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 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([libtool.m4]) 27m4_include([ltoptions.m4]) 28m4_include([ltsugar.m4]) 29m4_include([ltversion.m4]) 30m4_include([lt~obsolete.m4]) 31m4_include([config/isl.m4]) 32 33AC_INIT(move-if-change) 34AC_PREREQ(2.64) 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" 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="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb 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-libmpx \ 161 target-libssp \ 162 target-libquadmath \ 163 target-libgfortran \ 164 target-libffi \ 165 target-libobjc \ 166 target-libada \ 167 target-libgo" 168 169# these tools are built using the target libraries, and are intended to 170# run only in the target environment 171# 172# note: any program that *uses* libraries that are in the "target_libraries" 173# list belongs in this list. 174# 175target_tools="target-rda" 176 177################################################################################ 178 179## All tools belong in one of the four categories, and are assigned above 180## We assign ${configdirs} this way to remove all embedded newlines. This 181## is important because configure will choke if they ever get through. 182## ${configdirs} is directories we build using the host tools. 183## ${target_configdirs} is directories we build using the target tools. 184configdirs=`echo ${host_libs} ${host_tools}` 185target_configdirs=`echo ${target_libraries} ${target_tools}` 186build_configdirs=`echo ${build_libs} ${build_tools}` 187 188m4_divert_text([PARSE_ARGS], 189[case $srcdir in 190 *" "*) 191m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl 192 AC_MSG_ERROR([path to source, $srcdir, contains spaces]) 193m4_popdef([AS_MESSAGE_LOG_FD])dnl 194 ;; 195esac 196ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'` 197]) 198 199################################################################################ 200 201srcname="gnu development package" 202 203# This gets set non-empty for some net releases of packages. 204appdirs="" 205 206# Define is_cross_compiler to save on calls to 'test'. 207is_cross_compiler= 208if test x"${host}" = x"${target}" ; then 209 is_cross_compiler=no 210else 211 is_cross_compiler=yes 212fi 213 214# Find the build and target subdir names. 215GCC_TOPLEV_SUBDIRS 216# Be sure to cover against remnants of an in-tree build. 217if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then 218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}. 219Use a pristine source tree when building in a separate tree]) 220fi 221 222# Skipdirs are removed silently. 223skipdirs= 224# Noconfigdirs are removed loudly. 225noconfigdirs="" 226 227use_gnu_ld= 228# Make sure we don't let GNU ld be added if we didn't want it. 229if test x$with_gnu_ld = xno ; then 230 use_gnu_ld=no 231 noconfigdirs="$noconfigdirs ld gold" 232fi 233 234use_gnu_as= 235# Make sure we don't let GNU as be added if we didn't want it. 236if test x$with_gnu_as = xno ; then 237 use_gnu_as=no 238 noconfigdirs="$noconfigdirs gas" 239fi 240 241use_included_zlib= 242AC_ARG_WITH(system-zlib, 243[AS_HELP_STRING([--with-system-zlib], [use installed libz])]) 244# Make sure we don't let ZLIB be added if we didn't want it. 245if test x$with_system_zlib = xyes ; then 246 use_included_zlib=no 247 noconfigdirs="$noconfigdirs zlib" 248fi 249 250# some tools are so dependent upon X11 that if we're not building with X, 251# it's not even worth trying to configure, much less build, that tool. 252 253case ${with_x} in 254 yes | "") ;; # the default value for this tree is that X11 is available 255 no) 256 skipdirs="${skipdirs} tk itcl libgui" 257 # We won't be able to build gdbtk without X. 258 enable_gdbtk=no 259 ;; 260 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;; 261esac 262 263# Some are only suitable for cross toolchains. 264# Remove these if host=target. 265cross_only="target-libgloss target-newlib target-opcodes" 266 267case $is_cross_compiler in 268 no) skipdirs="${skipdirs} ${cross_only}" ;; 269esac 270 271# If both --with-headers and --with-libs are specified, default to 272# --without-newlib. 273if test x"${with_headers}" != x && test x"${with_headers}" != xno \ 274 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then 275 if test x"${with_newlib}" = x ; then 276 with_newlib=no 277 fi 278fi 279 280# Recognize --with-newlib/--without-newlib. 281case ${with_newlib} in 282 no) skipdirs="${skipdirs} target-newlib" ;; 283 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;; 284esac 285 286AC_ARG_ENABLE(as-accelerator-for, 287[AS_HELP_STRING([--enable-as-accelerator-for=ARG], 288 [build as offload target compiler. 289 Specify offload host triple by ARG])]) 290 291AC_ARG_ENABLE(offload-targets, 292[AS_HELP_STRING([--enable-offload-targets=LIST], 293 [enable offloading to devices from comma-separated LIST of 294 TARGET[=DIR]. Use optional path to find offload target compiler 295 during the build])], 296[ 297 if test x"$enable_offload_targets" = x; then 298 AC_MSG_ERROR([no offload targets specified]) 299 fi 300], [enable_offload_targets=]) 301 302# Handle --enable-gold, --enable-ld. 303# --disable-gold [--enable-ld] 304# Build only ld. Default option. 305# --enable-gold [--enable-ld] 306# Build both gold and ld. Install gold as "ld.gold", install ld 307# as "ld.bfd" and "ld". 308# --enable-gold=default [--enable-ld] 309# Build both gold and ld. Install gold as "ld.gold" and "ld", 310# install ld as "ld.bfd". 311# --enable-gold[=default] --disable-ld 312# Build only gold, which is then installed as both "ld.gold" and "ld". 313# --enable-gold --enable-ld=default 314# Build both gold (installed as "ld.gold") and ld (installed as "ld" 315# and ld.bfd). 316# In other words, ld is default 317# --enable-gold=default --enable-ld=default 318# Error. 319 320default_ld= 321AC_ARG_ENABLE(gold, 322[AS_HELP_STRING([[--enable-gold[=ARG]]], 323 [build gold @<:@ARG={default,yes,no}@:>@])], 324ENABLE_GOLD=$enableval, 325ENABLE_GOLD=no) 326case "${ENABLE_GOLD}" in 327 yes|default) 328 # Check for ELF target. 329 is_elf=no 330 case "${target}" in 331 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \ 332 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \ 333 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \ 334 | *-*-solaris2* | *-*-nto* | *-*-nacl*) 335 case "${target}" in 336 *-*-linux*aout* | *-*-linux*oldld*) 337 ;; 338 *) 339 is_elf=yes 340 ;; 341 esac 342 esac 343 344 if test "$is_elf" = "yes"; then 345 # Check for target supported by gold. 346 case "${target}" in 347 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \ 348 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*) 349 configdirs="$configdirs gold" 350 if test x${ENABLE_GOLD} = xdefault; then 351 default_ld=gold 352 fi 353 ENABLE_GOLD=yes 354 ;; 355 esac 356 fi 357 ;; 358 no) 359 ;; 360 *) 361 AC_MSG_ERROR([invalid --enable-gold argument]) 362 ;; 363esac 364 365AC_ARG_ENABLE(ld, 366[AS_HELP_STRING([[--enable-ld[=ARG]]], 367 [build ld @<:@ARG={default,yes,no}@:>@])], 368ENABLE_LD=$enableval, 369ENABLE_LD=yes) 370 371case "${ENABLE_LD}" in 372 default) 373 if test x${default_ld} != x; then 374 AC_MSG_ERROR([either gold or ld can be the default ld]) 375 fi 376 ;; 377 yes) 378 ;; 379 no) 380 if test x${ENABLE_GOLD} != xyes; then 381 AC_MSG_WARN([neither ld nor gold are enabled]) 382 fi 383 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'` 384 ;; 385 *) 386 AC_MSG_ERROR([invalid --enable-ld argument]) 387 ;; 388esac 389 390# PR gas/19109 391# Decide the default method for compressing debug sections. 392# Provide a configure time option to override our default. 393AC_ARG_ENABLE(compressed_debug_sections, 394[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}], 395 [Enable compressed debug sections for gas, gold or ld by 396 default])], 397[ 398 if test x"$enable_compressed_debug_sections" = xyes; then 399 AC_MSG_ERROR([no program with compressed debug sections specified]) 400 fi 401], [enable_compressed_debug_sections=]) 402 403# Configure extra directories which are host specific 404 405case "${host}" in 406 *-cygwin*) 407 configdirs="$configdirs libtermcap" ;; 408esac 409 410# A target can indicate whether a language isn't supported for some reason. 411# Only spaces may be used in this macro; not newlines or tabs. 412unsupported_languages= 413 414# Remove more programs from consideration, based on the host or 415# target this usually means that a port of the program doesn't 416# exist yet. 417 418case "${host}" in 419 i[[3456789]]86-*-msdosdjgpp*) 420 noconfigdirs="$noconfigdirs tcl tk itcl" 421 ;; 422esac 423 424 425AC_ARG_ENABLE(libquadmath, 426AS_HELP_STRING([--disable-libquadmath], 427 [do not build libquadmath directory]), 428ENABLE_LIBQUADMATH=$enableval, 429ENABLE_LIBQUADMATH=yes) 430if test "${ENABLE_LIBQUADMATH}" = "no" ; then 431 noconfigdirs="$noconfigdirs target-libquadmath" 432fi 433 434 435AC_ARG_ENABLE(libquadmath-support, 436AS_HELP_STRING([--disable-libquadmath-support], 437 [disable libquadmath support for Fortran]), 438ENABLE_LIBQUADMATH_SUPPORT=$enableval, 439ENABLE_LIBQUADMATH_SUPPORT=yes) 440enable_libquadmath_support= 441if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then 442 enable_libquadmath_support=no 443fi 444 445 446AC_ARG_ENABLE(libada, 447[AS_HELP_STRING([--enable-libada], [build libada directory])], 448ENABLE_LIBADA=$enableval, 449ENABLE_LIBADA=yes) 450if test "${ENABLE_LIBADA}" != "yes" ; then 451 noconfigdirs="$noconfigdirs gnattools" 452fi 453 454AC_ARG_ENABLE(libssp, 455[AS_HELP_STRING([--enable-libssp], [build libssp directory])], 456ENABLE_LIBSSP=$enableval, 457ENABLE_LIBSSP=yes) 458 459AC_ARG_ENABLE(libstdcxx, 460AS_HELP_STRING([--disable-libstdcxx], 461 [do not build libstdc++-v3 directory]), 462ENABLE_LIBSTDCXX=$enableval, 463ENABLE_LIBSTDCXX=default) 464[if test "${ENABLE_LIBSTDCXX}" = "no" ; then 465 noconfigdirs="$noconfigdirs target-libstdc++-v3" 466fi] 467 468# If this is accelerator compiler and its target is intelmic we enable 469# target liboffloadmic by default. If this is compiler with offloading 470# for intelmic we enable host liboffloadmic by default. Otherwise 471# liboffloadmic is disabled by default. 472AC_ARG_ENABLE([liboffloadmic], 473AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]], 474 [build liboffloadmic @<:@ARG={no,host,target}@:>@]), 475[case "$enableval" in 476 no | host | target) 477 enable_liboffloadmic=$enableval ;; 478 *) 479 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;; 480esac], 481[if test x"$enable_as_accelerator_for" != x; then 482 case "${target}" in 483 *-intelmic-* | *-intelmicemul-*) 484 enable_liboffloadmic=target 485 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target" 486 ;; 487 *) 488 enable_liboffloadmic=no 489 ;; 490 esac 491else 492 case "${enable_offload_targets}" in 493 *-intelmic-* | *-intelmicemul-*) 494 enable_liboffloadmic=host 495 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host" 496 ;; 497 *) 498 enable_liboffloadmic=no 499 ;; 500 esac 501fi]) 502AC_SUBST(extra_liboffloadmic_configure_flags) 503 504# Enable libgomp by default on hosted POSIX systems, and a few others. 505if test x$enable_libgomp = x ; then 506 case "${target}" in 507 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 508 ;; 509 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*) 510 ;; 511 *-*-solaris2* | *-*-hpux11*) 512 ;; 513 *-*-darwin* | *-*-aix*) 514 ;; 515 nvptx*-*-*) 516 ;; 517 *) 518 noconfigdirs="$noconfigdirs target-libgomp" 519 ;; 520 esac 521fi 522 523# Disable libatomic on unsupported systems. 524if test -d ${srcdir}/libatomic; then 525 if test x$enable_libatomic = x; then 526 AC_MSG_CHECKING([for libatomic support]) 527 if (srcdir=${srcdir}/libatomic; \ 528 . ${srcdir}/configure.tgt; \ 529 test -n "$UNSUPPORTED") 530 then 531 AC_MSG_RESULT([no]) 532 noconfigdirs="$noconfigdirs target-libatomic" 533 else 534 AC_MSG_RESULT([yes]) 535 fi 536 fi 537fi 538 539# Disable liboffloadmic on unsupported systems. 540if test -d ${srcdir}/liboffloadmic; then 541 if test x$enable_liboffloadmic != xno; then 542 AC_MSG_CHECKING([for liboffloadmic support]) 543 if (srcdir=${srcdir}/liboffloadmic; \ 544 . ${srcdir}/configure.tgt; \ 545 test -n "$UNSUPPORTED") 546 then 547 AC_MSG_RESULT([no]) 548 noconfigdirs="$noconfigdirs target-liboffloadmic" 549 else 550 AC_MSG_RESULT([yes]) 551 fi 552 fi 553fi 554 555# Disable libitm on unsupported systems. 556if test -d ${srcdir}/libitm; then 557 if test x$enable_libitm = x; then 558 AC_MSG_CHECKING([for libitm support]) 559 if (srcdir=${srcdir}/libitm; \ 560 . ${srcdir}/configure.tgt; \ 561 test -n "$UNSUPPORTED") 562 then 563 AC_MSG_RESULT([no]) 564 noconfigdirs="$noconfigdirs target-libitm" 565 else 566 AC_MSG_RESULT([yes]) 567 fi 568 fi 569fi 570 571# Disable libsanitizer on unsupported systems. 572if test -d ${srcdir}/libsanitizer; then 573 if test x$enable_libsanitizer = x; then 574 AC_MSG_CHECKING([for libsanitizer support]) 575 if (srcdir=${srcdir}/libsanitizer; \ 576 . ${srcdir}/configure.tgt; \ 577 test -n "$UNSUPPORTED") 578 then 579 AC_MSG_RESULT([no]) 580 noconfigdirs="$noconfigdirs target-libsanitizer" 581 else 582 AC_MSG_RESULT([yes]) 583 fi 584 fi 585fi 586 587# Disable libvtv on unsupported systems. 588if test -d ${srcdir}/libvtv; then 589 if test x$enable_libvtv = x; then 590 AC_MSG_CHECKING([for libvtv support]) 591 if (srcdir=${srcdir}/libvtv; \ 592 . ${srcdir}/configure.tgt; \ 593 test "$VTV_SUPPORTED" != "yes") 594 then 595 AC_MSG_RESULT([no]) 596 noconfigdirs="$noconfigdirs target-libvtv" 597 else 598 AC_MSG_RESULT([yes]) 599 fi 600 fi 601fi 602 603 604# Enable libmpx on supported systems by request. 