1dnl Process this with autoconf to create configure 2 3AC_PREREQ(2.64) 4 5AC_INIT([libffi], [3.0.11], [http://gcc.gnu.org/bugs.html]) 6AC_CONFIG_HEADERS([fficonfig.h]) 7 8AM_ENABLE_MULTILIB(, ..) 9 10AC_CANONICAL_SYSTEM 11target_alias=${target_alias-$host_alias} 12 13. ${srcdir}/configure.host 14 15AM_INIT_AUTOMAKE([no-dist]) 16 17# See if makeinfo has been installed and is modern enough 18# that we can use it. 19ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version], 20 [GNU texinfo.* \([0-9][0-9.]*\)], 21 [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) 22AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes") 23 24# We would like our source tree to be readonly. However when releases or 25# pre-releases are generated, the flex/bison generated files as well as the 26# various formats of manuals need to be included along with the rest of the 27# sources. Therefore we have --enable-generated-files-in-srcdir to do 28# just that. 29AC_MSG_CHECKING(generated-files-in-srcdir) 30AC_ARG_ENABLE(generated-files-in-srcdir, 31AS_HELP_STRING([--enable-generated-files-in-srcdir], 32 [put copies of generated files in source dir intended for creating source tarballs for users without texinfo bison or flex]), 33[case "$enableval" in 34 yes) enable_generated_files_in_srcdir=yes ;; 35 no) enable_generated_files_in_srcdir=no ;; 36 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; 37 esac], 38[enable_generated_files_in_srcdir=no]) 39AC_MSG_RESULT($enable_generated_files_in_srcdir) 40AM_CONDITIONAL(GENINSRC, test "$enable_generated_files_in_srcdir" = yes) 41 42# The same as in boehm-gc and libstdc++. Have to borrow it from there. 43# We must force CC to /not/ be precious variables; otherwise 44# the wrong, non-multilib-adjusted value will be used in multilibs. 45# As a side effect, we have to subst CFLAGS ourselves. 46 47m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) 48m4_define([_AC_ARG_VAR_PRECIOUS],[]) 49AC_PROG_CC 50m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) 51 52AC_SUBST(CFLAGS) 53 54AM_PROG_AS 55AM_PROG_CC_C_O 56AC_PROG_LIBTOOL 57 58AM_MAINTAINER_MODE 59 60AC_CHECK_HEADERS(sys/mman.h) 61AC_CHECK_FUNCS(mmap) 62AC_FUNC_MMAP_BLACKLIST 63 64dnl The -no-testsuite modules omit the test subdir. 65AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite) 66 67TARGETDIR="unknown" 68HAVE_LONG_DOUBLE_VARIANT=0 69case "$host" in 70 aarch64*-*-*) 71 TARGET=AARCH64; TARGETDIR=aarch64 72 ;; 73 74 alpha*-*-*) 75 TARGET=ALPHA; TARGETDIR=alpha; 76 # Support 128-bit long double, changeable via command-line switch. 77 HAVE_LONG_DOUBLE='defined(__LONG_DOUBLE_128__)' 78 ;; 79 80 arm*-*-*) 81 TARGET=ARM; TARGETDIR=arm 82 ;; 83 84 amd64-*-freebsd* | amd64-*-openbsd*) 85 TARGET=X86_64; TARGETDIR=x86 86 ;; 87 88 amd64-*-freebsd*) 89 TARGET=X86_64; TARGETDIR=x86 90 ;; 91 92 avr32*-*-*) 93 TARGET=AVR32; TARGETDIR=avr32 94 ;; 95 96 bfin*) 97 TARGET=BFIN; TARGETDIR=bfin 98 ;; 99 100 cris-*-*) 101 TARGET=LIBFFI_CRIS; TARGETDIR=cris 102 ;; 103 104 frv-*-*) 105 TARGET=FRV; TARGETDIR=frv 106 ;; 107 108 hppa*-*-linux* | parisc*-*-linux* | hppa*-*-openbsd*) 109 TARGET=PA_LINUX; TARGETDIR=pa 110 ;; 111 hppa*64-*-hpux*) 112 TARGET=PA64_HPUX; TARGETDIR=pa 113 ;; 114 hppa*-*-hpux*) 115 TARGET=PA_HPUX; TARGETDIR=pa 116 ;; 117 118 i?86-*-freebsd* | i?86-*-openbsd*) 119 TARGET=X86_FREEBSD; TARGETDIR=x86 120 ;; 121 i?86-win32* | i?86-*-cygwin* | i?86-*-mingw* | i?86-*-os2* | i?86-*-interix*) 122 TARGET=X86_WIN32; TARGETDIR=x86 123 # All mingw/cygwin/win32 builds require -no-undefined for sharedlib. 