1 # Process this file with autoreconf to produce a configure script.
3 AC_INIT(package-unused, version-unused,, libstdc++)
4 AC_CONFIG_SRCDIR(src/shared/hashtable-aux.cc)
5 AC_CONFIG_HEADER(config.h)
7 # This works around the fact that libtool configuration may change LD
8 # for this particular configuration, but some shells, instead of
9 # keeping the changes in LD private, export them just because LD is
10 # exported. Only used at the end of this file.
11 ### am handles this now? ORIGINAL_LD_FOR_MULTILIBS=$LD
13 # Find the rest of the source tree framework.
14 AM_ENABLE_MULTILIB(, ..)
16 # Gets build, host, target, *_vendor, *_cpu, *_os, etc.
18 # You will slowly go insane if you do not grok the following fact: when
19 # building v3 as part of the compiler, the top-level /target/ becomes the
20 # library's /host/. configure then causes --target to default to --host,
21 # exactly like any other package using autoconf. Therefore, 'target' and
22 # 'host' will always be the same. This makes sense both for native and
23 # cross compilers, just think about it for a little while. :-)
25 # Also, if v3 is being configured as part of a cross compiler, the top-level
26 # configure script will pass the "real" host as $with_cross_host.
28 # Do not delete or change the following two lines. For why, see
29 # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
31 target_alias=${target_alias-$host_alias}
33 # Handy for debugging:
34 #AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5
36 if test "$build" != "$host"; then
37 # We are being configured with some form of cross compiler.
38 GLIBCXX_IS_NATIVE=false
39 case "$host","$target" in
40 # Darwin crosses can use the host system's libraries and headers,
41 # because of the fat library support. Of course, it must be the
42 # same version of Darwin on both sides. Allow the user to
43 # just say --target=foo-darwin without a version number to mean
44 # "the version on this system".
45 *-*-darwin*,*-*-darwin*)
46 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
47 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
48 if test $hostos = $targetos -o $targetos = darwin ; then
49 GLIBCXX_IS_NATIVE=true
58 GLIBCXX_IS_NATIVE=true
61 # In the case that we're building without headers, we won't have <stdio.h>
62 # available. In these cases, we have to instruct autotools to never include
63 # <stdio.h> as a part of default headers.
64 m4_version_prereq([2.70], [], [
65 if test "x$with_headers" = "xno"; then
66 ac_includes_default=`echo "$ac_includes_default" | sed '/^#include <stdio.h>$/d'`
70 # Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the
71 # following is magically included in AUTOMAKE_OPTIONS in each Makefile.am.
72 # 1.x: minimum required version
73 # no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch
74 # of other PACKAGE_* variables will, however, and there's nothing
75 # we can do about that; they come from AC_INIT).
76 # foreign: we don't follow the normal rules for GNU packages (no COPYING
77 # file in the top srcdir, etc, etc), so stop complaining.
78 # no-dependencies: turns off auto dependency generation (just for now)
79 # no-dist: we don't want 'dist' and related rules.
80 # -Wall: turns on all automake warnings...
81 # -Wno-portability: ...except this one, since GNU make is now required.
82 AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies no-dist -Wall -Wno-portability -Wno-override])
83 AH_TEMPLATE(PACKAGE, [Name of package])
84 AH_TEMPLATE(VERSION, [Version number of package])
86 # -fno-builtin must be present here so that a non-conflicting form of
87 # std::exit can be guessed by AC_PROG_CXX, and used in later tests.
89 save_CXXFLAGS="$CXXFLAGS"
90 CXXFLAGS="$CXXFLAGS -fno-builtin"
93 CXXFLAGS="$save_CXXFLAGS"
97 # Runs configure.host, and assorted other critical bits. Sets
98 # up critical shell variables.