605if test -d ${srcdir}/libmpx; then 606 if test x$enable_libmpx = x; then 607 AC_MSG_CHECKING([for libmpx support]) 608 if (srcdir=${srcdir}/libmpx; \ 609 . ${srcdir}/configure.tgt; \ 610 test "$LIBMPX_SUPPORTED" != "yes") 611 then 612 AC_MSG_RESULT([no]) 613 noconfigdirs="$noconfigdirs target-libmpx" 614 else 615 AC_MSG_RESULT([yes]) 616 fi 617 fi 618fi 619 620# Disable libhsail-rt on unsupported systems. 621if test -d ${srcdir}/libhsail-rt; then 622 if test x$enable_libhsail_rt = x; then 623 AC_MSG_CHECKING([for libhsail-rt support]) 624 if (srcdir=${srcdir}/libhsail-rt; \ 625 . ${srcdir}/configure.tgt; \ 626 test -n "$UNSUPPORTED") 627 then 628 AC_MSG_RESULT([no]) 629 unsupported_languages="$unsupported_languages brig" 630 # This implicitly disables also target-libhsail-rt as it won't 631 # get added to the build without BRIG FE. 632 else 633 AC_MSG_RESULT([yes]) 634 fi 635 fi 636fi 637 638 639# Disable libquadmath for some systems. 640case "${target}" in 641 avr-*-*) 642 noconfigdirs="$noconfigdirs target-libquadmath" 643 ;; 644 # libquadmath is unused on AIX and libquadmath build process use of 645 # LD_LIBRARY_PATH can break AIX bootstrap. 646 powerpc-*-aix* | rs6000-*-aix*) 647 noconfigdirs="$noconfigdirs target-libquadmath" 648 ;; 649esac 650 651# Disable libssp for some systems. 652case "${target}" in 653 avr-*-*) 654 # No hosted I/O support. 655 noconfigdirs="$noconfigdirs target-libssp" 656 ;; 657 powerpc-*-aix* | rs6000-*-aix*) 658 noconfigdirs="$noconfigdirs target-libssp" 659 ;; 660 rl78-*-*) 661 # libssp uses a misaligned load to trigger a fault, but the RL78 662 # doesn't fault for those - instead, it gives a build-time error 663 # for explicit misaligned loads. 664 noconfigdirs="$noconfigdirs target-libssp" 665 ;; 666 visium-*-*) 667 # No hosted I/O support. 668 noconfigdirs="$noconfigdirs target-libssp" 669 ;; 670esac 671 672# Disable libstdc++-v3 for some systems. 673# Allow user to override this if they pass --enable-libstdc++-v3 674if test "${ENABLE_LIBSTDCXX}" = "default" ; then 675 case "${target}" in 676 *-*-vxworks*) 677 # VxWorks uses the Dinkumware C++ library. 678 noconfigdirs="$noconfigdirs target-libstdc++-v3" 679 ;; 680 arm*-wince-pe*) 681 # the C++ libraries don't build on top of CE's C libraries 682 noconfigdirs="$noconfigdirs target-libstdc++-v3" 683 ;; 684 avr-*-*) 685 noconfigdirs="$noconfigdirs target-libstdc++-v3" 686 ;; 687 ft32-*-*) 688 noconfigdirs="$noconfigdirs target-libstdc++-v3" 689 ;; 690 esac 691fi 692 693# Disable Fortran for some systems. 694case "${target}" in 695 mmix-*-*) 696 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>. 697 unsupported_languages="$unsupported_languages fortran" 698 ;; 699esac 700 701# Disable libffi for some systems. 702case "${target}" in 703 powerpc-*-darwin*) 704 ;; 705 i[[3456789]]86-*-darwin*) 706 ;; 707 x86_64-*-darwin[[912]]*) 708 ;; 709 *-*-darwin*) 710 noconfigdirs="$noconfigdirs target-libffi" 711 ;; 712 *-*-netware*) 713 noconfigdirs="$noconfigdirs target-libffi" 714 ;; 715 *-*-phoenix*) 716 noconfigdirs="$noconfigdirs target-libffi" 717 ;; 718 *-*-rtems*) 719 noconfigdirs="$noconfigdirs target-libffi" 720 ;; 721 *-*-tpf*) 722 noconfigdirs="$noconfigdirs target-libffi" 723 ;; 724 *-*-uclinux*) 725 noconfigdirs="$noconfigdirs target-libffi" 726 ;; 727 *-*-vxworks*) 728 noconfigdirs="$noconfigdirs target-libffi" 729 ;; 730 aarch64*-*-freebsd*) 731 noconfigdirs="$noconfigdirs target-libffi" 732 ;; 733 alpha*-*-*vms*) 734 noconfigdirs="$noconfigdirs target-libffi" 735 ;; 736 arm*-*-freebsd*) 737 noconfigdirs="$noconfigdirs target-libffi" 738 ;; 739 arm-wince-pe) 740 noconfigdirs="$noconfigdirs target-libffi" 741 ;; 742 arm*-*-symbianelf*) 743 noconfigdirs="$noconfigdirs target-libffi" 744 ;; 745 cris-*-* | crisv32-*-*) 746 case "${target}" in 747 *-*-linux*) 748 ;; 749 *) # See PR46792 regarding target-libffi. 750 noconfigdirs="$noconfigdirs target-libffi";; 751 esac 752 ;; 753 hppa*64*-*-hpux*) 754 noconfigdirs="$noconfigdirs target-libffi" 755 ;; 756 hppa*-hp-hpux11*) 757 ;; 758 hppa*-*-hpux*) 759 noconfigdirs="$noconfigdirs target-libffi" 760 ;; 761 ia64*-*-*vms*) 762 noconfigdirs="$noconfigdirs target-libffi" 763 ;; 764 i[[3456789]]86-w64-mingw*) 765 noconfigdirs="$noconfigdirs target-libffi" 766 ;; 767 i[[3456789]]86-*-mingw*) 768 noconfigdirs="$noconfigdirs target-libffi" 769 ;; 770 x86_64-*-mingw*) 771 noconfigdirs="$noconfigdirs target-libffi" 772 ;; 773 mmix-*-*) 774 noconfigdirs="$noconfigdirs target-libffi" 775 ;; 776 powerpc-*-aix*) 777 ;; 778 rs6000-*-aix*) 779 ;; 780 ft32-*-*) 781 noconfigdirs="$noconfigdirs target-libffi" 782 ;; 783 *-*-lynxos*) 784 noconfigdirs="$noconfigdirs target-libffi" 785 ;; 786esac 787 788# Disable the go frontend on systems where it is known to not work. Please keep 789# this in sync with contrib/config-list.mk. 790case "${target}" in 791*-*-darwin* | *-*-cygwin* | *-*-mingw*) 792 unsupported_languages="$unsupported_languages go" 793 ;; 794esac 795 796# Disable libgo for some systems where it is known to not work. 797# For testing, you can easily override this with --enable-libgo. 798if test x$enable_libgo = x; then 799 case "${target}" in 800 *-*-darwin*) 801 # PR 46986 802 noconfigdirs="$noconfigdirs target-libgo" 803 ;; 804 *-*-cygwin* | *-*-mingw*) 805 noconfigdirs="$noconfigdirs target-libgo" 806 ;; 807 esac 808fi 809 810# Default libgloss CPU subdirectory. 811libgloss_dir="$target_cpu" 812 813case "${target}" in 814 sh*-*-pe|mips*-*-pe|*arm-wince-pe) 815 libgloss_dir=wince 816 ;; 817 aarch64*-*-* ) 818 libgloss_dir=aarch64 819 ;; 820 arm*-*-*) 821 libgloss_dir=arm 822 ;; 823 cris-*-* | crisv32-*-*) 824 libgloss_dir=cris 825 ;; 826 hppa*-*-*) 827 libgloss_dir=pa 828 ;; 829 i[[3456789]]86-*-*) 830 libgloss_dir=i386 831 ;; 832 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*) 833 libgloss_dir=m68hc11 834 ;; 835 m68*-*-* | fido-*-*) 836 libgloss_dir=m68k 837 ;; 838 mips*-*-*) 839 libgloss_dir=mips 840 ;; 841 powerpc*-*-*) 842 libgloss_dir=rs6000 843 ;; 844 sparc*-*-*) 845 libgloss_dir=sparc 846 ;; 847esac 848 849# Disable newlib and libgloss for various target OSes. 850case "${target}" in 851 alpha*-dec-osf*) 852 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 853 ;; 854 i[[3456789]]86-*-linux*) 855 # This section makes it possible to build newlib natively on linux. 856 # If we are using a cross compiler then don't configure newlib. 857 if test x${is_cross_compiler} != xno ; then 858 noconfigdirs="$noconfigdirs target-newlib" 859 fi 860 noconfigdirs="$noconfigdirs target-libgloss" 861 # If we are not using a cross compiler, do configure newlib. 862 # Note however, that newlib will only be configured in this situation 863 # if the --with-newlib option has been given, because otherwise 864 # 'target-newlib' will appear in skipdirs. 865 ;; 866 i[[3456789]]86-*-rdos*) 867 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 868 ;; 869 sh*-*-pe|mips*-*-pe|arm-wince-pe) 870 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 871 ;; 872 sparc-*-sunos4*) 873 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 874 ;; 875 *-*-aix*) 876 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 877 ;; 878 *-*-beos*) 879 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 880 ;; 881 *-*-chorusos) 882 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 883 ;; 884 *-*-dragonfly*) 885 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 886 ;; 887 *-*-freebsd*) 888 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 889 ;; 890 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 891 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 892 ;; 893 *-*-lynxos*) 894 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 895 ;; 896 *-*-mingw*) 897 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 898 ;; 899 *-*-netbsd*) 900 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 901 ;; 902 *-*-netware*) 903 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 904 ;; 905 *-*-tpf*) 906 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 907 ;; 908 *-*-uclinux*) 909 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 910 ;; 911 *-*-vxworks*) 912 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 913 ;; 914esac 915 916case "${target}" in 917 *-*-chorusos) 918 ;; 919 aarch64-*-darwin*) 920 noconfigdirs="$noconfigdirs ld gas gdb gprof" 921 noconfigdirs="$noconfigdirs sim target-rda" 922 ;; 923 arm-*-darwin*) 924 noconfigdirs="$noconfigdirs ld gas gdb gprof" 925 noconfigdirs="$noconfigdirs sim target-rda" 926 ;; 927 powerpc-*-darwin*) 928 noconfigdirs="$noconfigdirs ld gas gdb gprof" 929 noconfigdirs="$noconfigdirs sim target-rda" 930 ;; 931 i[[3456789]]86-*-darwin*) 932 noconfigdirs="$noconfigdirs ld gprof" 933 noconfigdirs="$noconfigdirs sim target-rda" 934 ;; 935 x86_64-*-darwin[[912]]*) 936 noconfigdirs="$noconfigdirs ld gas gprof" 937 noconfigdirs="$noconfigdirs sim target-rda" 938 ;; 939 *-*-darwin*) 940 noconfigdirs="$noconfigdirs ld gas gdb gprof" 941 noconfigdirs="$noconfigdirs sim target-rda" 942 ;; 943 *-*-dragonfly*) 944 ;; 945 *-*-freebsd*) 946 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \ 947 && test -f /usr/local/include/gmp.h; then 948 with_gmp=/usr/local 949 fi 950 ;; 951 *-*-kaos*) 952 # Remove unsupported stuff on all kaOS configurations. 953 noconfigdirs="$noconfigdirs target-libgloss" 954 ;; 955 *-*-netbsd*) 956 ;; 957 *-*-netware*) 958 ;; 959 *-*-phoenix*) 960 noconfigdirs="$noconfigdirs target-libgloss" 961 ;; 962 *-*-rtems*) 963 noconfigdirs="$noconfigdirs target-libgloss" 964 ;; 965 # The tpf target doesn't support gdb yet. 966 *-*-tpf*) 967 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl" 968 ;; 969 *-*-uclinux*) 970 noconfigdirs="$noconfigdirs target-rda" 971 ;; 972 *-*-vxworks*) 973 ;; 974 alpha*-dec-osf*) 975 # ld works, but does not support shared libraries. 976 # gas doesn't generate exception information. 977 noconfigdirs="$noconfigdirs gas ld" 978 ;; 979 alpha*-*-*vms*) 980 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss" 981 ;; 982 alpha*-*-*) 983 # newlib is not 64 bit ready 984 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 985 ;; 986 sh*-*-pe|mips*-*-pe|*arm-wince-pe) 987 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim" 988 ;; 989 arc*-*-*) 990 noconfigdirs="$noconfigdirs sim" 991 ;; 992 arm-*-pe*) 993 noconfigdirs="$noconfigdirs target-libgloss" 994 ;; 995 arm-*-riscix*) 996 noconfigdirs="$noconfigdirs ld target-libgloss" 997 ;; 998 avr-*-*) 999 if test x${with_avrlibc} != xno; then 1000 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1001 fi 1002 ;; 1003 c4x-*-* | tic4x-*-*) 1004 noconfigdirs="$noconfigdirs target-libgloss" 1005 ;; 1006 tic54x-*-*) 1007 noconfigdirs="$noconfigdirs target-libgloss gdb" 1008 ;; 1009 d10v-*-*) 1010 noconfigdirs="$noconfigdirs target-libgloss" 1011 ;; 1012 d30v-*-*) 1013 noconfigdirs="$noconfigdirs gdb" 1014 ;; 1015 fr30-*-elf*) 1016 noconfigdirs="$noconfigdirs gdb" 1017 ;; 1018 ft32-*-*) 1019 noconfigdirs="$noconfigdirs target-rda gprof" 1020 ;; 1021 moxie-*-*) 1022 noconfigdirs="$noconfigdirs" 1023 ;; 1024 h8300*-*-*) 1025 noconfigdirs="$noconfigdirs target-libgloss" 1026 ;; 1027 h8500-*-*) 1028 noconfigdirs="$noconfigdirs target-libgloss" 1029 ;; 1030 hppa1.1-*-osf* | hppa1.1-*-bsd* ) 1031 ;; 1032 hppa*64*-*-hpux*) 1033 noconfigdirs="$noconfigdirs gdb" 1034 ;; 1035 hppa*-*-hpux11*) 1036 noconfigdirs="$noconfigdirs gdb ld" 1037 ;; 1038 hppa*64*-*-linux*) 1039 ;; 1040 hppa*-*-linux*) 1041 ;; 1042 hppa*-*-*elf* | \ 1043 hppa*-*-lites* | \ 1044 hppa*-*-openbsd* | \ 1045 hppa*64*-*-*) 1046 ;; 1047 hppa*-*-pro*) 1048 ;; 1049 hppa*-*-*) 1050 noconfigdirs="$noconfigdirs ld" 1051 ;; 1052 i960-*-*) 1053 noconfigdirs="$noconfigdirs gdb" 1054 ;; 1055 ia64*-*-elf*) 1056 # No gdb support yet. 1057 noconfigdirs="$noconfigdirs readline libgui itcl gdb" 1058 ;; 1059 ia64*-**-hpux*) 1060 # No ld support yet. 1061 noconfigdirs="$noconfigdirs gdb libgui itcl ld" 1062 ;; 1063 ia64*-*-*vms*) 1064 # No ld support yet. 1065 noconfigdirs="$noconfigdirs libgui itcl ld" 1066 ;; 1067 i[[3456789]]86-w64-mingw*) 1068 ;; 1069 i[[3456789]]86-*-mingw*) 1070 target_configdirs="$target_configdirs target-winsup" 1071 ;; 1072 *-*-cygwin*) 1073 target_configdirs="$target_configdirs target-libtermcap target-winsup" 1074 noconfigdirs="$noconfigdirs target-libgloss" 1075 # always build newlib if winsup directory is present. 1076 if test -d "$srcdir/winsup/cygwin"; then 1077 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` 1078 elif test -d "$srcdir/newlib"; then 1079 echo "Warning: winsup/cygwin is missing so newlib can't be built." 1080 fi 1081 ;; 1082 i[[3456789]]86-*-pe) 1083 noconfigdirs="$noconfigdirs target-libgloss" 1084 ;; 1085 i[[3456789]]86-*-sco3.2v5*) 1086 # The linker does not yet know about weak symbols in COFF, 1087 # and is not configured to handle mixed ELF and COFF. 1088 noconfigdirs="$noconfigdirs ld target-libgloss" 1089 ;; 1090 i[[3456789]]86-*-sco*) 1091 noconfigdirs="$noconfigdirs gprof target-libgloss" 1092 ;; 1093 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*) 1094 noconfigdirs="$noconfigdirs target-libgloss" 1095 ;; 1096 i[[3456789]]86-*-sysv4*) 1097 noconfigdirs="$noconfigdirs target-libgloss" 1098 ;; 1099 i[[3456789]]86-*-beos*) 1100 noconfigdirs="$noconfigdirs gdb" 1101 ;; 1102 i[[3456789]]86-*-rdos*) 1103 noconfigdirs="$noconfigdirs gdb" 1104 ;; 1105 mmix-*-*) 1106 noconfigdirs="$noconfigdirs gdb" 1107 ;; 1108 mt-*-*) 1109 noconfigdirs="$noconfigdirs sim" 1110 ;; 1111 powerpc-*-aix*) 1112 # copied from rs6000-*-* entry 1113 noconfigdirs="$noconfigdirs gprof" 1114 ;; 1115 powerpc*-*-winnt* | powerpc*-*-pe*) 1116 target_configdirs="$target_configdirs target-winsup" 1117 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl" 1118 # always build newlib. 