124 # We must also check with_cross_host to decide if this is a native 125 # or cross-build and select where to install dlls appropriately. 126 if test -n "$with_cross_host" && 127 test x"$with_cross_host" != x"no"; then 128 AM_LTLDFLAGS='-no-undefined -bindir "$(toolexeclibdir)"'; 129 else 130 AM_LTLDFLAGS='-no-undefined -bindir "$(bindir)"'; 131 fi 132 ;; 133 i?86-*-darwin*) 134 TARGET=X86_DARWIN; TARGETDIR=x86 135 ;; 136 i?86-*-solaris2.1[[0-9]]*) 137 TARGET=X86_64; TARGETDIR=x86 138 ;; 139 i?86-*-*) 140 TARGET=X86_64; TARGETDIR=x86 141 ;; 142 143 ia64*-*-*) 144 TARGET=IA64; TARGETDIR=ia64 145 ;; 146 147 m32r*-*-*) 148 TARGET=M32R; TARGETDIR=m32r 149 ;; 150 151 m68k-*-*) 152 TARGET=M68K; TARGETDIR=m68k 153 ;; 154 155 mips-sgi-irix5.* | mips-sgi-irix6.* | mips*-*-rtems*) 156 TARGET=MIPS; TARGETDIR=mips 157 ;; 158 mips*-*-linux* | mips*-*-openbsd*) 159 # Support 128-bit long double for NewABI. 160 HAVE_LONG_DOUBLE='defined(__mips64)' 161 TARGET=MIPS; TARGETDIR=mips 162 ;; 163 164 powerpc*-*-linux* | powerpc-*-sysv*) 165 TARGET=POWERPC; TARGETDIR=powerpc 166 HAVE_LONG_DOUBLE_VARIANT=1 167 ;; 168 powerpc-*-amigaos*) 169 TARGET=POWERPC; TARGETDIR=powerpc 170 ;; 171 powerpc-*-beos*) 172 TARGET=POWERPC; TARGETDIR=powerpc 173 ;; 174 powerpc-*-darwin* | powerpc64-*-darwin*) 175 TARGET=POWERPC_DARWIN; TARGETDIR=powerpc 176 ;; 177 powerpc-*-aix* | rs6000-*-aix*) 178 TARGET=POWERPC_AIX; TARGETDIR=powerpc 179 ;; 180 powerpc-*-freebsd* | powerpc-*-openbsd*) 181 TARGET=POWERPC_FREEBSD; TARGETDIR=powerpc 182 HAVE_LONG_DOUBLE_VARIANT=1 183 ;; 184 powerpc64-*-freebsd*) 185 TARGET=POWERPC; TARGETDIR=powerpc 186 ;; 187 powerpc*-*-rtems*) 188 TARGET=POWERPC; TARGETDIR=powerpc 189 ;; 190 191 s390-*-* | s390x-*-*) 192 TARGET=S390; TARGETDIR=s390 193 ;; 194 195 sh-*-* | sh[[34]]*-*-*) 196 TARGET=SH; TARGETDIR=sh 197 ;; 198 sh64-*-* | sh5*-*-*) 199 TARGET=SH64; TARGETDIR=sh64 200 ;; 201 202 sparc*-*-*) 203 TARGET=SPARC; TARGETDIR=sparc 204 ;; 205 206 tile*-*) 207 TARGET=TILE; TARGETDIR=tile 208 ;; 209 210 x86_64-*-darwin*) 211 TARGET=X86_DARWIN; TARGETDIR=x86 212 ;; 213 214 x86_64-*-cygwin* | x86_64-*-mingw*) 215 TARGET=X86_WIN64; TARGETDIR=x86 216 # All mingw/cygwin/win32 builds require -no-undefined for sharedlib. 217 # We must also check with_cross_host to decide if this is a native 218 # or cross-build and select where to install dlls appropriately. 219 if test -n "$with_cross_host" && 220 test x"$with_cross_host" != x"no"; then 221 AM_LTLDFLAGS='-no-undefined -bindir "$(toolexeclibdir)"'; 222 else 223 AM_LTLDFLAGS='-no-undefined -bindir "$(bindir)"'; 224 fi 225 ;; 226 227 x86_64-*-*) 228 TARGET=X86_64; TARGETDIR=x86 229 ;; 230esac 231 232AC_SUBST(AM_RUNTESTFLAGS) 233AC_SUBST(AM_LTLDFLAGS) 234 235if test $TARGETDIR = unknown; then 236 AC_MSG_ERROR(["libffi has not been ported to $host."]) 237fi 238 239AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS) 240AM_CONDITIONAL(BFIN, test x$TARGET = xBFIN) 241AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC) 242AM_CONDITIONAL(X86, test x$TARGET = xX86) 243AM_CONDITIONAL(X86_FREEBSD, test x$TARGET = xX86_FREEBSD) 244AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32) 245AM_CONDITIONAL(X86_WIN64, test x$TARGET = xX86_WIN64) 