc]) 3524 3525AC_SUBST(FLAGS_FOR_TARGET) 3526AC_SUBST(RAW_CXX_FOR_TARGET) 3527 3528# Certain tools may need extra flags. 3529AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target} 3530RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target} 3531NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target} 3532 3533# When building target libraries, except in a Canadian cross, we use 3534# the same toolchain as the compiler we just built. 3535COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)' 3536COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)' 3537COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)' 3538if test $host = $build; then 3539 case " $configdirs " in 3540 *" gcc "*) 3541 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as' 3542 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld' 3543 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target} 3544 ;; 3545 esac 3546fi 3547 3548AC_SUBST(COMPILER_AS_FOR_TARGET) 3549AC_SUBST(COMPILER_LD_FOR_TARGET) 3550AC_SUBST(COMPILER_NM_FOR_TARGET) 3551 3552AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) 3553AC_ARG_ENABLE(maintainer-mode, 3554[AS_HELP_STRING([--enable-maintainer-mode], 3555 [enable make rules and dependencies not useful 3556 (and sometimes confusing) to the casual installer])], 3557 USE_MAINTAINER_MODE=$enableval, 3558 USE_MAINTAINER_MODE=no) 3559AC_MSG_RESULT($USE_MAINTAINER_MODE) 3560AC_SUBST(MAINTAINER_MODE_TRUE) 3561AC_SUBST(MAINTAINER_MODE_FALSE) 3562if test "$USE_MAINTAINER_MODE" = yes; then 3563 MAINTAINER_MODE_TRUE= 3564 MAINTAINER_MODE_FALSE='#' 3565else 3566 MAINTAINER_MODE_TRUE='#' 3567 MAINTAINER_MODE_FALSE= 3568fi 3569MAINT=$MAINTAINER_MODE_TRUE 3570AC_SUBST(MAINT)dnl 3571 3572# --------------------- 3573# GCC bootstrap support 3574# --------------------- 3575 3576# Stage specific cflags for build. 3577stage1_cflags="-g" 3578case $build in 3579 vax-*-*) 3580 case ${GCC} in 3581 yes) stage1_cflags="-g -Wa,-J" ;; 3582 *) stage1_cflags="-g -J" ;; 3583 esac ;; 3584esac 3585 3586AC_SUBST(stage1_cflags) 3587 3588# Enable --enable-checking in stage1 of the compiler. 3589AC_ARG_ENABLE(stage1-checking, 3590[AS_HELP_STRING([[--enable-stage1-checking[=all]]], 3591 [choose additional checking for stage1 of the compiler])], 3592[stage1_checking=--enable-checking=${enable_stage1_checking}], 3593[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then 3594 # For --disable-checking or implicit --enable-checking=release, avoid 3595 # setting --enable-checking=gc in the default stage1 checking for LTO 3596 # bootstraps. See PR62077. 3597 case $BUILD_CONFIG in 3598 *lto*) 3599 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;; 3600 *) 3601 stage1_checking=--enable-checking=yes,types;; 3602 esac 3603 if test "x$enable_checking" = x && \ 3604 test -d ${srcdir}/gcc && \ 3605 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then 3606 stage1_checking=--enable-checking=yes,types,extra 3607 fi 3608else 3609 stage1_checking=--enable-checking=$enable_checking,types 3610fi]) 3611AC_SUBST(stage1_checking) 3612 3613# Enable -Werror in bootstrap stage2 and later. 3614AC_ARG_ENABLE(werror, 3615[AS_HELP_STRING([--enable-werror], 3616 [enable -Werror in bootstrap stage2 and later])], 3617[ 3618case ${enable_werror} in 3619 yes) stage2_werror_flag="--enable-werror-always" ;; 3620 *) stage2_werror_flag="" ;; 3621esac 3622], 3623[ 3624if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then 3625 case $BUILD_CONFIG in 3626 bootstrap-debug) 3627 stage2_werror_flag="--enable-werror-always" ;; 3628 "") 3629 stage2_werror_flag="--enable-werror-always" ;; 3630 esac 3631fi 3632]) 3633 3634AC_SUBST(stage2_werror_flag) 3635 3636# Specify what files to not compare during bootstrap. 3637 3638compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*" 3639case "$target" in 3640 hppa*64*-*-hpux*) ;; 3641 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;; 3642 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;; 3643esac 3644AC_SUBST(compare_exclusions) 3645 3646AC_CONFIG_FILES([Makefile], 3647 [sed "$extrasub_build" Makefile | 3648 sed "$extrasub_host" | 3649 sed "$extrasub_target" > mf$$ 3650 mv -f mf$$ Makefile], 3651 [extrasub_build="$extrasub_build" 3652 extrasub_host="$extrasub_host" 3653 extrasub_target="$extrasub_target"]) 3654AC_OUTPUT 3655