1119 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` 1120 ;; 1121 # This is temporary until we can link against shared libraries 1122 powerpcle-*-solaris*) 1123 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl" 1124 ;; 1125 powerpc-*-beos*) 1126 noconfigdirs="$noconfigdirs gdb" 1127 ;; 1128 rs6000-*-lynxos*) 1129 noconfigdirs="$noconfigdirs gprof" 1130 ;; 1131 rs6000-*-aix*) 1132 noconfigdirs="$noconfigdirs gprof" 1133 ;; 1134 rs6000-*-*) 1135 noconfigdirs="$noconfigdirs gprof" 1136 ;; 1137 m68k-apollo-*) 1138 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss" 1139 ;; 1140 microblaze*) 1141 noconfigdirs="$noconfigdirs gprof" 1142 ;; 1143 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) 1144 if test x$with_newlib = xyes; then 1145 noconfigdirs="$noconfigdirs gprof" 1146 fi 1147 ;; 1148 mips*-*-irix5*) 1149 noconfigdirs="$noconfigdirs gprof target-libgloss" 1150 ;; 1151 mips*-*-irix6*) 1152 noconfigdirs="$noconfigdirs gprof target-libgloss" 1153 ;; 1154 mips*-*-bsd*) 1155 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss" 1156 ;; 1157 mips*-*-linux*) 1158 ;; 1159 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \ 1160 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*) 1161 noconfigdirs="$noconfigdirs ld gas gprof" 1162 ;; 1163 mips*-*-*) 1164 noconfigdirs="$noconfigdirs gprof" 1165 ;; 1166 nvptx*-*-*) 1167 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc" 1168 ;; 1169 sh-*-*) 1170 case "${target}" in 1171 sh*-*-elf) 1172 ;; 1173 *) 1174 noconfigdirs="$noconfigdirs target-libgloss" ;; 1175 esac 1176 ;; 1177 sparc-*-sunos4*) 1178 if test x${is_cross_compiler} = xno ; then 1179 use_gnu_ld=no 1180 fi 1181 ;; 1182 tic6x-*-*) 1183 noconfigdirs="$noconfigdirs sim" 1184 ;; 1185 tilepro*-*-* | tilegx*-*-*) 1186 noconfigdirs="$noconfigdirs sim" 1187 ;; 1188 v810-*-*) 1189 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss" 1190 ;; 1191 vax-*-*) 1192 noconfigdirs="$noconfigdirs target-newlib target-libgloss" 1193 ;; 1194 wasm32-*-*) 1195 noconfigdirs="$noconfigdirs ld" 1196 ;; 1197esac 1198 1199# If we aren't building newlib, then don't build libgloss, since libgloss 1200# depends upon some newlib header files. 1201case "${noconfigdirs}" in 1202 *target-libgloss*) ;; 1203 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;; 1204esac 1205 1206# Work in distributions that contain no compiler tools, like Autoconf. 1207host_makefile_frag=/dev/null 1208if test -d ${srcdir}/config ; then 1209case "${host}" in 1210 i[[3456789]]86-*-msdosdjgpp*) 1211 host_makefile_frag="config/mh-djgpp" 1212 ;; 1213 *-cygwin*) 1214 ACX_CHECK_CYGWIN_CAT_WORKS 1215 host_makefile_frag="config/mh-cygwin" 1216 ;; 1217 *-mingw*) 1218 host_makefile_frag="config/mh-mingw" 1219 ;; 1220 alpha*-linux*) 1221 host_makefile_frag="config/mh-alpha-linux" 1222 ;; 1223 hppa*-hp-hpux10*) 1224 host_makefile_frag="config/mh-pa-hpux10" 1225 ;; 1226 hppa*-hp-hpux*) 1227 host_makefile_frag="config/mh-pa" 1228 ;; 1229 hppa*-*) 1230 host_makefile_frag="config/mh-pa" 1231 ;; 1232 *-*-darwin*) 1233 host_makefile_frag="config/mh-darwin" 1234 ;; 1235 powerpc-*-aix*) 1236 host_makefile_frag="config/mh-ppc-aix" 1237 ;; 1238 rs6000-*-aix*) 1239 host_makefile_frag="config/mh-ppc-aix" 1240 ;; 1241esac 1242fi 1243 1244if test "${build}" != "${host}" ; then 1245 AR_FOR_BUILD=${AR_FOR_BUILD-ar} 1246 AS_FOR_BUILD=${AS_FOR_BUILD-as} 1247 CC_FOR_BUILD=${CC_FOR_BUILD-gcc} 1248 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++} 1249 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran} 1250 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo} 1251 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool} 1252 LD_FOR_BUILD=${LD_FOR_BUILD-ld} 1253 NM_FOR_BUILD=${NM_FOR_BUILD-nm} 1254 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib} 1255 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres} 1256 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc} 1257else 1258 AR_FOR_BUILD="\$(AR)" 1259 AS_FOR_BUILD="\$(AS)" 1260 CC_FOR_BUILD="\$(CC)" 1261 CXX_FOR_BUILD="\$(CXX)" 1262 GFORTRAN_FOR_BUILD="\$(GFORTRAN)" 1263 GOC_FOR_BUILD="\$(GOC)" 1264 DLLTOOL_FOR_BUILD="\$(DLLTOOL)" 1265 LD_FOR_BUILD="\$(LD)" 1266 NM_FOR_BUILD="\$(NM)" 1267 RANLIB_FOR_BUILD="\$(RANLIB)" 1268 WINDRES_FOR_BUILD="\$(WINDRES)" 1269 WINDMC_FOR_BUILD="\$(WINDMC)" 1270fi 1271 1272AC_PROG_CC 1273AC_PROG_CXX 1274 1275# We must set the default linker to the linker used by gcc for the correct 1276# operation of libtool. If LD is not defined and we are using gcc, try to 1277# set the LD default to the ld used by gcc. 1278if test -z "$LD"; then 1279 if test "$GCC" = yes; then 1280 case $build in 1281 *-*-mingw*) 1282 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;; 1283 *) 1284 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;; 1285 esac 1286 case $gcc_prog_ld in 1287 # Accept absolute paths. 1288 [[\\/]* | [A-Za-z]:[\\/]*)] 1289 LD="$gcc_prog_ld" ;; 1290 esac 1291 fi 1292fi 1293 1294# Check whether -static-libstdc++ -static-libgcc is supported. 1295have_static_libs=no 1296if test "$GCC" = yes; then 1297 saved_LDFLAGS="$LDFLAGS" 1298 1299 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc" 1300 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc]) 1301 AC_LANG_PUSH(C++) 1302 AC_LINK_IFELSE([ 1303#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5) 1304#error -static-libstdc++ not implemented 1305#endif 1306int main() {}], 1307 [AC_MSG_RESULT([yes]); have_static_libs=yes], 1308 [AC_MSG_RESULT([no])]) 1309 AC_LANG_POP(C++) 1310 1311 LDFLAGS="$saved_LDFLAGS" 1312fi 1313 1314ACX_PROG_GNAT 1315ACX_PROG_CMP_IGNORE_INITIAL 1316 1317AC_ARG_ENABLE([bootstrap], 1318[AS_HELP_STRING([--enable-bootstrap], 1319 [enable bootstrapping @<:@yes if native build@:>@])],, 1320enable_bootstrap=default) 1321 1322# Issue errors and warnings for invalid/strange bootstrap combinations. 1323if test -r $srcdir/gcc/configure; then 1324 have_compiler=yes 1325else 1326 have_compiler=no 1327fi 1328 1329case "$have_compiler:$host:$target:$enable_bootstrap" in 1330 *:*:*:no) ;; 1331 1332 # Default behavior. Enable bootstrap if we have a compiler 1333 # and we are in a native configuration. 1334 yes:$build:$build:default) 1335 enable_bootstrap=yes ;; 1336 1337 *:*:*:default) 1338 enable_bootstrap=no ;; 1339 1340 # We have a compiler and we are in a native configuration, bootstrap is ok 1341 yes:$build:$build:yes) 1342 ;; 1343 1344 # Other configurations, but we have a compiler. Assume the user knows 1345 # what he's doing. 1346 yes:*:*:yes) 1347 AC_MSG_WARN([trying to bootstrap a cross compiler]) 1348 ;; 1349 1350 # No compiler: if they passed --enable-bootstrap explicitly, fail 1351 no:*:*:yes) 1352 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;; 1353 1354 # Fail if wrong command line 1355 *) 1356 AC_MSG_ERROR([invalid option for --enable-bootstrap]) 1357 ;; 1358esac 1359 1360# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a 1361# C++98 compiler can still start the bootstrap. 1362if test "$enable_bootstrap:$GXX" = "yes:yes"; then 1363 CXX="$CXX -std=gnu++98" 1364fi 1365 1366# Used for setting $lt_cv_objdir 1367_LT_CHECK_OBJDIR 1368 1369# Check for GMP, MPFR and MPC 1370gmplibs="-lmpc -lmpfr -lgmp" 1371gmpinc= 1372have_gmp=no 1373 1374# Specify a location for mpc 1375# check for this first so it ends up on the link line before mpfr. 1376AC_ARG_WITH(mpc, 1377[AS_HELP_STRING([--with-mpc=PATH], 1378 [specify prefix directory for installed MPC package. 1379 Equivalent to --with-mpc-include=PATH/include 1380 plus --with-mpc-lib=PATH/lib])]) 1381AC_ARG_WITH(mpc-include, 1382[AS_HELP_STRING([--with-mpc-include=PATH], 1383 [specify directory for installed MPC include files])]) 1384AC_ARG_WITH(mpc-lib, 1385[AS_HELP_STRING([--with-mpc-lib=PATH], 1386 [specify directory for the installed MPC library])]) 1387 1388if test "x$with_mpc" != x; then 1389 gmplibs="-L$with_mpc/lib $gmplibs" 1390 gmpinc="-I$with_mpc/include $gmpinc" 1391fi 1392if test "x$with_mpc_include" != x; then 1393 gmpinc="-I$with_mpc_include $gmpinc" 1394fi 1395if test "x$with_mpc_lib" != x; then 1396 gmplibs="-L$with_mpc_lib $gmplibs" 1397fi 1398if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then 1399 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs" 1400 gmpinc='-I$$s/mpc/src '"$gmpinc" 1401 # Do not test the mpc version. Assume that it is sufficient, since 1402 # it is in the source tree, and the library has not been built yet 1403 # but it would be included on the link line in the version check below 1404 # hence making the test fail. 1405 have_gmp=yes 1406fi 1407 1408# Specify a location for mpfr 1409# check for this first so it ends up on the link line before gmp. 1410AC_ARG_WITH(mpfr-dir, 1411[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])], 1412[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed. 1413Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])]) 1414 1415AC_ARG_WITH(mpfr, 1416[AS_HELP_STRING([--with-mpfr=PATH], 1417 [specify prefix directory for installed MPFR package. 1418 Equivalent to --with-mpfr-include=PATH/include 1419 plus --with-mpfr-lib=PATH/lib])]) 1420AC_ARG_WITH(mpfr-include, 1421[AS_HELP_STRING([--with-mpfr-include=PATH], 1422 [specify directory for installed MPFR include files])]) 1423AC_ARG_WITH(mpfr-lib, 1424[AS_HELP_STRING([--with-mpfr-lib=PATH], 1425 [specify directory for the installed MPFR library])]) 1426 1427if test "x$with_mpfr" != x; then 1428 gmplibs="-L$with_mpfr/lib $gmplibs" 1429 gmpinc="-I$with_mpfr/include $gmpinc" 1430fi 1431if test "x$with_mpfr_include" != x; then 1432 gmpinc="-I$with_mpfr_include $gmpinc" 1433fi 1434if test "x$with_mpfr_lib" != x; then 1435 gmplibs="-L$with_mpfr_lib $gmplibs" 1436fi 1437if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then 1438 # MPFR v3.1.0 moved the sources into a src sub-directory. 1439 if ! test -d ${srcdir}/mpfr/src; then 1440 AC_MSG_ERROR([dnl 1441Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.]) 1442 fi 1443 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs" 1444 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc" 1445 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir" 1446 # Do not test the mpfr version. Assume that it is sufficient, since 1447 # it is in the source tree, and the library has not been built yet 1448 # but it would be included on the link line in the version check below 1449 # hence making the test fail. 1450 have_gmp=yes 1451fi 1452 1453# Specify a location for gmp 1454AC_ARG_WITH(gmp-dir, 1455[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])], 1456[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed. 1457Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])]) 1458 1459AC_ARG_WITH(gmp, 1460[AS_HELP_STRING([--with-gmp=PATH], 1461 [specify prefix directory for the installed GMP package. 1462 Equivalent to --with-gmp-include=PATH/include 1463 plus --with-gmp-lib=PATH/lib])]) 1464AC_ARG_WITH(gmp-include, 1465[AS_HELP_STRING([--with-gmp-include=PATH], 1466 [specify directory for installed GMP include files])]) 1467AC_ARG_WITH(gmp-lib, 1468[AS_HELP_STRING([--with-gmp-lib=PATH], 1469 [specify directory for the installed GMP library])]) 1470 1471 1472if test "x$with_gmp" != x; then 1473 gmplibs="-L$with_gmp/lib $gmplibs" 1474 gmpinc="-I$with_gmp/include $gmpinc" 1475fi 1476if test "x$with_gmp_include" != x; then 1477 gmpinc="-I$with_gmp_include $gmpinc" 1478fi 1479if test "x$with_gmp_lib" != x; then 1480 gmplibs="-L$with_gmp_lib $gmplibs" 1481fi 1482if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then 1483 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs" 1484 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc" 1485 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" 1486 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" 1487 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp' 1488 # Do not test the gmp version. Assume that it is sufficient, since 1489 # it is in the source tree, and the library has not been built yet 1490 # but it would be included on the link line in the version check below 1491 # hence making the test fail. 1492 have_gmp=yes 1493fi 1494 1495if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then 1496 have_gmp=yes 1497 saved_CFLAGS="$CFLAGS" 1498 CFLAGS="$CFLAGS $gmpinc" 1499 # Check for the recommended and required versions of GMP. 1500 AC_MSG_CHECKING([for the correct version of gmp.h]) 1501 AC_TRY_COMPILE([#include "gmp.h"],[ 1502 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) 1503 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) 1504 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3) 1505 choke me 1506 #endif 1507 ], [AC_TRY_COMPILE([#include <gmp.h>],[ 1508 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) 1509 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) 1510 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2) 1511 choke me 1512 #endif 1513 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1514 [AC_MSG_RESULT([no]); have_gmp=no]) 1515 1516 # If we have GMP, check the MPFR version. 1517 if test x"$have_gmp" = xyes; then 1518 # Check for the recommended and required versions of MPFR. 1519 AC_MSG_CHECKING([for the correct version of mpfr.h]) 1520 AC_TRY_COMPILE([#include <gmp.h> 1521 #include <mpfr.h>],[ 1522 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0) 1523 choke me 1524 #endif 1525 ], [AC_TRY_COMPILE([#include <gmp.h> 1526 #include <mpfr.h>],[ 1527 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2) 1528 choke me 1529 #endif 1530 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1531 [AC_MSG_RESULT([no]); have_gmp=no]) 1532 fi 1533 1534 # Check for the MPC header version. 1535 if test x"$have_gmp" = xyes ; then 1536 # Check for the recommended and required versions of MPC. 1537 AC_MSG_CHECKING([for the correct version of mpc.h]) 1538 AC_TRY_COMPILE([#include <mpc.h>],[ 1539 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0) 1540 choke me 1541 #endif 1542 ], [AC_TRY_COMPILE([#include <mpc.h>],[ 1543 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1) 1544 choke me 1545 #endif 1546 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], 1547 [AC_MSG_RESULT([no]); have_gmp=no]) 1548 fi 1549 1550 # Now check the MPFR library. 1551 if test x"$have_gmp" = xyes; then 1552 saved_LIBS="$LIBS" 1553 LIBS="$LIBS $gmplibs" 1554 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries]) 1555 AC_TRY_LINK([#include <mpc.h>],[ 1556 mpfr_t n; 1557 mpfr_t x; 1558 mpc_t c; 1559 int t; 1560 mpfr_init (n); 1561 mpfr_init (x); 1562 mpfr_atan2 (n, n, x, GMP_RNDN); 1563 mpfr_erfc (n, x, GMP_RNDN); 1564 mpfr_subnormalize (x, t, GMP_RNDN); 1565 mpfr_clear(n); 1566 mpfr_clear(x); 1567 mpc_init2 (c, 53); 1568 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN); 1569 mpc_cosh (c, c, MPC_RNDNN); 1570 mpc_pow (c, c, c, MPC_RNDNN); 1571 mpc_acosh (c, c, MPC_RNDNN); 1572 mpc_clear (c); 1573 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no]) 1574 LIBS="$saved_LIBS" 1575 fi 1576 1577 CFLAGS="$saved_CFLAGS" 1578 1579# The library versions listed in the error message below should match 1580# the HARD-minimums enforced above. 1581 if test x$have_gmp != xyes; then 1582 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+. 1583Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify 1584their locations. Source code for these libraries can be found at 1585their respective hosting sites as well as at 1586ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also 1587http://gcc.gnu.org/install/prerequisites.html for additional info. If 1588you obtained GMP, MPFR and/or MPC from a vendor distribution package, 1589make sure that you have installed both the libraries and the header 1590files. They may be located in separate packages.]) 1591 fi 1592fi 1593 1594# Flags needed for both GMP, MPFR and/or MPC. 1595AC_SUBST(gmplibs) 1596AC_SUBST(gmpinc) 1597AC_SUBST(extra_mpfr_configure_flags) 1598AC_SUBST(extra_mpc_gmp_configure_flags) 1599AC_SUBST(extra_mpc_mpfr_configure_flags) 1600AC_SUBST(extra_isl_gmp_configure_flags) 1601 1602# Libraries to use for stage1 or when not bootstrapping. 1603AC_ARG_WITH(stage1-libs, 1604[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])], 1605[if test "$withval" = "no" -o "$withval" = "yes"; then 1606 stage1_libs= 1607 else 1608 stage1_libs=$withval 1609 fi], 1610[stage1_libs=]) 1611AC_SUBST(stage1_libs) 1612 1613# Linker flags to use for stage1 or when not bootstrapping. 1614AC_ARG_WITH(stage1-ldflags, 1615[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])], 1616[if test "$withval" = "no" -o "$withval" = "yes"; then 1617 stage1_ldflags= 1618 else 1619 stage1_ldflags=$withval 1620 fi], 1621[stage1_ldflags= 1622 # In stage 1, default to linking libstdc++ and libgcc statically with GCC 1623 # if supported. But if the user explicitly specified the libraries to use, 1624 # trust that they are doing what they want. 1625 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then 1626 stage1_ldflags="-static-libstdc++ -static-libgcc" 1627 fi]) 1628AC_SUBST(stage1_ldflags) 1629 1630# Libraries to use for stage2 and later builds. 1631AC_ARG_WITH(boot-libs, 1632[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])], 1633[if test "$withval" = "no" -o "$withval" = "yes"; then 1634 poststage1_libs= 1635 else 1636 poststage1_libs=$withval 1637 fi], 1638[poststage1_libs=]) 1639AC_SUBST(poststage1_libs) 1640 1641# Linker flags to use for stage2 and later builds. 1642AC_ARG_WITH(boot-ldflags, 1643[AS_HELP_STRING([--with-boot-ldflags=FLAGS], 1644 [linker flags for stage2 and later])], 1645[if test "$withval" = "no" -o "$withval" = "yes"; then 1646 poststage1_ldflags= 1647 else 1648 poststage1_ldflags=$withval 1649 fi], 1650[poststage1_ldflags= 1651 # In stages 2 and 3, default to linking libstdc++ and libgcc 1652 # statically. But if the user explicitly specified the libraries to 1653 # use, trust that they are doing what they want. 1654 if test "$poststage1_libs" = ""; then 1655 poststage1_ldflags="-static-libstdc++ -static-libgcc" 1656 fi]) 1657AC_SUBST(poststage1_ldflags) 1658 1659# GCC GRAPHITE dependency isl. 1660# Basic setup is inlined here, actual checks are in config/isl.m4 1661 1662AC_ARG_WITH(isl, 1663 [AS_HELP_STRING( 1664 [--with-isl=PATH], 1665 [Specify prefix directory for the installed isl package. 1666 Equivalent to --with-isl-include=PATH/include 1667 plus --with-isl-lib=PATH/lib])]) 1668 1669# Treat --without-isl as a request to disable 1670# GRAPHITE support and skip all following checks. 1671if test "x$with_isl" != "xno"; then 1672 # Check for isl 1673 dnl Provide configure switches and initialize islinc & isllibs 1674 dnl with user input. 1675 ISL_INIT_FLAGS 1676 dnl The versions of isl that work for Graphite 1677 ISL_CHECK_VERSION() 1678 dnl Only execute fail-action, if isl has been requested. 1679 ISL_IF_FAILED([ 1680 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])]) 1681fi 1682 1683# If the isl check failed, disable builds of in-tree variant of isl 1684if test "x$with_isl" = xno || 1685 test "x$gcc_cv_isl" = xno; then 1686 noconfigdirs="$noconfigdirs isl" 1687 islinc= 1688fi 1689 1690AC_SUBST(isllibs) 1691AC_SUBST(islinc) 1692 1693# Check for LTO support. 1694AC_ARG_ENABLE(lto, 1695[AS_HELP_STRING([--enable-lto], [enable link time optimization support])], 1696enable_lto=$enableval, 1697enable_lto=yes; default_enable_lto=yes) 1698 1699ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always. 1700 build_lto_plugin=yes 1701],[if test x"$default_enable_lto" = x"yes" ; then 1702 case $target in 1703 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;; 1704 # On other non-ELF platforms, LTO has yet to be validated. 1705 *) enable_lto=no ;; 1706 esac 1707 else 1708 # Apart from ELF platforms, only Windows and Darwin support LTO so far. 1709 # It would also be nice to check the binutils support, but we don't 1710 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just 1711 # warn during gcc/ subconfigure; unless you're bootstrapping with 1712 # -flto it won't be needed until after installation anyway. 1713 case $target in 1714 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;; 1715 *) if test x"$enable_lto" = x"yes"; then 1716 AC_MSG_ERROR([LTO support is not enabled for this target.]) 1717 fi 1718 ;; 1719 esac 1720 fi 1721 # Among non-ELF, only Windows platforms support the lto-plugin so far. 1722 # Build it unless LTO was explicitly disabled. 1723 case $target in 1724 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;; 1725 *) ;; 1726 esac 1727]) 1728 1729AC_ARG_ENABLE(linker-plugin-configure-flags, 1730 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]], 1731 [additional flags for configuring linker plugins @<:@none@:>@])], 1732 extra_linker_plugin_configure_flags=$enableval, 1733 extra_linker_plugin_configure_flags=) 1734AC_SUBST(extra_linker_plugin_configure_flags) 1735AC_ARG_ENABLE(linker-plugin-flags, 1736 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]], 1737 [additional flags for configuring and building linker plugins @<:@none@:>@])], 1738 extra_linker_plugin_flags=$enableval, 1739 extra_linker_plugin_flags=) 1740AC_SUBST(extra_linker_plugin_flags) 1741 1742# Enable --enable-host-shared. 1743# Checked early to determine whether jit is an 'all' language 1744AC_ARG_ENABLE(host-shared, 1745[AS_HELP_STRING([--enable-host-shared], 1746 [build host code as shared libraries])], 1747[host_shared=$enableval], [host_shared=no]) 1748AC_SUBST(host_shared) 1749 1750# By default, C and C++ are the only stage 1 languages. 1751stage1_languages=,c, 1752 1753# Target libraries that we bootstrap. 1754bootstrap_target_libs=,target-libgcc, 1755 1756# Figure out what language subdirectories are present. 1757# Look if the user specified --enable-languages="..."; if not, use 1758# the environment variable $LANGUAGES if defined. $LANGUAGES might 1759# go away some day. 1760# NB: embedded tabs in this IF block -- do not untabify 1761if test -d ${srcdir}/gcc; then 1762 if test x"${enable_languages+set}" != xset; then 1763 if test x"${LANGUAGES+set}" = xset; then 1764 enable_languages="${LANGUAGES}" 1765 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2 1766 else 1767 enable_languages=default 1768 fi 1769 else 1770 if test x"${enable_languages}" = x || 1771 test x"${enable_languages}" = xyes; 1772 then 1773 echo configure.ac: --enable-languages needs at least one language argument 1>&2 1774 exit 1 1775 fi 1776 fi 1777 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'` 1778 1779 # 'f95' is the old name for the 'fortran' language. We issue a warning 1780 # and make the substitution. 1781 case ,${enable_languages}, in 1782 *,f95,*) 1783 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2 1784 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'` 1785 ;; 1786 esac 1787 1788 # If bootstrapping, C++ must be enabled. 1789 case ",$enable_languages,:$enable_bootstrap" in 1790 *,c++,*:*) ;; 1791 *:yes) 1792 if test -f ${srcdir}/gcc/cp/config-lang.in; then 1793 enable_languages="${enable_languages},c++" 1794 else 1795 AC_MSG_ERROR([bootstrapping requires c++ sources]) 1796 fi 1797 ;; 1798 esac 1799 1800 # First scan to see if an enabled language requires some other language. 1801 # We assume that a given config-lang.in will list all the language 1802 # front ends it requires, even if some are required indirectly. 1803 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do 1804 case ${lang_frag} in 1805 ..) ;; 1806 # The odd quoting in the next line works around 1807 # an apparent bug in bash 1.12 on linux. 1808 ${srcdir}/gcc/[[*]]/config-lang.in) ;; 1809 *) 1810 # From the config-lang.in, get $language, $lang_requires, and 1811 # $lang_requires_boot_languages. 1812 language= 1813 lang_requires= 1814 lang_requires_boot_languages= 1815 # set srcdir during sourcing lang_frag to the gcc dir. 1816 # Sadly overriding srcdir on the . line doesn't work in plain sh as it 1817 # polutes this shell 1818 saved_srcdir=${srcdir} 1819 srcdir=${srcdir}/gcc . ${lang_frag} 1820 srcdir=${saved_srcdir} 1821 for other in ${lang_requires} ${lang_requires_boot_languages}; do 1822 case ,${enable_languages}, in 1823 *,$other,*) ;; 1824 *,default,*) ;; 1825 *,all,*) ;; 1826 *,$language,*) 1827 echo " \`$other' language required by \`$language'; enabling" 1>&2 1828 enable_languages="${enable_languages},${other}" 1829 ;; 1830 esac 1831 done 1832 for other in ${lang_requires_boot_languages} ; do 1833 if test "$other" != "c"; then 1834 case ,${enable_stage1_languages}, in 1835 *,$other,*) ;; 1836 *,default,*) ;; 1837 *,all,*) ;; 1838 *) 1839 case ,${enable_languages}, in 1840 *,$language,*) 1841 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2 1842 enable_stage1_languages="$enable_stage1_languages,${other}" 1843 ;; 1844 esac 1845 ;; 1846 esac 1847 fi 1848 done 1849 ;; 1850 esac 1851 done 1852 1853 new_enable_languages=,c, 1854 1855 # If LTO is enabled, add the LTO front end. 1856 if test "$enable_lto" = "yes" ; then 1857 case ,${enable_languages}, in 1858 *,lto,*) ;; 1859 *) enable_languages="${enable_languages},lto" ;; 1860 esac 1861 if test "${build_lto_plugin}" = "yes" ; then 1862 configdirs="$configdirs lto-plugin" 1863 fi 1864 fi 1865 1866 # If we're building an offloading compiler, add the LTO front end. 1867 if test x"$enable_as_accelerator_for" != x ; then 1868 case ,${enable_languages}, in 1869 *,lto,*) ;; 1870 *) enable_languages="${enable_languages},lto" ;; 1871 esac 1872 fi 1873 1874 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ ` 1875 potential_languages=,c, 1876 1877 enabled_target_libs= 1878 disabled_target_libs= 1879 1880 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do 1881 case ${lang_frag} in 1882 ..) ;; 1883 # The odd quoting in the next line works around 1884 # an apparent bug in bash 1.12 on linux. 1885 ${srcdir}/gcc/[[*]]/config-lang.in) ;; 1886 *) 1887 # From the config-lang.in, get $language, $target_libs, 1888 # $lang_dirs, $boot_language, and $build_by_default 1889 language= 1890 target_libs= 1891 lang_dirs= 1892 subdir_requires= 1893 boot_language=no 1894 build_by_default=yes 1895 # set srcdir during sourcing. See above about save & restore 1896 saved_srcdir=${srcdir} 1897 srcdir=${srcdir}/gcc . ${lang_frag} 1898 srcdir=${saved_srcdir} 1899 if test x${language} = x; then 1900 echo "${lang_frag} doesn't set \$language." 1>&2 1901 exit 1 1902 fi 1903 1904 if test "$language" = "c++"; then 1905 boot_language=yes 1906 fi 1907 1908 add_this_lang=no 1909 # C is always enabled, so no need to add it again 1910 if test "$language" != "c"; then 1911 case ,${enable_languages}, in 1912 *,${language},*) 1913 # Language was explicitly selected; include it 1914 add_this_lang=yes 1915 ;; 1916 *,all,*) 1917 # All languages are enabled 1918 add_this_lang=all 1919 ;; 1920 *,default,*) 1921 # 'default' was selected, select it if it is a default language 1922 add_this_lang=${build_by_default} 1923 ;; 1924 esac 1925 fi 1926 1927 # Disable languages that need other directories if these aren't available. 1928 for i in $subdir_requires; do 1929 test -f "$srcdir/gcc/$i/config-lang.in" && continue 1930 case ${add_this_lang} in 1931 yes) 1932 # Specifically requested language; tell them. 1933 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing]) 1934 ;; 1935 all) 1936 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing]) 1937 add_this_lang=unsupported 1938 ;; 1939 *) 1940 # Silently disable. 1941 add_this_lang=unsupported 1942 ;; 1943 esac 1944 done 1945 1946 # Disable Ada if no preexisting GNAT is available. 1947 case ${add_this_lang}:${language}:${have_gnat} in 1948 yes:ada:no) 1949 # Specifically requested language; tell them. 1950 AC_MSG_ERROR([GNAT is required to build $language]) 1951 ;; 1952 all:ada:no) 1953 AC_MSG_WARN([GNAT is required to build $language]) 1954 add_this_lang=unsupported 1955 ;; 1956 *:ada:no) 1957 # Silently disable. 1958 add_this_lang=unsupported 1959 ;; 1960 esac 1961 1962 # Disable jit if -enable-host-shared not specified 1963 case ${add_this_lang}:${language}:${host_shared} in 1964 yes:jit:no) 1965 # PR jit/64780: explicitly specify --enable-host-shared 1966 AC_MSG_ERROR([ 1967Enabling language "jit" requires --enable-host-shared. 1968 1969--enable-host-shared typically slows the rest of the compiler down by 1970a few %, so you must explicitly enable it. 1971 1972If you want to build both the jit and the regular compiler, it is often 1973best to do this via two separate configure/builds, in separate 1974directories, to avoid imposing the performance cost of 1975--enable-host-shared on the regular compiler.]) 1976 ;; 1977 all:jit:no) 1978 AC_MSG_WARN([--enable-host-shared required to build $language]) 1979 add_this_lang=unsupported 1980 ;; 1981 *:jit:no) 1982 # Silently disable. 1983 add_this_lang=unsupported 1984 ;; 1985 esac 1986 1987 # Disable a language that is unsupported by the target. 1988 case "${add_this_lang}: $unsupported_languages " in 1989 no:*) ;; 1990 unsupported:*) ;; 1991 *:*" $language "*) 1992 AC_MSG_WARN([${language} not supported for this target]) 1993 add_this_lang=unsupported 1994 ;; 1995 esac 1996 1997 case $add_this_lang in 1998 unsupported) 1999 # Remove language-dependent dirs. 2000 disabled_target_libs="$disabled_target_libs $target_libs" 2001 noconfigdirs="$noconfigdirs $lang_dirs" 2002 ;; 2003 no) 2004 # Remove language-dependent dirs; still show language as supported. 2005 disabled_target_libs="$disabled_target_libs $target_libs" 2006 noconfigdirs="$noconfigdirs $lang_dirs" 2007 potential_languages="${potential_languages}${language}," 2008 ;; 2009 all|yes) 2010 new_enable_languages="${new_enable_languages}${language}," 2011 potential_languages="${potential_languages}${language}," 2012 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"` 2013 enabled_target_libs="$enabled_target_libs $target_libs" 2014 case "${boot_language}:,$enable_stage1_languages," in 2015 yes:* | *:*,$language,* | *:*,yes, | *:*,all,) 2016 # Add to (comma-separated) list of stage 1 languages. 2017 case ",$stage1_languages," in 2018 *,$language,* | ,yes, | ,all,) ;; 2019 *) stage1_languages="${stage1_languages}${language}," ;; 2020 esac 2021 # We need to bootstrap any supporting libraries. 2022 bootstrap_target_libs="${bootstrap_target_libs}${target_libs}," 2023 ;; 2024 esac 2025 ;; 2026 esac 2027 ;; 2028 esac 2029 done 2030 2031 # Add target libraries which are only needed for disabled languages 2032 # to noconfigdirs. 2033 if test -n "$disabled_target_libs"; then 2034 for dir in $disabled_target_libs; do 2035 case " $enabled_target_libs " in 2036 *" ${dir} "*) ;; 2037 *) noconfigdirs="$noconfigdirs $dir" ;; 2038 esac 2039 done 2040 fi 2041 2042 AC_ARG_ENABLE(stage1-languages, 2043 [AS_HELP_STRING([[--enable-stage1-languages[=all]]], 2044 [choose additional languages to build during 2045 stage1. Mostly useful for compiler development])], 2046 [case ,${enable_stage1_languages}, in 2047 ,no,|,,) 2048 # Set it to something that will have no effect in the loop below 2049 enable_stage1_languages=c ;; 2050 ,yes,) 2051 enable_stage1_languages=`echo $new_enable_languages | \ 2052 sed -e "s/^,//" -e "s/,$//" ` ;; 2053 *,all,*) 2054 enable_stage1_languages=`echo ,$enable_stage1_languages, | \ 2055 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;; 2056 esac 2057 2058 # Add "good" languages from enable_stage1_languages to stage1_languages, 2059 # while "bad" languages go in missing_languages. Leave no duplicates. 2060 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do 2061 case $potential_languages in 2062 *,$i,*) 2063 case $stage1_languages in 2064 *,$i,*) ;; 2065 *) stage1_languages="$stage1_languages$i," ;; 2066 esac ;; 2067 *) 2068 case $missing_languages in 2069 *,$i,*) ;; 2070 *) missing_languages="$missing_languages$i," ;; 2071 esac ;; 2072 esac 2073 done]) 2074 2075 # Remove leading/trailing commas that were added for simplicity 2076 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"` 2077 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"` 2078 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"` 2079 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"` 2080 2081 if test "x$missing_languages" != x; then 2082 AC_MSG_ERROR([ 2083The following requested languages could not be built: ${missing_languages} 2084Supported languages are: ${potential_languages}]) 2085 fi 2086 if test "x$new_enable_languages" != "x$enable_languages"; then 2087 echo The following languages will be built: ${new_enable_languages} 2088 enable_languages="$new_enable_languages" 2089 fi 2090 2091 AC_SUBST(stage1_languages) 2092 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" ` 2093fi 2094 2095# Handle --disable-<component> generically. 2096for dir in $configdirs $build_configdirs $target_configdirs ; do 2097 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g` 2098 varname=`echo $dirname | sed -e s/+/_/g` 2099 if eval test x\${enable_${varname}} "=" xno ; then 2100 noconfigdirs="$noconfigdirs $dir" 2101 fi 2102done 2103 2104# Check for Boehm's garbage collector 2105AC_ARG_ENABLE(objc-gc, 2106[AS_HELP_STRING([--enable-objc-gc], 2107 [enable use of Boehm's garbage collector with the 2108 GNU Objective-C runtime])]) 2109AC_ARG_WITH([target-bdw-gc], 2110[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST], 2111 [specify prefix directory for installed bdw-gc package. 2112 Equivalent to --with-target-bdw-gc-include=PATH/include 2113 plus --with-target-bdw-gc-lib=PATH/lib])]) 2114AC_ARG_WITH([target-bdw-gc-include], 2115[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST], 2116 [specify directories for installed bdw-gc include files])]) 2117AC_ARG_WITH([target-bdw-gc-lib], 2118[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST], 2119 [specify directories for installed bdw-gc library])]) 2120 2121case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto) 2122 AC_MSG_CHECKING([for bdw garbage collector]) 2123 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then 2124 dnl no bdw-gw options, assume default locations 2125 AC_MSG_RESULT([using bdw-gc in default locations]) 2126 else 2127 dnl bdw-gw options, first error checking, complete checking in libobjc 2128 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then 2129 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing]) 2130 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then 2131 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing]) 2132 else 2133 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options]) 2134 fi 2135 fi 2136esac 2137 2138# Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++ 2139case ,${enable_languages}, in 2140 *,c++,*) 2141 # Disable libitm, libsanitizer if we're not building libstdc++ 2142 case "${noconfigdirs}" in 2143 *target-libstdc++-v3*) 2144 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer" 2145 ;; 2146 *) ;; 2147 esac 2148 ;; 2149 *) 2150 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv" 2151 ;; 2152esac 2153 2154# Remove the entries in $skipdirs and $noconfigdirs from $configdirs, 2155# $build_configdirs and $target_configdirs. 2156# If we have the source for $noconfigdirs entries, add them to $notsupp. 2157 2158notsupp="" 2159for dir in . $skipdirs $noconfigdirs ; do 2160 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g` 2161 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2162 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"` 2163 if test -r $srcdir/$dirname/configure ; then 2164 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2165 true 2166 else 2167 notsupp="$notsupp $dir" 2168 fi 2169 fi 2170 fi 2171 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2172 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"` 2173 if test -r $srcdir/$dirname/configure ; then 2174 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2175 true 2176 else 2177 notsupp="$notsupp $dir" 2178 fi 2179 fi 2180 fi 2181 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2182 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"` 2183 if test -r $srcdir/$dirname/configure ; then 2184 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2185 true 2186 else 2187 notsupp="$notsupp $dir" 2188 fi 2189 fi 2190 fi 2191done 2192 2193# Quietly strip out all directories which aren't configurable in this tree. 2194# This relies on all configurable subdirectories being autoconfiscated, which 2195# is now the case. 2196build_configdirs_all="$build_configdirs" 2197build_configdirs= 2198for i in ${build_configdirs_all} ; do 2199 j=`echo $i | sed -e s/build-//g` 2200 if test -f ${srcdir}/$j/configure ; then 2201 build_configdirs="${build_configdirs} $i" 2202 fi 2203done 2204 2205configdirs_all="$configdirs" 2206configdirs= 2207for i in ${configdirs_all} ; do 2208 if test -f ${srcdir}/$i/configure ; then 2209 configdirs="${configdirs} $i" 2210 fi 2211done 2212 2213target_configdirs_all="$target_configdirs" 2214target_configdirs= 2215for i in ${target_configdirs_all} ; do 2216 j=`echo $i | sed -e s/target-//g` 2217 if test -f ${srcdir}/$j/configure ; then 2218 target_configdirs="${target_configdirs} $i" 2219 fi 2220done 2221 2222# libiberty-linker-plugin is special: it doesn't have its own source directory, 2223# so we have to add it after the preceding checks. 2224if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x 2225then 2226 case " $configdirs " in 2227 *" libiberty "*) 2228 # If we can build libiberty, we can also build libiberty-linker-plugin. 2229 configdirs="$configdirs libiberty-linker-plugin" 2230 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \ 2231 --with-libiberty=../libiberty-linker-plugin";; 2232 *) 2233 AC_MSG_ERROR([libiberty missing]);; 2234 esac 2235fi 2236 2237# Sometimes we have special requirements for the host libiberty. 2238extra_host_libiberty_configure_flags= 2239extra_host_zlib_configure_flags= 2240case " $configdirs " in 2241 *" lto-plugin "* | *" libcc1 "*) 2242 # When these are to be built as shared libraries, the same applies to 2243 # libiberty. 2244 extra_host_libiberty_configure_flags=--enable-shared 2245 ;; 2246 *" bfd "*) 2247 # When bfd is to be built as a shared library, the same applies to 2248 # zlib. 2249 if test "$enable_shared" = "yes"; then 2250 extra_host_zlib_configure_flags=--enable-host-shared 2251 fi 2252 ;; 2253esac 2254AC_SUBST(extra_host_libiberty_configure_flags) 2255AC_SUBST(extra_host_zlib_configure_flags) 2256 2257# Produce a warning message for the subdirs we can't configure. 2258# This isn't especially interesting in the Cygnus tree, but in the individual 2259# FSF releases, it's important to let people know when their machine isn't 2260# supported by the one or two programs in a package. 2261 2262if test -n "${notsupp}" && test -z "${norecursion}" ; then 2263 # If $appdirs is non-empty, at least one of those directories must still 2264 # be configured, or we error out. (E.g., if the gas release supports a 2265 # specified target in some subdirs but not the gas subdir, we shouldn't 2266 # pretend that all is well.) 2267 if test -n "$appdirs" ; then 2268 for dir in $appdirs ; do 2269 if test -r $dir/Makefile.in ; then 2270 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then 2271 appdirs="" 2272 break 2273 fi 2274 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then 2275 appdirs="" 2276 break 2277 fi 2278 fi 2279 done 2280 if test -n "$appdirs" ; then 2281 echo "*** This configuration is not supported by this package." 1>&2 2282 exit 1 2283 fi 2284 fi 2285 # Okay, some application will build, or we don't care to check. Still 2286 # notify of subdirs not getting built. 2287 echo "*** This configuration is not supported in the following subdirectories:" 1>&2 2288 echo " ${notsupp}" 1>&2 2289 echo " (Any other directories should still work fine.)" 1>&2 2290fi 2291 2292case "$host" in 2293 *msdosdjgpp*) 2294 enable_gdbtk=no ;; 2295esac 2296 2297# To find our prefix, in gcc_cv_tool_prefix. 2298ACX_TOOL_DIRS 2299 2300copy_dirs= 2301 2302AC_ARG_WITH([build-sysroot], 2303 [AS_HELP_STRING([--with-build-sysroot=SYSROOT], 2304 [use sysroot as the system root during the build])], 2305 [if test x"$withval" != x ; then 2306 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval" 2307 fi], 2308 [SYSROOT_CFLAGS_FOR_TARGET=]) 2309AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET) 2310 2311AC_ARG_WITH([debug-prefix-map], 2312 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'], 2313 [map A to B, C to D ... in debug information])], 2314 [if test x"$withval" != x; then 2315 DEBUG_PREFIX_CFLAGS_FOR_TARGET= 2316 for debug_map in $withval; do 2317 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map" 2318 done 2319 fi], 2320 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=]) 2321AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET) 2322 2323# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS 2324# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS 2325# might also be empty (or "-g", if a non-GCC C++ compiler is in the path). 2326# We want to ensure that TARGET libraries (which we know are built with 2327# gcc) are built with "-O2 -g", so include those options when setting 2328# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET. 2329if test "x$CFLAGS_FOR_TARGET" = x; then 2330 if test "x${is_cross_compiler}" = xyes; then 2331 CFLAGS_FOR_TARGET="-g -O2" 2332 else 2333 CFLAGS_FOR_TARGET=$CFLAGS 2334 case " $CFLAGS " in 2335 *" -O2 "*) ;; 2336 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;; 2337 esac 2338 case " $CFLAGS " in 2339 *" -g "* | *" -g3 "*) ;; 2340 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;; 2341 esac 2342 fi 2343fi 2344AC_SUBST(CFLAGS_FOR_TARGET) 2345 2346if test "x$CXXFLAGS_FOR_TARGET" = x; then 2347 if test "x${is_cross_compiler}" = xyes; then 2348 CXXFLAGS_FOR_TARGET="-g -O2" 2349 else 2350 CXXFLAGS_FOR_TARGET=$CXXFLAGS 2351 case " $CXXFLAGS " in 2352 *" -O2 "*) ;; 2353 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;; 2354 esac 2355 case " $CXXFLAGS " in 2356 *" -g "* | *" -g3 "*) ;; 2357 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;; 2358 esac 2359 fi 2360fi 2361AC_SUBST(CXXFLAGS_FOR_TARGET) 2362 2363AC_SUBST(LDFLAGS_FOR_TARGET) 2364 2365# Handle --with-headers=XXX. If the value is not "yes", the contents of 2366# the named directory are copied to $(tooldir)/sys-include. 2367if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then 2368 if test x${is_cross_compiler} = xno ; then 2369 echo 1>&2 '***' --with-headers is only supported when cross compiling 2370 exit 1 2371 fi 2372 if test x"${with_headers}" != xyes ; then 2373 x=${gcc_cv_tool_prefix} 2374 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include" 2375 fi 2376fi 2377 2378# Handle --with-libs=XXX. If the value is not "yes", the contents of 2379# the name directories are copied to $(tooldir)/lib. Multiple directories 2380# are permitted. 2381if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then 2382 if test x${is_cross_compiler} = xno ; then 2383 echo 1>&2 '***' --with-libs is only supported when cross compiling 2384 exit 1 2385 fi 2386 if test x"${with_libs}" != xyes ; then 2387 # Copy the libraries in reverse order, so that files in the first named 2388 # library override files in subsequent libraries. 2389 x=${gcc_cv_tool_prefix} 2390 for l in ${with_libs}; do 2391 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}" 2392 done 2393 fi 2394fi 2395 2396# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate. 2397# 2398# This is done by determining whether or not the appropriate directory 2399# is available, and by checking whether or not specific configurations 2400# have requested that this magic not happen. 2401# 2402# The command line options always override the explicit settings in 2403# configure.ac, and the settings in configure.ac override this magic. 2404# 2405# If the default for a toolchain is to use GNU as and ld, and you don't 2406# want to do that, then you should use the --without-gnu-as and 2407# --without-gnu-ld options for the configure script. Similarly, if 2408# the default is to use the included zlib and you don't want to do that, 2409# you should use the --with-system-zlib option for the configure script. 2410 2411if test x${use_gnu_as} = x && 2412 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then 2413 with_gnu_as=yes 2414 extra_host_args="$extra_host_args --with-gnu-as" 2415fi 2416 2417if test x${use_gnu_ld} = x && 2418 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then 2419 with_gnu_ld=yes 2420 extra_host_args="$extra_host_args --with-gnu-ld" 2421fi 2422 2423if test x${use_included_zlib} = x && 2424 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then 2425 : 2426else 2427 with_system_zlib=yes 2428 extra_host_args="$extra_host_args --with-system-zlib" 2429fi 2430 2431# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure 2432# can detect this case. 2433 2434if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then 2435 with_newlib=yes 2436 extra_host_args="$extra_host_args --with-newlib" 2437fi 2438 2439# Handle ${copy_dirs} 2440set fnord ${copy_dirs} 2441shift 2442while test $# != 0 ; do 2443 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then 2444 : 2445 else 2446 echo Copying $1 to $2 2447 2448 # Use the install script to create the directory and all required 2449 # parent directories. 2450 if test -d $2 ; then 2451 : 2452 else 2453 echo >config.temp 2454 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED 2455 fi 2456 2457 # Copy the directory, assuming we have tar. 2458 # FIXME: Should we use B in the second tar? Not all systems support it. 2459 (cd $1; tar -cf - .) | (cd $2; tar -xpf -) 2460 2461 # It is the responsibility of the user to correctly adjust all 2462 # symlinks. If somebody can figure out how to handle them correctly 2463 # here, feel free to add the code. 2464 2465 echo $1 > $2/COPIED 2466 fi 2467 shift; shift 2468done 2469 2470# Determine a target-dependent exec_prefix that the installed 2471# gcc will search in. Keep this list sorted by triplet, with 2472# the *-*-osname triplets last. 2473md_exec_prefix= 2474case "${target}" in 2475 i[[34567]]86-pc-msdosdjgpp*) 2476 md_exec_prefix=/dev/env/DJDIR/bin 2477 ;; 2478 *-*-hpux* | \ 2479 *-*-nto-qnx* | \ 2480 *-*-solaris2*) 2481 md_exec_prefix=/usr/ccs/bin 2482 ;; 2483esac 2484 2485extra_arflags_for_target= 2486extra_nmflags_for_target= 2487extra_ranlibflags_for_target= 2488target_makefile_frag=/dev/null 2489case "${target}" in 2490 spu-*-*) 2491 target_makefile_frag="config/mt-spu" 2492 ;; 2493 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) 2494 target_makefile_frag="config/mt-sde" 2495 ;; 2496 mipsisa*-*-elfoabi*) 2497 target_makefile_frag="config/mt-mips-elfoabi" 2498 ;; 2499 mips*-*-*linux* | mips*-*-gnu*) 2500 target_makefile_frag="config/mt-mips-gnu" 2501 ;; 2502 nios2-*-elf*) 2503 target_makefile_frag="config/mt-nios2-elf" 2504 ;; 2505 *-*-linux-android*) 2506 target_makefile_frag="config/mt-android" 2507 ;; 2508 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) 2509 target_makefile_frag="config/mt-gnu" 2510 ;; 2511 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*) 2512 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm 2513 # commands to handle both 32-bit and 64-bit objects. These flags are 2514 # harmless if we're using GNU nm or ar. 2515 extra_arflags_for_target=" -X32_64" 2516 extra_nmflags_for_target=" -B -X32_64" 2517 ;; 2518esac 2519 2520alphaieee_frag=/dev/null 2521case $target in 2522 alpha*-*-*) 2523 # This just makes sure to use the -mieee option to build target libs. 2524 # This should probably be set individually by each library. 2525 alphaieee_frag="config/mt-alphaieee" 2526 ;; 2527esac 2528 2529# If --enable-target-optspace always use -Os instead of -O2 to build 2530# the target libraries, similarly if it is not specified, use -Os 2531# on selected platforms. 2532ospace_frag=/dev/null 2533case "${enable_target_optspace}:${target}" in 2534 yes:*) 2535 ospace_frag="config/mt-ospace" 2536 ;; 2537 :d30v-*) 2538 ospace_frag="config/mt-d30v" 2539 ;; 2540 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu) 2541 ospace_frag="config/mt-ospace" 2542 ;; 2543 no:* | :*) 2544 ;; 2545 *) 2546 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2 2547 ;; 2548esac 2549 2550# Some systems (e.g., one of the i386-aix systems the gas testers are 2551# using) don't handle "\$" correctly, so don't use it here. 2552tooldir='${exec_prefix}'/${target_noncanonical} 2553build_tooldir=${tooldir} 2554 2555# Create a .gdbinit file which runs the one in srcdir 2556# and tells GDB to look there for source files. 2557 2558if test -r ${srcdir}/.gdbinit ; then 2559 case ${srcdir} in 2560 .) ;; 2561 *) cat > ./.gdbinit <<EOF 2562# ${NO_EDIT} 2563dir ${srcdir} 2564dir . 2565source ${srcdir}/.gdbinit 2566EOF 2567 ;; 2568 esac 2569fi 2570 2571# Make sure that the compiler is able to generate an executable. If it 2572# can't, we are probably in trouble. We don't care whether we can run the 2573# executable--we might be using a cross compiler--we only care whether it 2574# can be created. At this point the main configure script has set CC. 2575we_are_ok=no 2576echo "int main () { return 0; }" > conftest.c 2577${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c 2578if test $? = 0 ; then 2579 if test -s conftest || test -s conftest.exe ; then 2580 we_are_ok=yes 2581 fi 2582fi 2583case $we_are_ok in 2584 no) 2585 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed." 2586 echo 1>&2 "*** You must set the environment variable CC to a working compiler." 2587 rm -f conftest* 2588 exit 1 2589 ;; 2590esac 2591rm -f conftest* 2592 2593# Decide which environment variable is used to find dynamic libraries. 2594case "${host}" in 2595 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;; 2596 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;; 2597 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;; 2598 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;; 2599esac 2600 2601# On systems where the dynamic library environment variable is PATH, 2602# gcc/ will put dynamic libraries into a subdirectory to avoid adding 2603# built executables to PATH. 2604if test "$RPATH_ENVVAR" = PATH; then 2605 GCC_SHLIB_SUBDIR=/shlib 2606else 2607 GCC_SHLIB_SUBDIR= 2608fi 2609 2610# Adjust the toplevel makefile according to whether bootstrap was selected. 2611case $enable_bootstrap in 2612 yes) 2613 bootstrap_suffix=bootstrap 2614 BUILD_CONFIG=bootstrap-debug 2615 ;; 2616 no) 2617 bootstrap_suffix=no-bootstrap 2618 BUILD_CONFIG= 2619 ;; 2620esac 2621 2622AC_MSG_CHECKING(for default BUILD_CONFIG) 2623 2624AC_ARG_WITH([build-config], 2625 [AS_HELP_STRING([--with-build-config='NAME NAME2...'], 2626 [use config/NAME.mk build configuration])], 2627 [case $with_build_config in 2628 yes) with_build_config= ;; 2629 no) with_build_config= BUILD_CONFIG= ;; 2630 esac]) 2631 2632if test "x${with_build_config}" != x; then 2633 BUILD_CONFIG=$with_build_config 2634else 2635 case $BUILD_CONFIG in 2636 bootstrap-debug) 2637 if echo "int f (void) { return 0; }" > conftest.c && 2638 ${CC} -c conftest.c && 2639 mv conftest.o conftest.o.g0 && 2640 ${CC} -c -g conftest.c && 2641 mv conftest.o conftest.o.g && 2642 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then 2643 : 2644 else 2645 BUILD_CONFIG= 2646 fi 2647 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g 2648 ;; 2649 esac 2650fi 2651AC_MSG_RESULT($BUILD_CONFIG) 2652AC_SUBST(BUILD_CONFIG) 2653 2654# Use same top-level configure hooks in libgcc/libstdc++/libvtv. 2655AC_MSG_CHECKING([for --enable-vtable-verify]) 2656AC_ARG_ENABLE(vtable-verify, 2657[AS_HELP_STRING([--enable-vtable-verify], 2658 [Enable vtable verification feature])], 2659[case "$enableval" in 2660 yes) enable_vtable_verify=yes ;; 2661 no) enable_vtable_verify=no ;; 2662 *) enable_vtable_verify=no;; 2663 esac], 2664[enable_vtable_verify=no]) 2665AC_MSG_RESULT($enable_vtable_verify) 2666 2667# Record target_configdirs and the configure arguments for target and 2668# build configuration in Makefile. 2669target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'` 2670build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'` 2671bootstrap_fixincludes=no 2672 2673# If we are building libgomp, bootstrap it. 2674if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then 2675 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp, 2676fi 2677 2678# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan 2679# or bootstrap-ubsan, bootstrap it. 2680if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then 2681 case "$BUILD_CONFIG" in 2682 *bootstrap-asan* | *bootstrap-ubsan* ) 2683 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer, 2684 bootstrap_fixincludes=yes 2685 ;; 2686 esac 2687fi 2688 2689# If we are building libvtv and --enable-vtable-verify, bootstrap it. 2690if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 && 2691 test "$enable_vtable_verify" != no; then 2692 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv, 2693fi 2694 2695# If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx, 2696# bootstrap it. 2697if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then 2698 case "$BUILD_CONFIG" in 2699 *bootstrap-mpx* ) 2700 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx, 2701 ;; 2702 esac 2703fi 2704 2705# Determine whether gdb needs tk/tcl or not. 2706# Use 'maybe' since enable_gdbtk might be true even if tk isn't available 2707# and in that case we want gdb to be built without tk. Ugh! 2708# In fact I believe gdb is the *only* package directly dependent on tk, 2709# so we should be able to put the 'maybe's in unconditionally and 2710# leave out the maybe dependencies when enable_gdbtk is false. I'm not 2711# 100% sure that that's safe though. 2712 2713gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui" 2714case "$enable_gdbtk" in 2715 no) 2716 GDB_TK="" ;; 2717 yes) 2718 GDB_TK="${gdb_tk}" ;; 2719 *) 2720 # Only add the dependency on gdbtk when GDBtk is part of the gdb 2721 # distro. Eventually someone will fix this and move Insight, nee 2722 # gdbtk to a separate directory. 2723 if test -d ${srcdir}/gdb/gdbtk ; then 2724 GDB_TK="${gdb_tk}" 2725 else 2726 GDB_TK="" 2727 fi 2728 ;; 2729esac 2730CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g` 2731INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g` 2732 2733# Strip out unwanted targets. 2734 2735# While at that, we remove Makefiles if we were started for recursive 2736# configuration, so that the top-level Makefile reconfigures them, 2737# like we used to do when configure itself was recursive. 2738 2739# Loop over modules. We used to use the "$extrasub" feature from Autoconf 2740# but now we're fixing up the Makefile ourselves with the additional 2741# commands passed to AC_CONFIG_FILES. Use separate variables 2742# extrasub-{build,host,target} not because there is any reason to split 2743# the substitutions up that way, but only to remain below the limit of 2744# 99 commands in a script, for HP-UX sed. 2745# Do not nest @if/@endif pairs, because configure will not warn you at all. 2746 2747case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in 2748 yes:yes:*\ gold\ *:*,c++,*) ;; 2749 yes:yes:*\ gold\ *:*) 2750 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages]) 2751 ;; 2752esac 2753 2754extrasub_build= 2755for module in ${build_configdirs} ; do 2756 if test -z "${no_recursion}" \ 2757 && test -f ${build_subdir}/${module}/Makefile; then 2758 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure" 2759 rm -f ${build_subdir}/${module}/Makefile 2760 fi 2761 extrasub_build="$extrasub_build 2762/^@if build-$module\$/d 2763/^@endif build-$module\$/d 2764/^@if build-$module-$bootstrap_suffix\$/d 2765/^@endif build-$module-$bootstrap_suffix\$/d" 2766done 2767extrasub_host= 2768for module in ${configdirs} ; do 2769 if test -z "${no_recursion}"; then 2770 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do 2771 if test -f ${file}; then 2772 echo 1>&2 "*** removing ${file} to force reconfigure" 2773 rm -f ${file} 2774 fi 2775 done 2776 fi 2777 case ${module},${bootstrap_fixincludes} in 2778 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;; 2779 *) host_bootstrap_suffix=$bootstrap_suffix ;; 2780 esac 2781 extrasub_host="$extrasub_host 2782/^@if $module\$/d 2783/^@endif $module\$/d 2784/^@if $module-$host_bootstrap_suffix\$/d 2785/^@endif $module-$host_bootstrap_suffix\$/d" 2786done 2787extrasub_target= 2788for module in ${target_configdirs} ; do 2789 if test -z "${no_recursion}" \ 2790 && test -f ${target_subdir}/${module}/Makefile; then 2791 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure" 2792 rm -f ${target_subdir}/${module}/Makefile 2793 fi 2794 2795 # We only bootstrap target libraries listed in bootstrap_target_libs. 2796 case $bootstrap_target_libs in 2797 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;; 2798 *) target_bootstrap_suffix=no-bootstrap ;; 2799 esac 2800 2801 extrasub_target="$extrasub_target 2802/^@if target-$module\$/d 2803/^@endif target-$module\$/d 2804/^@if target-$module-$target_bootstrap_suffix\$/d 2805/^@endif target-$module-$target_bootstrap_suffix\$/d" 2806done 2807 2808# Do the final fixup along with target modules. 2809extrasub_target="$extrasub_target 2810/^@if /,/^@endif /d" 2811 2812# Create the serialization dependencies. This uses a temporary file. 2813 2814AC_ARG_ENABLE([serial-configure], 2815[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]], 2816 [force sequential configuration of 2817 sub-packages for the host, target or build 2818 machine, or all sub-packages])]) 2819 2820case ${enable_serial_configure} in 2821 yes) 2822 enable_serial_build_configure=yes 2823 enable_serial_host_configure=yes 2824 enable_serial_target_configure=yes 2825 ;; 2826esac 2827 2828# These force 'configure's to be done one at a time, to avoid problems 2829# with contention over a shared config.cache. 2830rm -f serdep.tmp 2831echo '# serdep.tmp' > serdep.tmp 2832olditem= 2833test "x${enable_serial_build_configure}" = xyes && 2834for item in ${build_configdirs} ; do 2835 case ${olditem} in 2836 "") ;; 2837 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;; 2838 esac 2839 olditem=${item} 2840done 2841olditem= 2842test "x${enable_serial_host_configure}" = xyes && 2843for item in ${configdirs} ; do 2844 case ${olditem} in 2845 "") ;; 2846 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;; 2847 esac 2848 olditem=${item} 2849done 2850olditem= 2851test "x${enable_serial_target_configure}" = xyes && 2852for item in ${target_configdirs} ; do 2853 case ${olditem} in 2854 "") ;; 2855 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;; 2856 esac 2857 olditem=${item} 2858done 2859serialization_dependencies=serdep.tmp 2860AC_SUBST_FILE(serialization_dependencies) 2861 2862# Base args. Strip norecursion, cache-file, srcdir, host, build, 2863# target, nonopt, and variable assignments. These are the ones we 2864# might not want to pass down to subconfigures. The exception being 2865# --cache-file=/dev/null, which is used to turn off the use of cache 2866# files altogether, and which should be passed on to subconfigures. 2867# Also strip program-prefix, program-suffix, and program-transform-name, 2868# so that we can pass down a consistent program-transform-name. 2869baseargs= 2870tbaseargs= 2871keep_next=no 2872skip_next=no 2873eval "set -- $ac_configure_args" 2874for ac_arg 2875do 2876 if test X"$skip_next" = X"yes"; then 2877 skip_next=no 2878 continue 2879 fi 2880 if test X"$keep_next" = X"yes"; then 2881 case $ac_arg in 2882 *\'*) 2883 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 2884 esac 2885 baseargs="$baseargs '$ac_arg'" 2886 tbaseargs="$tbaseargs '$ac_arg'" 2887 keep_next=no 2888 continue 2889 fi 2890 2891 # Handle separated arguments. Based on the logic generated by 2892 # autoconf 2.59. 2893 case $ac_arg in 2894 *=* | --config-cache | -C | -disable-* | --disable-* \ 2895 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ 2896 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ 2897 | -with-* | --with-* | -without-* | --without-* | --x) 2898 separate_arg=no 2899 ;; 2900 -*) 2901 separate_arg=yes 2902 ;; 2903 *) 2904 separate_arg=no 2905 ;; 2906 esac 2907 2908 skip_targ=no 2909 case $ac_arg in 2910changequote(,) 2911 --with-* | --without-*) 2912 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'` 2913 2914 case $libopt in 2915 *[-_]include) 2916 lib=`echo "$libopt" | sed 's,[-_]include$,,'` 2917 ;; 2918 *[-_]lib) 2919 lib=`echo "$libopt" | sed 's,[-_]lib$,,'` 2920 ;; 2921 *) 2922 lib=$libopt 2923 ;; 2924 esac 2925changequote([,]) 2926 2927 case $lib in 2928 mpc | mpfr | gmp | isl) 2929 # If we're processing --with-$lib, --with-$lib-include or 2930 # --with-$lib-lib, for one of the libs above, and target is 2931 # different from host, don't pass the current argument to any 2932 # target library's configure. 2933 if test x$is_cross_compiler = xyes; then 2934 skip_targ=yes 2935 fi 2936 ;; 2937 esac 2938 ;; 2939 esac 2940 2941 case "$ac_arg" in 2942 --cache-file=/dev/null | \ 2943 -cache-file=/dev/null ) 2944 # Handled here to avoid the test to skip args below. 2945 baseargs="$baseargs '$ac_arg'" 2946 tbaseargs="$tbaseargs '$ac_arg'" 2947 # Assert: $separate_arg should always be no. 2948 keep_next=$separate_arg 2949 ;; 2950 --no*) 2951 continue 2952 ;; 2953 --c* | \ 2954 --sr* | \ 2955 --ho* | \ 2956 --bu* | \ 2957 --t* | \ 2958 --program-* | \ 2959 -cache_file* | \ 2960 -srcdir* | \ 2961 -host* | \ 2962 -build* | \ 2963 -target* | \ 2964 -program-prefix* | \ 2965 -program-suffix* | \ 2966 -program-transform-name* ) 2967 skip_next=$separate_arg 2968 continue 2969 ;; 2970 -*) 2971 # An option. Add it. 2972 case $ac_arg in 2973 *\'*) 2974 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; 2975 esac 2976 baseargs="$baseargs '$ac_arg'" 2977 if test X"$skip_targ" = Xno; then 2978 tbaseargs="$tbaseargs '$ac_arg'" 2979 fi 2980 keep_next=$separate_arg 2981 ;; 2982 *) 2983 # Either a variable assignment, or a nonopt (triplet). Don't 2984 # pass it down; let the Makefile handle this. 2985 continue 2986 ;; 2987 esac 2988done 2989# Remove the initial space we just introduced and, as these will be 2990# expanded by make, quote '$'. 2991baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'` 2992 2993# Add in --program-transform-name, after --program-prefix and 2994# --program-suffix have been applied to it. Autoconf has already 2995# doubled dollar signs and backslashes in program_transform_name; we want 2996# the backslashes un-doubled, and then the entire thing wrapped in single 2997# quotes, because this will be expanded first by make and then by the shell. 2998# Also, because we want to override the logic in subdir configure scripts to 2999# choose program_transform_name, replace any s,x,x, with s,y,y,. 3000sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out 3001${program_transform_name} 3002EOF_SED 3003gcc_transform_name=`cat conftestsed.out` 3004rm -f conftestsed.out 3005baseargs="$baseargs --program-transform-name='${gcc_transform_name}'" 3006tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'" 3007if test "$silent" = yes; then 3008 baseargs="$baseargs --silent" 3009 tbaseargs="$tbaseargs --silent" 3010fi 3011baseargs="$baseargs --disable-option-checking" 3012tbaseargs="$tbaseargs --disable-option-checking" 3013 3014# Record and document user additions to sub configure arguments. 3015AC_ARG_VAR([build_configargs], 3016 [additional configure arguments for build directories]) 3017AC_ARG_VAR([host_configargs], 3018 [additional configure arguments for host directories]) 3019AC_ARG_VAR([target_configargs], 3020 [additional configure arguments for target directories]) 3021 3022# For the build-side libraries, we just need to pretend we're native, 3023# and not use the same cache file. Multilibs are neither needed nor 3024# desired. We can't even use the same cache file for all build-side 3025# libraries, as they're compiled differently; some with C, some with 3026# C++ or with different feature-enabling options. 3027build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}" 3028 3029# For host modules, accept cache file option, or specification as blank. 3030case "${cache_file}" in 3031"") # empty 3032 cache_file_option="" ;; 3033/* | [[A-Za-z]]:[[\\/]]* ) # absolute path 3034 cache_file_option="--cache-file=${cache_file}" ;; 3035*) # relative path 3036 cache_file_option="--cache-file=../${cache_file}" ;; 3037esac 3038 3039# Host dirs don't like to share a cache file either, horribly enough. 3040# This seems to be due to autoconf 2.5x stupidity. 3041host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}" 3042 3043target_configargs="$target_configargs ${tbaseargs}" 3044 3045# Passing a --with-cross-host argument lets the target libraries know 3046# whether they are being built with a cross-compiler or being built 3047# native. However, it would be better to use other mechanisms to make the 3048# sorts of decisions they want to make on this basis. Please consider 3049# this option to be deprecated. FIXME. 3050if test x${is_cross_compiler} = xyes ; then 3051 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}" 3052fi 3053 3054# Special user-friendly check for native x86_64-linux build, if 3055# multilib is not explicitly enabled. 3056case "$target:$have_compiler:$host:$target:$enable_multilib" in 3057 x86_64-*linux*:yes:$build:$build:) 3058 # Make sure we have a development environment that handles 32-bit 3059 dev64=no 3060 echo "int main () { return 0; }" > conftest.c 3061 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c 3062 if test $? = 0 ; then 3063 if test -s conftest || test -s conftest.exe ; then 3064 dev64=yes 3065 fi 3066 fi 3067 rm -f conftest* 3068 if test x${dev64} != xyes ; then 3069 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.]) 3070 fi 3071 ;; 3072esac 3073 3074# Default to --enable-multilib. 3075if test x${enable_multilib} = x ; then 3076 target_configargs="--enable-multilib ${target_configargs}" 3077fi 3078 3079# Pass --with-newlib if appropriate. Note that target_configdirs has 3080# changed from the earlier setting of with_newlib. 3081if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then 3082 target_configargs="--with-newlib ${target_configargs}" 3083fi 3084 3085# Different target subdirs use different values of certain variables 3086# (notably CXX). Worse, multilibs use *lots* of different values. 3087# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that 3088# it doesn't automatically accept command-line overrides of them. 3089# This means it's not safe for target subdirs to share a cache file, 3090# which is disgusting, but there you have it. Hopefully this can be 3091# fixed in future. It's still worthwhile to use a cache file for each 3092# directory. I think. 3093 3094# Pass the appropriate --build, --host, --target and --cache-file arguments. 3095# We need to pass --target, as newer autoconf's requires consistency 3096# for target_alias and gcc doesn't manage it consistently. 3097target_configargs="--cache-file=./config.cache ${target_configargs}" 3098 3099FLAGS_FOR_TARGET= 3100case " $target_configdirs " in 3101 *" newlib "*) 3102 case " $target_configargs " in 3103 *" --with-newlib "*) 3104 case "$target" in 3105 *-cygwin*) 3106 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include' 3107 ;; 3108 esac 3109 3110 # If we're not building GCC, don't discard standard headers. 3111 if test -d ${srcdir}/gcc; then 3112 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc' 3113 3114 if test "${build}" != "${host}"; then 3115 # On Canadian crosses, CC_FOR_TARGET will have already been set 3116 # by `configure', so we won't have an opportunity to add -Bgcc/ 3117 # to it. This is right: we don't want to search that directory 3118 # for binaries, but we want the header files in there, so add 3119 # them explicitly. 3120 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed' 3121 3122 # Someone might think of using the pre-installed headers on 3123 # Canadian crosses, in case the installed compiler is not fully 3124 # compatible with the compiler being built. In this case, it 3125 # would be better to flag an error than risking having 3126 # incompatible object files being constructed. We can't 3127 # guarantee that an error will be flagged, but let's hope the 3128 # compiler will do it, when presented with incompatible header 3129 # files. 3130 fi 3131 fi 3132 3133 case "${target}-${is_cross_compiler}" in 3134 i[[3456789]]86-*-linux*-no) 3135 # Here host == target, so we don't need to build gcc, 3136 # so we don't want to discard standard headers. 3137 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'` 3138 ;; 3139 *) 3140 # If we're building newlib, use its generic headers last, but search 3141 # for any libc-related directories first (so make it the last -B 3142 # switch). 3143 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include' 3144 3145 # If we're building libgloss, find the startup file, simulator library 3146 # and linker script. 3147 case " $target_configdirs " in 3148 *" libgloss "*) 3149 # Look for startup file, simulator library and maybe linker script. 3150 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir" 3151 # Look for libnosys.a in case the target needs it. 3152 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys' 3153 # Most targets have the linker script in the source directory. 3154 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir" 3155 ;; 3156 esac 3157 ;; 3158 esac 3159 ;; 3160 esac 3161 ;; 3162esac 3163 3164case "$target" in 3165 x86_64-*mingw* | *-w64-mingw*) 3166 # MinGW-w64 does not use newlib, nor does it use winsup. It may, 3167 # however, use a symlink named 'mingw' in ${prefix} . 3168 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include' 3169 ;; 3170 *-mingw*) 3171 # MinGW can't be handled as Cygwin above since it does not use newlib. 3172 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' 3173 ;; 3174esac 3175 3176# Allow the user to override the flags for 3177# our build compiler if desired. 3178if test x"${build}" = x"${host}" ; then 3179 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}} 3180 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}} 3181 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}} 3182fi 3183 3184# On Canadian crosses, we'll be searching the right directories for 3185# the previously-installed cross compiler, so don't bother to add 3186# flags for directories within the install tree of the compiler 3187# being built; programs in there won't even run. 3188if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then 3189 # Search for pre-installed headers if nothing else fits. 3190 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include' 3191fi 3192 3193if test "x${use_gnu_ld}" = x && 3194 echo " ${configdirs} " | grep " ld " > /dev/null ; then 3195 # Arrange for us to find uninstalled linker scripts. 3196 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld' 3197fi 3198 3199# Search for other target-specific linker scripts and such. 3200case "${target}" in 3201 mep*) 3202 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary" 3203 ;; 3204esac 3205 3206# Makefile fragments. 3207for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag; 3208do 3209 eval fragval=\$$frag 3210 if test $fragval != /dev/null; then 3211 eval $frag=${srcdir}/$fragval 3212 fi 3213done 3214AC_SUBST_FILE(host_makefile_frag) 3215AC_SUBST_FILE(target_makefile_frag) 3216AC_SUBST_FILE(alphaieee_frag) 3217AC_SUBST_FILE(ospace_frag) 3218 3219# Miscellanea: directories, flags, etc. 3220AC_SUBST(RPATH_ENVVAR) 3221AC_SUBST(GCC_SHLIB_SUBDIR) 3222AC_SUBST(tooldir) 3223AC_SUBST(build_tooldir) 3224AC_SUBST(CONFIGURE_GDB_TK) 3225AC_SUBST(GDB_TK) 3226AC_SUBST(INSTALL_GDB_TK) 3227 3228# Build module lists & subconfigure args. 3229AC_SUBST(build_configargs) 3230AC_SUBST(build_configdirs) 3231 3232# Host module lists & subconfigure args. 3233AC_SUBST(host_configargs) 3234AC_SUBST(configdirs) 3235AC_SUBST(target_configdirs) 3236 3237# Target module lists & subconfigure args. 3238AC_SUBST(target_configargs) 3239 3240 3241# Build tools. 3242AC_SUBST(AR_FOR_BUILD) 3243AC_SUBST(AS_FOR_BUILD) 3244AC_SUBST(CC_FOR_BUILD) 3245AC_SUBST(CFLAGS_FOR_BUILD) 3246AC_SUBST(CXXFLAGS_FOR_BUILD) 3247AC_SUBST(CXX_FOR_BUILD) 3248AC_SUBST(DLLTOOL_FOR_BUILD) 3249AC_SUBST(GFORTRAN_FOR_BUILD) 3250AC_SUBST(GOC_FOR_BUILD) 3251AC_SUBST(LDFLAGS_FOR_BUILD) 3252AC_SUBST(LD_FOR_BUILD) 3253AC_SUBST(NM_FOR_BUILD) 3254AC_SUBST(RANLIB_FOR_BUILD) 3255AC_SUBST(WINDMC_FOR_BUILD) 3256AC_SUBST(WINDRES_FOR_BUILD) 3257 3258# Generate default definitions for YACC, M4, LEX and other programs that run 3259# on the build machine. These are used if the Makefile can't locate these 3260# programs in objdir. 3261MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing 3262 3263AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y]) 3264case " $build_configdirs " in 3265 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;; 3266esac 3267 3268AC_CHECK_PROGS([BISON], [bison], [$MISSING bison]) 3269case " $build_configdirs " in 3270 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;; 3271esac 3272 3273AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4]) 3274case " $build_configdirs " in 3275 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;; 3276esac 3277 3278AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex]) 3279case " $build_configdirs " in 3280 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; 3281 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;; 3282esac 3283 3284AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex]) 3285case " $build_configdirs " in 3286 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; 3287esac 3288 3289AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo]) 3290case " $build_configdirs " in 3291 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;; 3292 *) 3293changequote(,) 3294 # For an installed makeinfo, we require it to be from texinfo 4.7 or 3295 # higher, else we use the "missing" dummy. 3296 if ${MAKEINFO} --version \ 3297 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then 3298 : 3299 else 3300 MAKEINFO="$MISSING makeinfo" 3301 fi 3302 ;; 3303changequote([,]) 3304esac 3305 3306# FIXME: expect and dejagnu may become build tools? 3307 3308AC_CHECK_PROGS(EXPECT, expect, expect) 3309case " $configdirs " in 3310 *" expect "*) 3311 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect' 3312 ;; 3313esac 3314 3315AC_CHECK_PROGS(RUNTEST, runtest, runtest) 3316case " $configdirs " in 3317 *" dejagnu "*) 3318 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest' 3319 ;; 3320esac 3321 3322 3323# Host tools. 3324NCN_STRICT_CHECK_TOOLS(AR, ar) 3325NCN_STRICT_CHECK_TOOLS(AS, as) 3326NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool) 3327NCN_STRICT_CHECK_TOOLS(LD, ld) 3328NCN_STRICT_CHECK_TOOLS(LIPO, lipo) 3329NCN_STRICT_CHECK_TOOLS(NM, nm) 3330NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true) 3331NCN_STRICT_CHECK_TOOLS(STRIP, strip, true) 3332NCN_STRICT_CHECK_TOOLS(WINDRES, windres) 3333NCN_STRICT_CHECK_TOOLS(WINDMC, windmc) 3334NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy) 3335NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump) 3336NCN_STRICT_CHECK_TOOLS(READELF, readelf) 3337AC_SUBST(CC) 3338AC_SUBST(CXX) 3339AC_SUBST(CFLAGS) 3340AC_SUBST(CXXFLAGS) 3341 3342# Target tools. 3343AC_ARG_WITH([build-time-tools], 3344 [AS_HELP_STRING([--with-build-time-tools=PATH], 3345 [use given path to find target tools during the build])], 3346 [case x"$withval" in 3347 x/*) ;; 3348 *) 3349 with_build_time_tools= 3350 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path]) 3351 ;; 3352 esac], 3353 [with_build_time_tools=]) 3354 3355NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc) 3356NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx) 3357NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET}) 3358NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran) 3359NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo) 3360 3361ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar) 3362ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as) 3363ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool) 3364ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld) 3365ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo) 3366ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm) 3367ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy) 3368ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump) 3369ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib) 3370ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf) 3371ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip) 3372ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres) 3373ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc) 3374 3375RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET" 3376 3377GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar]) 3378GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new]) 3379GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) 3380dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS 3381GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX, 3382 [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], 3383 c++) 3384GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX, 3385 [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], 3386 c++) 3387GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool]) 3388GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) 3389GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN, 3390 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran) 3391GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC, 3392 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go) 3393GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new]) 3394GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO) 3395GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new]) 3396GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy]) 3397GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump]) 3398GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib]) 3399GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf]) 3400GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new]) 3401GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres]) 3402GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc]) 3403 3404AC_SUBST(FLAGS_FOR_TARGET) 3405AC_SUBST(RAW_CXX_FOR_TARGET) 3406 3407# Certain tools may need extra flags. 3408AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target} 3409RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target} 3410NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target} 3411 3412# When building target libraries, except in a Canadian cross, we use 3413# the same toolchain as the compiler we just built. 3414COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)' 3415COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)' 3416COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)' 3417if test $host = $build; then 3418 case " $configdirs " in 3419 *" gcc "*) 3420 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as' 3421 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld' 3422 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target} 3423 ;; 3424 esac 3425fi 3426 3427AC_SUBST(COMPILER_AS_FOR_TARGET) 3428AC_SUBST(COMPILER_LD_FOR_TARGET) 3429AC_SUBST(COMPILER_NM_FOR_TARGET) 3430 3431AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) 3432AC_ARG_ENABLE(maintainer-mode, 3433[AS_HELP_STRING([--enable-maintainer-mode], 3434 [enable make rules and dependencies not useful 3435 (and sometimes confusing) to the casual installer])], 3436 USE_MAINTAINER_MODE=$enableval, 3437 USE_MAINTAINER_MODE=no) 3438AC_MSG_RESULT($USE_MAINTAINER_MODE) 3439AC_SUBST(MAINTAINER_MODE_TRUE) 3440AC_SUBST(MAINTAINER_MODE_FALSE) 3441if test "$USE_MAINTAINER_MODE" = yes; then 3442 MAINTAINER_MODE_TRUE= 3443 MAINTAINER_MODE_FALSE='#' 3444else 3445 MAINTAINER_MODE_TRUE='#' 3446 MAINTAINER_MODE_FALSE= 3447fi 3448MAINT=$MAINTAINER_MODE_TRUE 3449AC_SUBST(MAINT)dnl 3450 3451# --------------------- 3452# GCC bootstrap support 3453# --------------------- 3454 3455# Stage specific cflags for build. 3456stage1_cflags="-g" 3457case $build in 3458 vax-*-*) 3459 case ${GCC} in 3460 yes) stage1_cflags="-g -Wa,-J" ;; 3461 *) stage1_cflags="-g -J" ;; 3462 esac ;; 3463esac 3464 3465AC_SUBST(stage1_cflags) 3466 3467# Enable --enable-checking in stage1 of the compiler. 3468AC_ARG_ENABLE(stage1-checking, 3469[AS_HELP_STRING([[--enable-stage1-checking[=all]]], 3470 [choose additional checking for stage1 of the compiler])], 3471[stage1_checking=--enable-checking=${enable_stage1_checking}], 3472[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then 3473 # For --disable-checking or implicit --enable-checking=release, avoid 3474 # setting --enable-checking=gc in the default stage1 checking for LTO 3475 # bootstraps. See PR62077. 3476 case $BUILD_CONFIG in 3477 *lto*) 3478 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;; 3479 *) 3480 stage1_checking=--enable-checking=yes,types;; 3481 esac 3482 if test "x$enable_checking" = x && \ 3483 test -d ${srcdir}/gcc && \ 3484 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then 3485 stage1_checking=--enable-checking=yes,types,extra 3486 fi 3487else 3488 stage1_checking=--enable-checking=$enable_checking,types 3489fi]) 3490AC_SUBST(stage1_checking) 3491 3492# Enable -Werror in bootstrap stage2 and later. 3493AC_ARG_ENABLE(werror, 3494[AS_HELP_STRING([--enable-werror], 3495 [enable -Werror in bootstrap stage2 and later])], 3496[ 3497case ${enable_werror} in 3498 yes) stage2_werror_flag="--enable-werror-always" ;; 3499 *) stage2_werror_flag="" ;; 3500esac 3501], 3502[ 3503if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then 3504 case $BUILD_CONFIG in 3505 bootstrap-debug) 3506 stage2_werror_flag="--enable-werror-always" ;; 3507 "") 3508 stage2_werror_flag="--enable-werror-always" ;; 3509 esac 3510fi 3511]) 3512 3513AC_SUBST(stage2_werror_flag) 3514 3515# Specify what files to not compare during bootstrap. 3516 3517compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*" 3518case "$target" in 3519 hppa*64*-*-hpux*) ;; 3520 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;; 3521 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;; 3522esac 3523AC_SUBST(compare_exclusions) 3524 3525AC_CONFIG_FILES([Makefile], 3526 [sed "$extrasub_build" Makefile | 3527 sed "$extrasub_host" | 3528 sed "$extrasub_target" > mf$$ 3529 mv -f mf$$ Makefile], 3530 [extrasub_build="$extrasub_build" 3531 extrasub_host="$extrasub_host" 3532 extrasub_target="$extrasub_target"]) 3533AC_OUTPUT 3534