246AM_CONDITIONAL(X86_DARWIN, test x$TARGET = xX86_DARWIN) 247AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA) 248AM_CONDITIONAL(IA64, test x$TARGET = xIA64) 249AM_CONDITIONAL(M32R, test x$TARGET = xM32R) 250AM_CONDITIONAL(M68K, test x$TARGET = xM68K) 251AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC) 252AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX) 253AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN) 254AM_CONDITIONAL(POWERPC_FREEBSD, test x$TARGET = xPOWERPC_FREEBSD) 255AM_CONDITIONAL(AARCH64, test x$TARGET = xAARCH64) 256AM_CONDITIONAL(ARM, test x$TARGET = xARM) 257AM_CONDITIONAL(AVR32, test x$TARGET = xAVR32) 258AM_CONDITIONAL(LIBFFI_CRIS, test x$TARGET = xLIBFFI_CRIS) 259AM_CONDITIONAL(FRV, test x$TARGET = xFRV) 260AM_CONDITIONAL(S390, test x$TARGET = xS390) 261AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64) 262AM_CONDITIONAL(SH, test x$TARGET = xSH) 263AM_CONDITIONAL(SH64, test x$TARGET = xSH64) 264AM_CONDITIONAL(PA_LINUX, test x$TARGET = xPA_LINUX) 265AM_CONDITIONAL(PA_HPUX, test x$TARGET = xPA_HPUX) 266AM_CONDITIONAL(PA64_HPUX, test x$TARGET = xPA64_HPUX) 267AM_CONDITIONAL(TILE, test x$TARGET = xTILE) 268 269AC_HEADER_STDC 270AC_CHECK_FUNCS(memcpy) 271AC_FUNC_ALLOCA 272 273AC_CHECK_SIZEOF(double) 274AC_CHECK_SIZEOF(long double) 275 276# Also AC_SUBST this variable for ffi.h. 277if test -z "$HAVE_LONG_DOUBLE"; then 278 HAVE_LONG_DOUBLE=0 279 if test $ac_cv_sizeof_long_double != 0; then 280 if test $HAVE_LONG_DOUBLE_VARIANT != 0; then 281 AC_DEFINE(HAVE_LONG_DOUBLE_VARIANT, 1, [Define if you support more than one size of the long double type]) 282 HAVE_LONG_DOUBLE=1 283 else 284 if test $ac_cv_sizeof_double != $ac_cv_sizeof_long_double; then 285 HAVE_LONG_DOUBLE=1 286 AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the long double type and it is bigger than a double]) 287 fi 288 fi 289 fi 290fi 291AC_SUBST(HAVE_LONG_DOUBLE) 292AC_SUBST(HAVE_LONG_DOUBLE_VARIANT) 293 294AC_C_BIGENDIAN 295 296GCC_AS_CFI_PSEUDO_OP 297 298if test x$TARGET = xSPARC; then 299 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs], 300 libffi_cv_as_sparc_ua_pcrel, [ 301 save_CFLAGS="$CFLAGS" 302 save_LDFLAGS="$LDFLAGS" 303 CFLAGS="$CFLAGS -fpic" 304 LDFLAGS="$LDFLAGS -shared" 305 AC_TRY_LINK([asm (".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo); .text");],, 306 [libffi_cv_as_sparc_ua_pcrel=yes], 307 [libffi_cv_as_sparc_ua_pcrel=no]) 308 CFLAGS="$save_CFLAGS" 309 LDFLAGS="$save_LDFLAGS"]) 310 if test "x$libffi_cv_as_sparc_ua_pcrel" = xyes; then 311 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, 312 [Define if your assembler and linker support unaligned PC relative relocs.]) 313 fi 314 315 AC_CACHE_CHECK([assembler .register pseudo-op support], 316 libffi_cv_as_register_pseudo_op, [ 317 libffi_cv_as_register_pseudo_op=unknown 318 # Check if we have .register 319 AC_TRY_COMPILE([asm (".register %g2, #scratch");],, 320 [libffi_cv_as_register_pseudo_op=yes], 321 [libffi_cv_as_register_pseudo_op=no]) 322 ]) 323 if test "x$libffi_cv_as_register_pseudo_op" = xyes; then 324 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1, 325 [Define if your assembler supports .register.]) 326 fi 327fi 328 329if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64; then 330 AC_CACHE_CHECK([assembler supports pc related relocs], 331 libffi_cv_as_x86_pcrel, [ 332 libffi_cv_as_x86_pcrel=yes 333 echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s 334 if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|warning' > /dev/null; then 335 libffi_cv_as_x86_pcrel=no 336 fi 337 ]) 338 if test "x$libffi_cv_as_x86_pcrel" = xyes; then 339 AC_DEFINE(HAVE_AS_X86_PCREL, 1, 340 [Define if your assembler supports PC relative relocs.]) 341 fi 342 343 AC_CACHE_CHECK([assembler .ascii pseudo-op support], 344 libffi_cv_as_ascii_pseudo_op, [ 345 libffi_cv_as_ascii_pseudo_op=unknown 346 # Check if we have .ascii 347 AC_TRY_COMPILE([asm (".ascii \\"string\\"");],, 348 [libffi_cv_as_ascii_pseudo_op=yes], 349 [libffi_cv_as_ascii_pseudo_op=no]) 350 ]) 351 if test "x$libffi_cv_as_ascii_pseudo_op" = xyes; then 352 AC_DEFINE(HAVE_AS_ASCII_PSEUDO_OP, 1, 353 [Define if your assembler supports .ascii.]) 354 fi 355 356 AC_CACHE_CHECK([assembler .string pseudo-op support], 357 libffi_cv_as_string_pseudo_op, [ 358 libffi_cv_as_string_pseudo_op=unknown 359 # Check if we have .string 360 AC_TRY_COMPILE([asm (".string \\"string\\"");],, 361 [libffi_cv_as_string_pseudo_op=yes], 362 [libffi_cv_as_string_pseudo_op=no]) 363 ]) 364 if test "x$libffi_cv_as_string_pseudo_op" = xyes; then 365 AC_DEFINE(HAVE_AS_STRING_PSEUDO_OP, 1, 366 [Define if your assembler supports .string.]) 367 fi 368fi 369 370# On PaX enable kernels that have MPROTECT enable we can't use PROT_EXEC. 371AC_ARG_ENABLE(pax_emutramp, 372 [ --enable-pax_emutramp enable pax emulated trampolines, for we can't use PROT_EXEC], 373 if test "$enable_pax_emutramp" = "yes"; then 374 AC_DEFINE(FFI_MMAP_EXEC_EMUTRAMP_PAX, 1, 375 [Define this if you want to enable pax emulated trampolines]) 376 fi) 377 378FFI_EXEC_TRAMPOLINE_TABLE=0 379case "$target" in 380 *arm*-apple-darwin*) 381 FFI_EXEC_TRAMPOLINE_TABLE=1 382 AC_DEFINE(FFI_EXEC_TRAMPOLINE_TABLE, 1, 383 [Cannot use PROT_EXEC on this target, so, we revert to 384 alternative means]) 385 ;; 386 *-apple-darwin1* | *-*-freebsd* | *-*-kfreebsd* | *-*-openbsd* | *-pc-solaris*) 387 AC_DEFINE(FFI_MMAP_EXEC_WRIT, 1, 388 [Cannot use malloc on this target, so, we revert to 389 alternative means]) 390 ;; 391esac 392AM_CONDITIONAL(FFI_EXEC_TRAMPOLINE_TABLE, test x$FFI_EXEC_TRAMPOLINE_TABLE = x1) 393AC_SUBST(FFI_EXEC_TRAMPOLINE_TABLE) 394 395if test x$TARGET = xX86_64; then 396 AC_CACHE_CHECK([assembler supports unwind section type], 397 libffi_cv_as_x86_64_unwind_section_type, [ 398 libffi_cv_as_x86_64_unwind_section_type=yes 399 echo '.section .eh_frame,"a",@unwind' > conftest.s 400 if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then 401 libffi_cv_as_x86_64_unwind_section_type=no 402 fi 403 ]) 404 if test "x$libffi_cv_as_x86_64_unwind_section_type" = xyes; then 405 AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1, 406 [Define if your assembler supports unwind section type.]) 407 fi 408fi 409 410if test "x$GCC" = "xyes"; then 411 AC_CACHE_CHECK([whether .eh_frame section should be read-only], 412 libffi_cv_ro_eh_frame, [ 413 libffi_cv_ro_eh_frame=no 414 echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c 415 if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then 416 if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then 417 libffi_cv_ro_eh_frame=yes 418 elif grep '.section.*eh_frame.*#alloc' conftest.c \ 419 | grep -v '#write' > /dev/null; then 420 libffi_cv_ro_eh_frame=yes 421 fi 422 fi 423 rm -f conftest.* 424 ]) 425 if test "x$libffi_cv_ro_eh_frame" = xyes; then 426 AC_DEFINE(HAVE_RO_EH_FRAME, 1, 427 [Define if .eh_frame sections should be read-only.]) 428 AC_DEFINE(EH_FRAME_FLAGS, "a", 429 [Define to the flags needed for the .section .eh_frame directive. ]) 430 else 431 AC_DEFINE(EH_FRAME_FLAGS, "aw", 432 [Define to the flags needed for the .section .eh_frame directive. ]) 433 fi 434 435 AC_CACHE_CHECK([for __attribute__((visibility("hidden")))], 436 libffi_cv_hidden_visibility_attribute, [ 437 echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1 ; }' > conftest.c 438 libffi_cv_hidden_visibility_attribute=no 439 if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then 440 if grep '\.hidden.*foo' conftest.s >/dev/null; then 441 libffi_cv_hidden_visibility_attribute=yes 442 fi 443 fi 444 rm -f conftest.* 445 ]) 446 if test $libffi_cv_hidden_visibility_attribute = yes; then 447 AC_DEFINE(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE, 1, 448 [Define if __attribute__((visibility("hidden"))) is supported.]) 449 fi 450fi 451 452AH_BOTTOM([ 453#ifdef HAVE_HIDDEN_VISIBILITY_ATTRIBUTE 454#ifdef LIBFFI_ASM 455#define FFI_HIDDEN(name) .hidden name 456#else 457#define FFI_HIDDEN __attribute__ ((visibility ("hidden"))) 458#endif 459#else 460#ifdef LIBFFI_ASM 461#define FFI_HIDDEN(name) 462#else 463#define FFI_HIDDEN 464#endif 465#endif 466]) 467 468AC_SUBST(TARGET) 469AC_SUBST(TARGETDIR) 470 471AC_SUBST(SHELL) 472 473AC_ARG_ENABLE(debug, 474[ --enable-debug debugging mode], 475 if test "$enable_debug" = "yes"; then 476 AC_DEFINE(FFI_DEBUG, 1, [Define this if you want extra debugging.]) 477 fi) 478AM_CONDITIONAL(FFI_DEBUG, test "$enable_debug" = "yes") 479 480AC_ARG_ENABLE(structs, 481[ --disable-structs omit code for struct support], 482 if test "$enable_structs" = "no"; then 483 AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this is you do not want support for aggregate types.]) 484 fi) 485 486AC_ARG_ENABLE(raw-api, 487[ --disable-raw-api make the raw api unavailable], 488 if test "$enable_raw_api" = "no"; then 489 AC_DEFINE(FFI_NO_RAW_API, 1, [Define this is you do not want support for the raw API.]) 490 fi) 491 492AC_ARG_ENABLE(purify-safety, 493[ --enable-purify-safety purify-safe mode], 494 if test "$enable_purify_safety" = "yes"; then 495 AC_DEFINE(USING_PURIFY, 1, [Define this if you are using Purify and want to suppress spurious messages.]) 496 fi) 497 498if test -n "$with_cross_host" && 499 test x"$with_cross_host" != x"no"; then 500 toolexecdir='$(exec_prefix)/$(target_alias)' 501 toolexeclibdir='$(toolexecdir)/lib' 502else 503 toolexecdir='$(libdir)/gcc-lib/$(target_alias)' 504 toolexeclibdir='$(libdir)' 505fi 506multi_os_directory=`$CC -print-multi-os-directory` 507case $multi_os_directory in 508 .) ;; # Avoid trailing /. 509 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; 510esac 511AC_SUBST(toolexecdir) 512AC_SUBST(toolexeclibdir) 513 514if test "${multilib}" = "yes"; then 515 multilib_arg="--enable-multilib" 516else 517 multilib_arg= 518fi 519 520AC_CONFIG_COMMANDS(include, [test -d include || mkdir include]) 521AC_CONFIG_COMMANDS(src, [ 522test -d src || mkdir src 523test -d src/$TARGETDIR || mkdir src/$TARGETDIR 524], [TARGETDIR="$TARGETDIR"]) 525 526AC_CONFIG_LINKS(include/ffitarget.h:src/$TARGETDIR/ffitarget.h) 527 528AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile man/Makefile) 529 530AC_OUTPUT 531