102 if test "x${with_newlib}" != "xyes" &&
103 test "x${with_avrlibc}" != "xyes" &&
104 test "x$with_headers" != "xno"; then
109 AC_SUBST(enable_shared)
110 AC_SUBST(enable_static)
112 if test "$enable_vtable_verify" = yes; then
113 predep_objects_CXX="${predep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_start.o"
114 postdep_objects_CXX="${postdep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_end.o"
118 # libtool variables for C++ shared and position-independent compiles.
120 # Use glibcxx_lt_pic_flag to designate the automake variable
121 # used to encapsulate the default libtool approach to creating objects
122 # with position-independent code. Default: -prefer-pic.
124 # Use glibcxx_compiler_shared_flag to designate a compile-time flags for
125 # creating shared objects. Default: -D_GLIBCXX_SHARED.
127 # Use glibcxx_compiler_pic_flag to designate a compile-time flags for
128 # creating position-independent objects. This varies with the target
129 # hardware and operating system, but is often: -DPIC -fPIC.
130 if test "$enable_shared" = yes; then
131 glibcxx_lt_pic_flag="-prefer-pic"
132 glibcxx_compiler_pic_flag="$lt_prog_compiler_pic_CXX"
133 glibcxx_compiler_shared_flag="-D_GLIBCXX_SHARED"
137 glibcxx_compiler_pic_flag=
138 glibcxx_compiler_shared_flag=
140 AC_SUBST(glibcxx_lt_pic_flag)
141 AC_SUBST(glibcxx_compiler_pic_flag)
142 AC_SUBST(glibcxx_compiler_shared_flag)
144 # Override the libtool's pic_flag and pic_mode.
145 # Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT.
146 # NB: this impacts --with-pic and --without-pic.
147 lt_prog_compiler_pic_CXX="$glibcxx_compiler_pic_flag $glibcxx_compiler_shared_flag"
150 # Eliminate -lstdc++ addition to postdeps for cross compiles.
151 postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'`
153 # Possibly disable most of the library.
154 ## TODO: Consider skipping unncessary tests altogether in this case, rather
155 ## than just ignoring the results. Faster /and/ more correct, win win.
156 GLIBCXX_ENABLE_HOSTED
158 # Enable descriptive messages to standard output on termination.
159 GLIBCXX_ENABLE_VERBOSE
161 # Enable compiler support that doesn't require linking.
162 GLIBCXX_ENABLE_PCH($is_hosted)
163 GLIBCXX_ENABLE_THREADS
164 GLIBCXX_ENABLE_ATOMIC_BUILTINS
165 GLIBCXX_ENABLE_LOCK_POLICY
166 GLIBCXX_ENABLE_DECIMAL_FLOAT
167 GLIBCXX_ENABLE_FLOAT128
168 if test "$enable_float128" = yes; then
169 port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/abi/pre/float128.ver"
172 # Checks for compiler support that doesn't require linking.
173 GLIBCXX_CHECK_COMPILER_FEATURES
175 # Enable all the variable C++ runtime options that don't require linking.
176 GLIBCXX_ENABLE_CSTDIO
177 GLIBCXX_ENABLE_CLOCALE
178 GLIBCXX_ENABLE_ALLOCATOR
179 GLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host
180 GLIBCXX_ENABLE_LONG_LONG([yes])
181 GLIBCXX_ENABLE_WCHAR_T([yes])
182 GLIBCXX_ENABLE_C99([yes])
183 GLIBCXX_ENABLE_CONCEPT_CHECKS([no])
184 GLIBCXX_ENABLE_DEBUG_FLAGS(["-g3 -O0 -D_GLIBCXX_ASSERTIONS"])
185 GLIBCXX_ENABLE_DEBUG([no])
186 GLIBCXX_ENABLE_PARALLEL([yes])
187 GLIBCXX_ENABLE_CXX_FLAGS
188 GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no])
189 GLIBCXX_ENABLE_EXTERN_TEMPLATE([yes])
190 GLIBCXX_ENABLE_PYTHON
191 GLIBCXX_ENABLE_WERROR([no])
192 GLIBCXX_ENABLE_VTABLE_VERIFY([no])
194 # Checks for operating systems support that doesn't require linking.
195 GLIBCXX_CHECK_STDIO_PROTO
196 GLIBCXX_CHECK_MATH11_PROTO
197 GLIBCXX_CHECK_UCHAR_H
202 # For showmanyc_helper().
203 AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h)
205 GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
208 AC_CHECK_HEADERS(sys/uio.h)
211 # Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1
212 # so that the check is done with the C compiler (not C++).
213 # Checking with C++ can break a canadian cross build if either
214 # file does not exist in C but does in C++.
215 AC_CHECK_HEADERS(fenv.h complex.h)
217 # For C99 support to TR1.
218 GLIBCXX_CHECK_C99_TR1
220 # For the EOF, SEEK_CUR, and SEEK_END integer constants.
221 GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS
223 # For gettimeofday support.
224 GLIBCXX_CHECK_GETTIMEOFDAY
226 # For clock_gettime, nanosleep and sched_yield support.
227 GLIBCXX_ENABLE_LIBSTDCXX_TIME
229 # Check for tmpnam which is obsolescent in POSIX.1-2008
232 # For pthread_cond_clockwait
233 GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT
235 # For pthread_mutex_clocklock
236 GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK
238 # For pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock
239 GLIBCXX_CHECK_PTHREAD_RWLOCK_CLOCKLOCK
243 # For hardware_concurrency
244 AC_CHECK_HEADERS(sys/sysinfo.h)
245 GLIBCXX_CHECK_GET_NPROCS
246 AC_CHECK_HEADERS(unistd.h)
247 GLIBCXX_CHECK_SC_NPROCESSORS_ONLN
248 GLIBCXX_CHECK_SC_NPROC_ONLN
249 GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP
250 GLIBCXX_CHECK_SYSCTL_HW_NCPU
253 # Check for available headers.
254 AC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \
255 locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \
256 strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \
257 sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \
258 wchar.h wctype.h linux/types.h])
260 AC_CHECK_HEADERS([linux/random.h], [], [],
261 [[#ifdef HAVE_LINUX_TYPES_H
262 # include <linux/types.h>
266 AC_CHECK_HEADERS([xlocale.h])
268 # Only do link tests if native. Else, hardcode.
269 if $GLIBCXX_IS_NATIVE; then
271 # We can do more elaborate tests that assume a working linker.
274 GLIBCXX_CHECK_LINKER_FEATURES
275 GLIBCXX_CHECK_MATH_SUPPORT
276 GLIBCXX_CHECK_STDLIB_SUPPORT
278 # For /dev/random and /dev/urandom for std::random_device.
279 GLIBCXX_CHECK_DEV_RANDOM
284 AC_CHECK_FUNCS(__cxa_thread_atexit_impl __cxa_thread_atexit)
285 AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc)
286 AC_CHECK_FUNCS(_wfopen)
287 AC_CHECK_FUNCS(secure_getenv)
289 # C11 functions for C++17 library
290 AC_CHECK_FUNCS(timespec_get)
293 AC_CHECK_FUNCS(sockatmark)
295 # Non-standard functions used by C++17 std::from_chars
296 AC_CHECK_FUNCS(uselocale)
303 # This lets us hard-code the functionality we know we'll have in the cross
304 # target environment. "Let" is a sugar-coated word placed on an especially
305 # dull and tedious hack, actually.
307 # Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros
308 # that involve linking, can't be used:
309 # "cannot open sim-crt0.o"
310 # "cannot open crt0.o"
311 # etc. All this is because there currently exists no unified, consistent
312 # way for top level CC information to be passed down to target directories:
313 # newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc.
314 # When all of that is done, all of this hokey, excessive AC_DEFINE junk for
315 # crosses can be removed.
317 # If Canadian cross, then don't pick up tools from the build directory.
318 # Used only in GLIBCXX_EXPORT_INCLUDES.
319 if test -n "$with_cross_host" &&
320 test x"$build_alias" != x"$with_cross_host" &&
321 test x"$build" != x"$target";
328 # Construct crosses by hand, eliminating bits that need ld...
329 # GLIBCXX_CHECK_MATH_SUPPORT
331 # First, test for "known" system libraries. We may be using newlib even
332 # on a hosted environment.
333 if test "x${with_newlib}" = "xyes"; then
334 os_include_dir="os/newlib"
335 AC_DEFINE(HAVE_HYPOT)
337 # GLIBCXX_CHECK_STDLIB_SUPPORT
338 AC_DEFINE(HAVE_STRTOF)
340 AC_DEFINE(HAVE_ACOSF)
341 AC_DEFINE(HAVE_ASINF)
342 AC_DEFINE(HAVE_ATAN2F)
343 AC_DEFINE(HAVE_ATANF)
344 AC_DEFINE(HAVE_CEILF)
346 AC_DEFINE(HAVE_COSHF)
348 AC_DEFINE(HAVE_FABSF)
349 AC_DEFINE(HAVE_FLOORF)
350 AC_DEFINE(HAVE_FMODF)
351 AC_DEFINE(HAVE_FREXPF)
352 AC_DEFINE(HAVE_LDEXPF)
353 AC_DEFINE(HAVE_LOG10F)
355 AC_DEFINE(HAVE_MODFF)
358 AC_DEFINE(HAVE_SINHF)
359 AC_DEFINE(HAVE_SQRTF)
361 AC_DEFINE(HAVE_TANHF)
363 AC_DEFINE(HAVE_ICONV)
364 AC_DEFINE(HAVE_MEMALIGN)
369 bfin* | lm32* | mips* | moxie* | or1k* | v850*)
375 AC_DEFINE(HAVE_ALIGNED_ALLOC)
376 AC_DEFINE(HAVE_AT_QUICK_EXIT)
378 AC_DEFINE(HAVE_QUICK_EXIT)
379 AC_DEFINE(HAVE_READLINK)
380 AC_DEFINE(HAVE_SETENV)
381 AC_DEFINE(HAVE_SLEEP)
382 AC_DEFINE(HAVE_SOCKATMARK)
383 AC_DEFINE(HAVE_STRERROR_L)
384 AC_DEFINE(HAVE_SYMLINK)
385 AC_DEFINE(HAVE_TRUNCATE)
386 AC_DEFINE(HAVE_USLEEP)
389 elif test "x$with_headers" != "xno"; then
393 # At some point, we should differentiate between architectures
394 # like x86, which have long double versions, and alpha/powerpc/etc.,
395 # which don't. For the time being, punt.
396 if test x"long_double_math_on_this_cpu" = x"yes"; then
397 AC_DEFINE(HAVE_ACOSL)
398 AC_DEFINE(HAVE_ASINL)
399 AC_DEFINE(HAVE_ATAN2L)
400 AC_DEFINE(HAVE_ATANL)
401 AC_DEFINE(HAVE_CEILL)
403 AC_DEFINE(HAVE_COSHL)
405 AC_DEFINE(HAVE_FABSL)
406 AC_DEFINE(HAVE_FLOORL)
407 AC_DEFINE(HAVE_FMODL)
408 AC_DEFINE(HAVE_FREXPL)
409 AC_DEFINE(HAVE_LDEXPL)
410 AC_DEFINE(HAVE_LOG10L)
412 AC_DEFINE(HAVE_MODFL)
414 AC_DEFINE(HAVE_SINCOSL)
416 AC_DEFINE(HAVE_SINHL)
417 AC_DEFINE(HAVE_SQRTL)
419 AC_DEFINE(HAVE_TANHL)
423 # Check for _Unwind_GetIPInfo.
424 GCC_CHECK_UNWIND_GETIPINFO
426 GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])])
428 GLIBCXX_ENABLE_SYMVERS([yes])
429 AC_SUBST(libtool_VERSION)
431 GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY([yes])
433 GLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI([yes])
437 ac_ldbl_alt128_compat=no
438 ac_ldbl_ieee128_default=no
439 LONG_DOUBLE_COMPAT_FLAGS="-mlong-double-64"
440 LONG_DOUBLE_128_FLAGS=
441 LONG_DOUBLE_ALT128_COMPAT_FLAGS=
443 powerpc*-*-linux* | \
448 #if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__))
449 #error no need for long double compatibility
451 ], [ac_ldbl_compat=yes], [ac_ldbl_compat=no])
452 if test "$ac_ldbl_compat" = yes; then
453 AC_DEFINE([_GLIBCXX_LONG_DOUBLE_COMPAT],1,
454 [Define if compatibility should be provided for -mlong-double-64.])
455 port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver"
458 LONG_DOUBLE_COMPAT_FLAGS="$LONG_DOUBLE_COMPAT_FLAGS -mno-gnu-attribute"
459 # Check for IEEE128 support in libm:
460 AC_CHECK_LIB(m, __frexpieee128,
461 [ac_ldbl_ieee128_in_libc=yes],
462 [ac_ldbl_ieee128_in_libc=no])
463 if test $ac_ldbl_ieee128_in_libc = yes; then
464 # Determine which long double format is the compiler's default:
466 #ifndef __LONG_DOUBLE_IEEE128__
467 #error compiler defaults to ibm128
469 ], [ac_ldbl_ieee128_default=yes], [ac_ldbl_ieee128_default=no])
470 # Library objects should use default long double format.
471 if test "$ac_ldbl_ieee128_default" = yes; then
472 LONG_DOUBLE_128_FLAGS="-mno-gnu-attribute"
473 # Except for the ones that explicitly use these flags:
474 LONG_DOUBLE_ALT128_COMPAT_FLAGS="-mabi=ibmlongdouble -mno-gnu-attribute -Wno-psabi"
476 LONG_DOUBLE_128_FLAGS="-mno-gnu-attribute"
477 LONG_DOUBLE_ALT128_COMPAT_FLAGS="-mabi=ieeelongdouble -mno-gnu-attribute -Wno-psabi"
479 AC_DEFINE([_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT],1,
480 [Define if compatibility should be provided for alternative 128-bit long double formats.])
481 port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/os/gnu-linux/ldbl-ieee128-extra.ver"
482 ac_ldbl_alt128_compat=yes
484 ac_ldbl_alt128_compat=no
490 AC_SUBST(LONG_DOUBLE_COMPAT_FLAGS)
491 AC_SUBST(LONG_DOUBLE_128_FLAGS)
492 AC_SUBST(LONG_DOUBLE_ALT128_COMPAT_FLAGS)
493 GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes)
494 GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_ALT128_COMPAT, test $ac_ldbl_alt128_compat = yes)
496 # Check if assembler supports disabling hardware capability support.
497 GCC_CHECK_ASSEMBLER_HWCAP
499 # Check if assembler supports rdrand opcode.
500 GLIBCXX_CHECK_X86_RDRAND
501 # Check if assembler supports rdseed opcode.
502 GLIBCXX_CHECK_X86_RDSEED
504 # Check for other random number APIs
505 GLIBCXX_CHECK_GETENTROPY
506 GLIBCXX_CHECK_ARC4RANDOM
508 # This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE.
509 GLIBCXX_CONFIGURE_TESTSUITE
511 # For gthread support. Depends on GLIBCXX_ENABLE_SYMVERS.
512 GLIBCXX_CHECK_GTHREADS
515 AC_CHECK_HEADERS([fcntl.h dirent.h sys/statvfs.h utime.h])
516 GLIBCXX_ENABLE_FILESYSTEM_TS
517 GLIBCXX_CHECK_FILESYSTEM_DEPS
519 GLIBCXX_ENABLE_BACKTRACE
522 AC_CHECK_HEADERS([fcntl.h sys/ioctl.h sys/socket.h sys/uio.h poll.h netdb.h arpa/inet.h netinet/in.h netinet/tcp.h])
523 AC_CHECK_DECL(F_GETFL,,,[#include <fcntl.h>])
524 AC_CHECK_DECL(F_SETFL,,,[#include <fcntl.h>])
525 if test "$ac_cv_have_decl_F_GETFL$ac_cv_have_decl_F_SETFL" = yesyes ; then
526 AC_CHECK_DECL(O_NONBLOCK,,,[#include <fcntl.h>])
529 # For Transactional Memory TS
530 GLIBCXX_CHECK_SIZE_T_MANGLING
532 # Check which release added std::exception_ptr for the target
533 GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER
535 # For libsupc++/eh_alloc.cc defaults.
536 GLIBCXX_EMERGENCY_EH_ALLOC
538 # For src/c++20/tzdb.cc defaults.
541 # Define documentation rules conditionally.
543 # See if makeinfo has been installed and is modern enough
544 # that we can use it.
545 ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version],
546 [GNU texinfo.* \([0-9][0-9.]*\)],
547 [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
548 AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes")
551 AC_CHECK_PROG([DOXYGEN], doxygen, yes, no)
552 AC_CHECK_PROG([DOT], dot, yes, no)
555 AC_CHECK_PROG([XMLCATALOG], xmlcatalog, yes, no)
556 AC_CHECK_PROG([XSLTPROC], xsltproc, yes, no)
557 AC_CHECK_PROG([XMLLINT], xmllint, yes, no)
558 GLIBCXX_CONFIGURE_DOCBOOK
560 # Check for xml/html dependencies.
561 AM_CONDITIONAL(BUILD_XML,
562 test $ac_cv_prog_DOXYGEN = "yes" &&
563 test $ac_cv_prog_DOT = "yes" &&
564 test $ac_cv_prog_XSLTPROC = "yes" &&
565 test $ac_cv_prog_XMLLINT = "yes" &&
566 test $glibcxx_stylesheets = "yes")
568 AM_CONDITIONAL(BUILD_HTML,
569 test $ac_cv_prog_DOXYGEN = "yes" &&
570 test $ac_cv_prog_DOT = "yes" &&
571 test $ac_cv_prog_XSLTPROC = "yes" &&
572 test $ac_cv_prog_XMLLINT = "yes" &&
573 test $glibcxx_stylesheets = "yes")
575 # Check for man dependencies.
576 AM_CONDITIONAL(BUILD_MAN,
577 test $ac_cv_prog_DOXYGEN = "yes" &&
578 test $ac_cv_prog_DOT = "yes")
580 # Check for pdf dependencies.
581 AC_CHECK_PROG([DBLATEX], dblatex, yes, no)
582 AC_CHECK_PROG([PDFLATEX], pdflatex, yes, no)
583 AM_CONDITIONAL(BUILD_PDF,
584 test $ac_cv_prog_DOXYGEN = "yes" &&
585 test $ac_cv_prog_DOT = "yes" &&
586 test $ac_cv_prog_XSLTPROC = "yes" &&
587 test $ac_cv_prog_XMLLINT = "yes" &&
588 test $ac_cv_prog_DBLATEX = "yes" &&
589 test $ac_cv_prog_PDFLATEX = "yes")
592 *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;;
593 * ) glibcxx_include_dir_notparallel=no ;;
595 AM_CONDITIONAL(INCLUDE_DIR_NOTPARALLEL,
596 test $glibcxx_include_dir_notparallel = "yes")
598 # Propagate the target-specific source directories through the build chain.
599 ATOMICITY_SRCDIR=config/${atomicity_dir}
600 ATOMIC_WORD_SRCDIR=config/${atomic_word_dir}
601 ATOMIC_FLAGS=${atomic_flags}
602 CPU_DEFINES_SRCDIR=config/${cpu_defines_dir}
603 OS_INC_SRCDIR=config/${os_include_dir}
604 ERROR_CONSTANTS_SRCDIR=config/${error_constants_dir}
605 ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir}
606 CPU_OPT_EXT_RANDOM=config/${cpu_opt_ext_random}
607 CPU_OPT_BITS_RANDOM=config/${cpu_opt_bits_random}
608 AC_SUBST(ATOMICITY_SRCDIR)
609 AC_SUBST(ATOMIC_WORD_SRCDIR)
610 AC_SUBST(ATOMIC_FLAGS)
611 AC_SUBST(CPU_DEFINES_SRCDIR)
612 AC_SUBST(ABI_TWEAKS_SRCDIR)
613 AC_SUBST(OS_INC_SRCDIR)
614 AC_SUBST(ERROR_CONSTANTS_SRCDIR)
615 AC_SUBST(CPU_OPT_EXT_RANDOM)
616 AC_SUBST(CPU_OPT_BITS_RANDOM)
618 # Conditionalize the makefile for this target machine.
620 for f in ${tmake_file}
622 if test -f ${srcdir}/config/$f
624 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
627 tmake_file="${tmake_file_}"
630 # Add CET specific flags if Intel CET is enabled.
631 GCC_CET_FLAGS(CET_FLAGS)
632 EXTRA_CXX_FLAGS="$EXTRA_CXX_FLAGS $CET_FLAGS"
633 EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS"
634 AC_SUBST(EXTRA_CFLAGS)
635 AC_SUBST(EXTRA_CXX_FLAGS)
637 # Determine cross-compile flags and AM_CONDITIONALs.
638 #AC_SUBST(GLIBCXX_IS_NATIVE)
639 #AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes)
640 GLIBCXX_EVALUATE_CONDITIONALS
644 if test ${multilib} = yes; then
645 multilib_arg="--enable-multilib"
650 # Export all the install information.
651 GLIBCXX_EXPORT_INSTALL_INFO
653 # Export all the include and flag information to Makefiles.
654 GLIBCXX_EXPORT_INCLUDES
657 # Determine what GCC version number to use in filesystem paths.
660 dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros,
661 dnl which can all be called multiple times as needed, plus one (different)
662 dnl AC_OUTPUT macro. This one lists the files to be created:
663 AC_CONFIG_FILES(Makefile)
664 AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags])
665 AC_CONFIG_FILES([scripts/extract_symvers],[chmod +x scripts/extract_symvers])
666 AC_CONFIG_FILES([doc/xsl/customization.xsl])
667 AC_CONFIG_FILES([src/libbacktrace/backtrace-supported.h])
669 # Multilibs need MULTISUBDIR defined correctly in certain makefiles so
670 # that multilib installs will end up installed in the correct place.
671 # The testsuite needs it for multilib-aware ABI baseline files.
672 # To work around this not being passed down from config-ml.in ->
673 # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually
674 # append it here. Only modify Makefiles that have just been created.
676 # Also, get rid of this simulated-VPATH thing that automake does.
677 AC_CONFIG_FILES(AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]),
678 [cat > vpsed$$ << \_EOF
679 s!`test -f '$<' || echo '$(srcdir)/'`!!
681 sed -f vpsed$$ $ac_file > tmp$$
684 echo 'MULTISUBDIR =' >> $ac_file
686 . ${multi_basedir}/config-ml.in
687 AS_UNSET([ml_norecursion])
690 AC_CONFIG_COMMANDS([generate-headers],
691 [(cd include && ${MAKE-make} pch_build= )])
693 dnl And this actually makes things happen: