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 || test $targetos = darwin ; then
49 GLIBCXX_IS_NATIVE=true
58 GLIBCXX_IS_NATIVE=true
61 # In the case that we're building without headers, we won't have <stdio.h>
62 # available. In these cases, we have to instruct autotools to never include
63 # <stdio.h> as a part of default headers.
64 m4_version_prereq([2.70], [], [
65 if test "x$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)
111 AM_CONDITIONAL([ENABLE_DARWIN_AT_RPATH], [test x$enable_darwin_at_rpath = xyes])
114 darwin*) os_is_darwin=yes ;;
117 AM_CONDITIONAL([OS_IS_DARWIN], [test x${os_is_darwin} = xyes])
119 if test "$enable_vtable_verify" = yes; then
120 predep_objects_CXX="${predep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_start.o"
121 postdep_objects_CXX="${postdep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_end.o"
125 # libtool variables for C++ shared and position-independent compiles.
127 # Use glibcxx_lt_pic_flag to designate the automake variable
128 # used to encapsulate the default libtool approach to creating objects
129 # with position-independent code. Default: -prefer-pic.
131 # Use glibcxx_compiler_shared_flag to designate a compile-time flags for
132 # creating shared objects. Default: -D_GLIBCXX_SHARED.
134 # Use glibcxx_compiler_pic_flag to designate a compile-time flags for
135 # creating position-independent objects. This varies with the target
136 # hardware and operating system, but is often: -DPIC -fPIC.
137 if test "$enable_shared" = yes; then
138 glibcxx_lt_pic_flag="-prefer-pic"
139 glibcxx_compiler_pic_flag="$lt_prog_compiler_pic_CXX"
140 glibcxx_compiler_shared_flag="-D_GLIBCXX_SHARED"
144 glibcxx_compiler_pic_flag=
145 glibcxx_compiler_shared_flag=
147 AC_SUBST(glibcxx_lt_pic_flag)
148 AC_SUBST(glibcxx_compiler_pic_flag)
149 AC_SUBST(glibcxx_compiler_shared_flag)
151 # Override the libtool's pic_flag and pic_mode.
152 # Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT.
153 # NB: this impacts --with-pic and --without-pic.
154 lt_prog_compiler_pic_CXX="$glibcxx_compiler_pic_flag $glibcxx_compiler_shared_flag"
157 # Eliminate -lstdc++ addition to postdeps for cross compiles.
158 postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'`
160 # Possibly disable most of the library.
161 ## TODO: Consider skipping unncessary tests altogether in this case, rather
162 ## than just ignoring the results. Faster /and/ more correct, win win.
163 GLIBCXX_ENABLE_HOSTED
165 # Enable descriptive messages to standard output on termination.
166 GLIBCXX_ENABLE_VERBOSE
168 # Enable compiler support that doesn't require linking.
169 GLIBCXX_ENABLE_PCH($is_hosted)
170 GLIBCXX_ENABLE_THREADS
171 GLIBCXX_ENABLE_ATOMIC_BUILTINS
172 GLIBCXX_ENABLE_LOCK_POLICY
173 GLIBCXX_ENABLE_DECIMAL_FLOAT
174 GLIBCXX_ENABLE_FLOAT128
175 if test "$enable_float128" = yes; then
176 port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/abi/pre/float128.ver"
179 # Checks for compiler support that doesn't require linking.
180 GLIBCXX_CHECK_COMPILER_FEATURES
182 # Enable all the variable C++ runtime options that don't require linking.
183 GLIBCXX_ENABLE_CSTDIO
184 GLIBCXX_ENABLE_CLOCALE
185 GLIBCXX_ENABLE_ALLOCATOR
186 GLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host
187 GLIBCXX_ENABLE_LONG_LONG([yes])
188 GLIBCXX_ENABLE_WCHAR_T([yes])
189 GLIBCXX_ENABLE_C99([yes])
190 GLIBCXX_ENABLE_CONCEPT_CHECKS([no])
191 GLIBCXX_ENABLE_DEBUG_FLAGS(["-g3 -O0 -D_GLIBCXX_ASSERTIONS"])
192 GLIBCXX_ENABLE_DEBUG([no])
193 GLIBCXX_ENABLE_PARALLEL([yes])
194 GLIBCXX_ENABLE_CXX_FLAGS
195 GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no])
196 GLIBCXX_ENABLE_EXTERN_TEMPLATE([yes])
197 GLIBCXX_ENABLE_PYTHON
198 GLIBCXX_ENABLE_WERROR([no])
199 GLIBCXX_ENABLE_VTABLE_VERIFY([no])
201 # Checks for operating systems support that doesn't require linking.
202 GLIBCXX_CHECK_STDIO_PROTO
203 GLIBCXX_CHECK_MATH11_PROTO
204 GLIBCXX_CHECK_UCHAR_H
209 # For showmanyc_helper().
210 AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h)
212 GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
215 AC_CHECK_HEADERS(sys/uio.h)
218 # Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1
219 # so that the check is done with the C compiler (not C++).
220 # Checking with C++ can break a canadian cross build if either
221 # file does not exist in C but does in C++.
222 AC_CHECK_HEADERS(fenv.h complex.h)
224 # For C99 support to TR1.
225 GLIBCXX_CHECK_C99_TR1
227 # For the EOF, SEEK_CUR, and SEEK_END integer constants.
228 GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS
230 # For gettimeofday support.
231 GLIBCXX_CHECK_GETTIMEOFDAY
233 # For clock_gettime, nanosleep and sched_yield support.
234 GLIBCXX_ENABLE_LIBSTDCXX_TIME
236 # Check for tmpnam which is obsolescent in POSIX.1-2008
239 # For pthread_cond_clockwait
240 GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT
242 # For pthread_mutex_clocklock
243 GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK
245 # For pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock
246 GLIBCXX_CHECK_PTHREAD_RWLOCK_CLOCKLOCK
250 # For hardware_concurrency
251 AC_CHECK_HEADERS(sys/sysinfo.h)
252 GLIBCXX_CHECK_GET_NPROCS
253 AC_CHECK_HEADERS(unistd.h)
254 GLIBCXX_CHECK_SC_NPROCESSORS_ONLN
255 GLIBCXX_CHECK_SC_NPROC_ONLN
256 GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP
257 GLIBCXX_CHECK_SYSCTL_HW_NCPU
260 # Check for available headers.
261 AC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \
262 locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \
263 strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \
264 sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \
265 wchar.h wctype.h linux/types.h])
267 AC_CHECK_HEADERS([linux/random.h], [], [],
268 [[#ifdef HAVE_LINUX_TYPES_H
269 # include <linux/types.h>
273 AC_CHECK_HEADERS([xlocale.h])
275 # Only do link tests if native. Else, hardcode.
276 if $GLIBCXX_IS_NATIVE; then
278 # We can do more elaborate tests that assume a working linker.
281 GLIBCXX_CHECK_LINKER_FEATURES
282 GLIBCXX_CHECK_MATH_SUPPORT
283 GLIBCXX_CHECK_STDLIB_SUPPORT
285 # For /dev/random and /dev/urandom for std::random_device.
286 GLIBCXX_CHECK_DEV_RANDOM
291 AC_CHECK_FUNCS(__cxa_thread_atexit_impl __cxa_thread_atexit)
292 AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc)
293 AC_CHECK_FUNCS(_wfopen)
294 AC_CHECK_FUNCS(secure_getenv)
296 # C11 functions for C++17 library
297 AC_CHECK_FUNCS(timespec_get)
300 AC_CHECK_FUNCS(sockatmark)
302 # Non-standard functions used by C++17 std::from_chars
303 AC_CHECK_FUNCS(uselocale)
310 # This lets us hard-code the functionality we know we'll have in the cross
311 # target environment. "Let" is a sugar-coated word placed on an especially
312 # dull and tedious hack, actually.
314 # Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros
315 # that involve linking, can't be used:
316 # "cannot open sim-crt0.o"
317 # "cannot open crt0.o"
318 # etc. All this is because there currently exists no unified, consistent
319 # way for top level CC information to be passed down to target directories:
320 # newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc.
321 # When all of that is done, all of this hokey, excessive AC_DEFINE junk for
322 # crosses can be removed.
324 # If Canadian cross, then don't pick up tools from the build directory.
325 # Used only in GLIBCXX_EXPORT_INCLUDES.
326 if test -n "$with_cross_host" &&
327 test x"$build_alias" != x"$with_cross_host" &&
328 test x"$build" != x"$target";
335 # Construct crosses by hand, eliminating bits that need ld...
336 # GLIBCXX_CHECK_MATH_SUPPORT
338 # First, test for "known" system libraries. We may be using newlib even
339 # on a hosted environment.
340 if test "x${with_newlib}" = "xyes"; then
341 os_include_dir="os/newlib"
342 AC_DEFINE(HAVE_HYPOT)
344 # GLIBCXX_CHECK_STDLIB_SUPPORT
345 AC_DEFINE(HAVE_STRTOF)
347 AC_DEFINE(HAVE_ACOSF)
348 AC_DEFINE(HAVE_ASINF)
349 AC_DEFINE(HAVE_ATAN2F)
350 AC_DEFINE(HAVE_ATANF)
351 AC_DEFINE(HAVE_CEILF)
353 AC_DEFINE(HAVE_COSHF)
355 AC_DEFINE(HAVE_FABSF)
356 AC_DEFINE(HAVE_FLOORF)
357 AC_DEFINE(HAVE_FMODF)
358 AC_DEFINE(HAVE_FREXPF)
359 AC_DEFINE(HAVE_HYPOTF)
360 AC_DEFINE(HAVE_LDEXPF)
361 AC_DEFINE(HAVE_LOG10F)
363 AC_DEFINE(HAVE_MODFF)
366 AC_DEFINE(HAVE_SINHF)
367 AC_DEFINE(HAVE_SQRTF)
369 AC_DEFINE(HAVE_TANHF)
371 dnl # Support for the long version of some math libraries depends on
372 dnl # architecture and newlib version. So test for their availability
373 dnl # rather than hardcoding that information.
374 GLIBCXX_CHECK_MATH_DECLS([
375 acosl asinl atan2l atanl ceill coshl cosl expl fabsl floorl fmodl
376 frexpl hypotl ldexpl log10l logl modfl powl sinhl sinl sqrtl
379 AC_DEFINE(HAVE_ICONV)
380 AC_DEFINE(HAVE_MEMALIGN)
385 bfin* | lm32* | mips* | moxie* | or1k* | v850*)
391 AC_DEFINE(HAVE_ALIGNED_ALLOC)
392 AC_DEFINE(HAVE_AT_QUICK_EXIT)
394 AC_DEFINE(HAVE_QUICK_EXIT)
395 AC_DEFINE(HAVE_READLINK)
396 AC_DEFINE(HAVE_SETENV)
397 AC_DEFINE(HAVE_SLEEP)
398 AC_DEFINE(HAVE_SOCKATMARK)
399 AC_DEFINE(HAVE_STRERROR_L)
400 AC_DEFINE(HAVE_SYMLINK)
401 AC_DEFINE(HAVE_TRUNCATE)
402 AC_DEFINE(HAVE_USLEEP)
405 elif test "x$with_headers" != "xno"; then
409 # At some point, we should differentiate between architectures
410 # like x86, which have long double versions, and alpha/powerpc/etc.,
411 # which don't. For the time being, punt.
412 if test x"long_double_math_on_this_cpu" = x"yes"; then
413 AC_DEFINE(HAVE_ACOSL)
414 AC_DEFINE(HAVE_ASINL)
415 AC_DEFINE(HAVE_ATAN2L)
416 AC_DEFINE(HAVE_ATANL)
417 AC_DEFINE(HAVE_CEILL)
419 AC_DEFINE(HAVE_COSHL)
421 AC_DEFINE(HAVE_FABSL)
422 AC_DEFINE(HAVE_FLOORL)
423 AC_DEFINE(HAVE_FMODL)
424 AC_DEFINE(HAVE_FREXPL)
425 AC_DEFINE(HAVE_LDEXPL)
426 AC_DEFINE(HAVE_LOG10L)
428 AC_DEFINE(HAVE_MODFL)
430 AC_DEFINE(HAVE_SINCOSL)
432 AC_DEFINE(HAVE_SINHL)
433 AC_DEFINE(HAVE_SQRTL)
435 AC_DEFINE(HAVE_TANHL)
439 # Check for _Unwind_GetIPInfo.
440 GCC_CHECK_UNWIND_GETIPINFO
442 GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])])
444 GLIBCXX_ENABLE_SYMVERS([yes])
445 AC_SUBST(libtool_VERSION)
447 GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY([yes])
449 GLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI([yes])
453 ac_ldbl_alt128_compat=no
454 ac_ldbl_ieee128_default=no
455 LONG_DOUBLE_COMPAT_FLAGS="-mlong-double-64"
456 LONG_DOUBLE_128_FLAGS=
457 LONG_DOUBLE_ALT128_COMPAT_FLAGS=
459 powerpc*-*-linux* | \
464 #if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__))
465 #error no need for long double compatibility
467 ], [ac_ldbl_compat=yes], [ac_ldbl_compat=no])
468 if test "$ac_ldbl_compat" = yes; then
469 AC_DEFINE([_GLIBCXX_LONG_DOUBLE_COMPAT],1,
470 [Define if compatibility should be provided for -mlong-double-64.])
471 port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver"
474 LONG_DOUBLE_COMPAT_FLAGS="$LONG_DOUBLE_COMPAT_FLAGS -mno-gnu-attribute"
475 # Check for IEEE128 support in libm:
476 AC_CHECK_LIB(m, __frexpieee128,
477 [ac_ldbl_ieee128_in_libc=yes],
478 [ac_ldbl_ieee128_in_libc=no])
479 if test $ac_ldbl_ieee128_in_libc = yes; then
480 # Determine which long double format is the compiler's default:
482 #ifndef __LONG_DOUBLE_IEEE128__
483 #error compiler defaults to ibm128
485 ], [ac_ldbl_ieee128_default=yes], [ac_ldbl_ieee128_default=no])
486 # Library objects should use default long double format.
487 if test "$ac_ldbl_ieee128_default" = yes; then
488 LONG_DOUBLE_128_FLAGS="-mno-gnu-attribute"
489 # Except for the ones that explicitly use these flags:
490 LONG_DOUBLE_ALT128_COMPAT_FLAGS="-mabi=ibmlongdouble -mno-gnu-attribute -Wno-psabi"
492 LONG_DOUBLE_128_FLAGS="-mno-gnu-attribute"
493 LONG_DOUBLE_ALT128_COMPAT_FLAGS="-mabi=ieeelongdouble -mno-gnu-attribute -Wno-psabi"
495 AC_DEFINE([_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT],1,
496 [Define if compatibility should be provided for alternative 128-bit long double formats.])
497 port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/os/gnu-linux/ldbl-ieee128-extra.ver"
498 ac_ldbl_alt128_compat=yes
500 ac_ldbl_alt128_compat=no
506 AC_SUBST(LONG_DOUBLE_COMPAT_FLAGS)
507 AC_SUBST(LONG_DOUBLE_128_FLAGS)
508 AC_SUBST(LONG_DOUBLE_ALT128_COMPAT_FLAGS)
509 GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes)
510 GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_ALT128_COMPAT, test $ac_ldbl_alt128_compat = yes)
512 # Check if assembler supports disabling hardware capability support.
513 GCC_CHECK_ASSEMBLER_HWCAP
515 # Check if assembler supports rdrand opcode.
516 GLIBCXX_CHECK_X86_RDRAND
517 # Check if assembler supports rdseed opcode.
518 GLIBCXX_CHECK_X86_RDSEED
520 # Check for other random number APIs
521 GLIBCXX_CHECK_GETENTROPY
522 GLIBCXX_CHECK_ARC4RANDOM
524 # This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE.
525 GLIBCXX_CONFIGURE_TESTSUITE
527 # For gthread support. Depends on GLIBCXX_ENABLE_SYMVERS.
528 GLIBCXX_CHECK_GTHREADS
531 AC_CHECK_HEADERS([fcntl.h dirent.h sys/statvfs.h utime.h])
532 GLIBCXX_ENABLE_FILESYSTEM_TS
533 GLIBCXX_CHECK_FILESYSTEM_DEPS
535 GLIBCXX_ENABLE_BACKTRACE
538 AC_CHECK_HEADERS([fcntl.h sys/ioctl.h sys/socket.h sys/uio.h poll.h netdb.h arpa/inet.h netinet/in.h netinet/tcp.h])
539 AC_CHECK_DECL(F_GETFL,,,[#include <fcntl.h>])
540 AC_CHECK_DECL(F_SETFL,,,[#include <fcntl.h>])
541 if test "$ac_cv_have_decl_F_GETFL$ac_cv_have_decl_F_SETFL" = yesyes ; then
542 AC_CHECK_DECL(O_NONBLOCK,,,[#include <fcntl.h>])
545 # For Transactional Memory TS
546 GLIBCXX_CHECK_SIZE_T_MANGLING
548 # Check which release added std::exception_ptr for the target
549 GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER
551 # For libsupc++/eh_alloc.cc defaults.
552 GLIBCXX_EMERGENCY_EH_ALLOC
554 # For src/c++20/tzdb.cc defaults.
557 # For src/c++11/shared_ptr.cc alignment.
558 GLIBCXX_CHECK_ALIGNAS_CACHELINE
560 # For using init_priority in ios_init.cc
561 GLIBCXX_CHECK_INIT_PRIORITY
563 # For __basic_file::native_handle()
564 GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES
566 # For std::text_encoding
567 GLIBCXX_CHECK_TEXT_ENCODING
569 # Define documentation rules conditionally.
571 # See if makeinfo has been installed and is modern enough
572 # that we can use it.
573 ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version],
574 [GNU texinfo.* \([0-9][0-9.]*\)],
575 [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
576 AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes")
579 AC_CHECK_PROG([DOXYGEN], doxygen, yes, no)
580 AC_CHECK_PROG([DOT], dot, yes, no)
583 AC_CHECK_PROG([XMLCATALOG], xmlcatalog, yes, no)
584 AC_CHECK_PROG([XSLTPROC], xsltproc, yes, no)
585 AC_CHECK_PROG([XMLLINT], xmllint, yes, no)
586 GLIBCXX_CONFIGURE_DOCBOOK
588 # Check for xml/html dependencies.
589 AM_CONDITIONAL(BUILD_XML,
590 test $ac_cv_prog_DOXYGEN = "yes" &&
591 test $ac_cv_prog_DOT = "yes" &&
592 test $ac_cv_prog_XSLTPROC = "yes" &&
593 test $ac_cv_prog_XMLLINT = "yes" &&
594 test $glibcxx_stylesheets = "yes")
596 AM_CONDITIONAL(BUILD_HTML,
597 test $ac_cv_prog_DOXYGEN = "yes" &&
598 test $ac_cv_prog_DOT = "yes" &&
599 test $ac_cv_prog_XSLTPROC = "yes" &&
600 test $ac_cv_prog_XMLLINT = "yes" &&
601 test $glibcxx_stylesheets = "yes")
603 # Check for man dependencies.
604 AM_CONDITIONAL(BUILD_MAN,
605 test $ac_cv_prog_DOXYGEN = "yes" &&
606 test $ac_cv_prog_DOT = "yes")
608 # Check for pdf dependencies.
609 AC_CHECK_PROG([DBLATEX], dblatex, yes, no)
610 AC_CHECK_PROG([PDFLATEX], pdflatex, yes, no)
611 AM_CONDITIONAL(BUILD_PDF,
612 test $ac_cv_prog_DOXYGEN = "yes" &&
613 test $ac_cv_prog_DOT = "yes" &&
614 test $ac_cv_prog_XSLTPROC = "yes" &&
615 test $ac_cv_prog_XMLLINT = "yes" &&
616 test $ac_cv_prog_DBLATEX = "yes" &&
617 test $ac_cv_prog_PDFLATEX = "yes")
620 *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;;
621 * ) glibcxx_include_dir_notparallel=no ;;
623 AM_CONDITIONAL(INCLUDE_DIR_NOTPARALLEL,
624 test $glibcxx_include_dir_notparallel = "yes")
626 # Propagate the target-specific source directories through the build chain.
627 ATOMICITY_SRCDIR=config/${atomicity_dir}
628 ATOMIC_WORD_SRCDIR=config/${atomic_word_dir}
629 ATOMIC_FLAGS=${atomic_flags}
630 CPU_DEFINES_SRCDIR=config/${cpu_defines_dir}
631 OS_INC_SRCDIR=config/${os_include_dir}
632 ERROR_CONSTANTS_SRCDIR=config/${error_constants_dir}
633 ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir}
634 CPU_OPT_EXT_RANDOM=config/${cpu_opt_ext_random}
635 CPU_OPT_BITS_RANDOM=config/${cpu_opt_bits_random}
636 AC_SUBST(ATOMICITY_SRCDIR)
637 AC_SUBST(ATOMIC_WORD_SRCDIR)
638 AC_SUBST(ATOMIC_FLAGS)
639 AC_SUBST(CPU_DEFINES_SRCDIR)
640 AC_SUBST(ABI_TWEAKS_SRCDIR)
641 AC_SUBST(OS_INC_SRCDIR)
642 AC_SUBST(ERROR_CONSTANTS_SRCDIR)
643 AC_SUBST(CPU_OPT_EXT_RANDOM)
644 AC_SUBST(CPU_OPT_BITS_RANDOM)
646 # Conditionalize the makefile for this target machine.
648 for f in ${tmake_file}
650 if test -f ${srcdir}/config/$f
652 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
655 tmake_file="${tmake_file_}"
658 # Add CET specific flags if Intel CET is enabled.
659 GCC_CET_FLAGS(CET_FLAGS)
660 EXTRA_CXX_FLAGS="$EXTRA_CXX_FLAGS $CET_FLAGS"
661 EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS"
662 AC_SUBST(EXTRA_CFLAGS)
663 AC_SUBST(EXTRA_CXX_FLAGS)
665 # Determine cross-compile flags and AM_CONDITIONALs.
666 #AC_SUBST(GLIBCXX_IS_NATIVE)
667 #AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes)
668 GLIBCXX_EVALUATE_CONDITIONALS
672 if test ${multilib} = yes; then
673 multilib_arg="--enable-multilib"
678 # Export all the install information.
679 GLIBCXX_EXPORT_INSTALL_INFO
681 # Export all the include and flag information to Makefiles.
682 GLIBCXX_EXPORT_INCLUDES
685 # Determine what GCC version number to use in filesystem paths.
688 dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros,
689 dnl which can all be called multiple times as needed, plus one (different)
690 dnl AC_OUTPUT macro. This one lists the files to be created:
691 AC_CONFIG_FILES(Makefile)
692 AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags])
693 AC_CONFIG_FILES([scripts/extract_symvers],[chmod +x scripts/extract_symvers])
694 AC_CONFIG_FILES([doc/xsl/customization.xsl])
695 AC_CONFIG_FILES([src/libbacktrace/backtrace-supported.h])
697 # Multilibs need MULTISUBDIR defined correctly in certain makefiles so
698 # that multilib installs will end up installed in the correct place.
699 # The testsuite needs it for multilib-aware ABI baseline files.
700 # To work around this not being passed down from config-ml.in ->
701 # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually
702 # append it here. Only modify Makefiles that have just been created.
704 # Also, get rid of this simulated-VPATH thing that automake does.
705 AC_CONFIG_FILES(AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]),
706 [cat > vpsed$$ << \_EOF
707 s!`test -f '$<' || echo '$(srcdir)/'`!!
709 sed -f vpsed$$ $ac_file > tmp$$
712 echo 'MULTISUBDIR =' >> $ac_file
714 . ${multi_basedir}/config-ml.in
715 AS_UNSET([ml_norecursion])
718 AC_CONFIG_COMMANDS([generate-headers],
719 [(cd include && ${MAKE-make} pch_build= )])
721 dnl And this actually makes things happen: