dnl aclocal.m4 generated automatically by aclocal 1.4 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl This program is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A dnl PARTICULAR PURPOSE. dnl dnl Initialize configure bits. dnl dnl GLIBCPP_CONFIGURE AC_DEFUN(GLIBCPP_CONFIGURE, [ dnl Default to --enable-multilib AC_ARG_ENABLE(multilib, [ --enable-multilib build hella library versions (default)], [case "${enableval}" in yes) multilib=yes ;; no) multilib=no ;; *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;; esac], [multilib=yes])dnl glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3 AC_SUBST(glibcpp_basedir) AM_INIT_AUTOMAKE(libstdc++, 3.0.0) # Never versions of autoconf add an underscore to these functions. # Prevent future problems ... ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))]) ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))]) ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))]) ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))]) # AC_PROG_CC # FIXME: We temporarily define our own version of AC_PROG_CC. This is # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We # are probably using a cross compiler, which will not be able to fully # link an executable. This should really be fixed in autoconf # itself. AC_DEFUN(LIB_AC_PROG_CC, [AC_BEFORE([$0], [AC_PROG_CPP])dnl dnl Fool anybody using AC_PROG_CC. AC_PROVIDE([AC_PROG_CC]) AC_CHECK_PROG(CC, gcc, gcc) if test -z "$CC"; then AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) fi AC_PROG_CC_GNU if test $ac_cv_prog_gcc = yes; then GCC=yes dnl Check whether -g works, even if CFLAGS is set, in case the package dnl plays around with CFLAGS (such as to build both debugging and dnl normal versions of a library), tasteless as that idea is. ac_test_CFLAGS="${CFLAGS+set}" ac_save_CFLAGS="$CFLAGS" CFLAGS= AC_PROG_CC_G if test "$ac_test_CFLAGS" = set; then CFLAGS="$ac_save_CFLAGS" elif test $ac_cv_prog_cc_g = yes; then CFLAGS="-g -O2" else CFLAGS="-O2" fi else GCC= test "${CFLAGS+set}" = set || CFLAGS="-g" fi ]) LIB_AC_PROG_CC # Can't just call these here as g++ requires libstc++ to be built.... # AC_PROG_CXX # Likewise for AC_PROG_CXX. AC_DEFUN(LIB_AC_PROG_CXX, [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl dnl Fool anybody using AC_PROG_CXX. AC_PROVIDE([AC_PROG_CXX]) # Use glibcpp_CXX so that we do not cause CXX to be cached with the # flags that come in CXX while configuring libstdc++. They're different # from those used for all other target libraries. If CXX is set in # the environment, respect that here. glibcpp_CXX=$CXX AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc) AC_SUBST(glibcpp_CXX) CXX=$glibcpp_CXX test -z "$glibcpp_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) AC_PROG_CXX_GNU if test $ac_cv_prog_gxx = yes; then GXX=yes dnl Check whether -g works, even if CXXFLAGS is set, in case the package dnl plays around with CXXFLAGS (such as to build both debugging and dnl normal versions of a library), tasteless as that idea is. ac_test_CXXFLAGS="${CXXFLAGS+set}" ac_save_CXXFLAGS="$CXXFLAGS" CXXFLAGS= AC_PROG_CXX_G if test "$ac_test_CXXFLAGS" = set; then CXXFLAGS="$ac_save_CXXFLAGS" elif test $ac_cv_prog_cxx_g = yes; then CXXFLAGS="-g -O2" else CXXFLAGS="-O2" fi else GXX= test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" fi ]) LIB_AC_PROG_CXX AC_CHECK_TOOL(AS, as) AC_CHECK_TOOL(AR, ar) AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error) AC_PROG_INSTALL AM_MAINTAINER_MODE # We need AC_EXEEXT to keep automake happy in cygnus mode. However, # at least currently, we never actually build a program, so we never # need to use $(EXEEXT). Moreover, the test for EXEEXT normally # fails, because we are probably configuring with a cross compiler # which cant create executables. So we include AC_EXEEXT to keep # automake happy, but we dont execute it, since we dont care about # the result. if false; then # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands # to nothing, so nothing would remain between `then' and `fi' if it # were not for the `:' below. : AC_EXEEXT fi . [$]{glibcpp_basedir}/configure.host case [$]{glibcpp_basedir} in /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;; *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;; esac # This does for the target what configure.host does for the host. In # addition to possibly modifying the same flags, it also sets up symlinks. GLIBCPP_CHECK_TARGET ]) dnl dnl Check to see if g++ can compile this library, and if so, if any version- dnl specific precautions need to be taken. dnl dnl GLIBCPP_CHECK_COMPILER_VERSION AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [ if test ! -f stamp-sanity-compiler; then AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3]) AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE(, [ #if __GNUC__ < 3 not_ok #endif ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above])) AC_LANG_RESTORE AC_MSG_RESULT($gpp_satisfactory) touch stamp-sanity-compiler fi ]) dnl dnl Tests for newer compiler features, or features that are present in newer dnl compiler versions but not older compiler versions still in use, should dnl be placed here. dnl dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the dnl new inlining code or the new system_header pragma will die on -Werror. dnl Leave it out by default and use maint-mode to use it. dnl dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if dnl compiler supports it and the user has not requested debug mode. dnl dnl GLIBCPP_CHECK_COMPILER_FEATURES AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [ # All these tests are for C++; save the language and the compiler flags. # The CXXFLAGS thing is suspicious, but based on similar bits previously # found in GLIBCPP_CONFIGURE. AC_LANG_SAVE AC_LANG_CPLUSPLUS ac_test_CXXFLAGS="${CXXFLAGS+set}" ac_save_CXXFLAGS="$CXXFLAGS" # Check for maintainer-mode bits. if test x"$USE_MAINTAINER_MODE" = xno; then WERROR='' else WERROR='-Werror' fi # Check for -ffunction-sections -fdata-sections AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections]) CXXFLAGS='-Werror -ffunction-sections -fdata-sections' AC_TRY_COMPILE(, [int foo; ], [ac_fdsections=yes], [ac_fdsections=no]) if test "$ac_test_CXXFLAGS" = set; then CXXFLAGS="$ac_save_CXXFLAGS" else # this is the suspicious part CXXFLAGS='' fi if test x"$ac_fdsections" = x"yes" && test x"$enable_debug" = x"no"; then SECTION_FLAGS='-ffunction-sections -fdata-sections' fi AC_MSG_RESULT($ac_fdsections) AC_LANG_RESTORE AC_SUBST(WERROR) AC_SUBST(SECTION_FLAGS) ]) dnl dnl If GNU ld is in use, check to see if tricky linker opts can be used. If dnl the native linker is in use, all variables will be defined to something dnl safe (like an empty string). dnl dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible. dnl Define OPT_LDFLAGS='-Wl,-O1' if possible. dnl dnl GLIBCPP_CHECK_LINKER_FEATURES AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [ # If we're not using GNU ld, then there's no point in even trying these # tests. Check for that first. We should have already tested for gld # by now (in libtool), but require it now just to be safe... SECTION_LDFLAGS='' OPT_LDFLAGS='' AC_REQUIRE([AC_PROG_LD]) # Set --gc-sections. if test "$ac_cv_prog_gnu_ld" = "notbroken"; then # GNU ld it is! Joy and bunny rabbits! # All these tests are for C++; save the language and the compiler flags. # Need to do this so that g++ won't try to link in libstdc++ ac_test_CFLAGS="${CFLAGS+set}" ac_save_CFLAGS="$CFLAGS" CFLAGS='-x c++ -Wl,--gc-sections' # Check for -Wl,--gc-sections # XXX This test is broken at the moment, as symbols required for # linking are now in libsupc++ (not built yet.....). In addition, # this test has cored on solaris in the past. In addition, # --gc-sections doesn't really work at the moment (keeps on discarding # used sections, first .eh_frame and now some of the glibc sections for # iconv). Bzzzzt. Thanks for playing, maybe next time. AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections]) AC_TRY_RUN([ int main(void) { try { throw 1; } catch (...) { }; return 0; } ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes]) if test "$ac_test_CFLAGS" = set; then CFLAGS="$ac_save_CFLAGS" else # this is the suspicious part CFLAGS='' fi if test "$ac_sectionLDflags" = "yes"; then SECTION_LDFLAGS='-Wl,--gc-sections' fi AC_MSG_RESULT($ac_sectionLDflags) fi # Set linker optimization flags. if test x"$ac_cv_prog_gnu_ld" = x"yes" && test x"$enable_debug" = x"no"; then OPT_LDFLAGS='-Wl,-O1' fi AC_SUBST(SECTION_LDFLAGS) AC_SUBST(OPT_LDFLAGS) ]) dnl dnl Check to see if the (math function) argument passed is dnl declared when using the c++ compiler dnl ASSUMES argument is a math function with ONE parameter dnl dnl GLIBCPP_CHECK_MATH_DECL_1 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [ AC_MSG_CHECKING([for $1 declaration]) if test x${glibcpp_cv_func_$1_use+set} != xset; then AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include #ifdef HAVE_IEEEFP_H #include #endif ], [ $1(0);], [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) AC_LANG_RESTORE ]) fi AC_MSG_RESULT($glibcpp_cv_func_$1_use) ]) dnl dnl Check to see if the (math function) argument passed is dnl 1) declared when using the c++ compiler dnl 2) has "C" linkage dnl 3) if not, see if 1) and 2) for argument prepended with '_' dnl dnl Define HAVE_CARGF etc if "cargf" is declared and links dnl dnl argument 1 is name of function to check dnl dnl ASSUMES argument is a math function with ONE parameter dnl dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [ GLIBCPP_CHECK_MATH_DECL_1($1) if test x$glibcpp_cv_func_$1_use = x"yes"; then AC_CHECK_FUNCS($1) else GLIBCPP_CHECK_MATH_DECL_1(_$1) if test x$glibcpp_cv_func__$1_use = x"yes"; then AC_CHECK_FUNCS(_$1) fi fi ]) dnl dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of dnl of functions at once. It's an all-or-nothing check -- either dnl HAVE_XYZ is defined for each of the functions, or for none of them. dnl Doing it this way saves significant configure time. AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [ AC_MSG_CHECKING([for $1 functions]) AC_CACHE_VAL(glibcpp_cv_func_$2_use, [ AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include ], [ `for x in $3; do echo "$x (0);"; done` ], [glibcpp_cv_func_$2_use=yes], [glibcpp_cv_func_$2_use=no]) AC_LANG_RESTORE]) AC_MSG_RESULT($glibcpp_cv_func_$2_use) if test x$glibcpp_cv_func_$2_use = x"yes"; then AC_CHECK_FUNCS($3) fi ]) dnl dnl Check to see if the (math function) argument passed is dnl declared when using the c++ compiler dnl ASSUMES argument is a math function with TWO parameters dnl dnl GLIBCPP_CHECK_MATH_DECL_2 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [ AC_MSG_CHECKING([for $1 declaration]) if test x${glibcpp_cv_func_$1_use+set} != xset; then AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include ], [ $1(0, 0);], [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) AC_LANG_RESTORE ]) fi AC_MSG_RESULT($glibcpp_cv_func_$1_use) ]) dnl dnl Check to see if the (math function) argument passed is dnl 1) declared when using the c++ compiler dnl 2) has "C" linkage dnl dnl Define HAVE_CARGF etc if "cargf" is declared and links dnl dnl argument 1 is name of function to check dnl dnl ASSUMES argument is a math function with TWO parameters dnl dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [ GLIBCPP_CHECK_MATH_DECL_2($1) if test x$glibcpp_cv_func_$1_use = x"yes"; then AC_CHECK_FUNCS($1) else GLIBCPP_CHECK_MATH_DECL_2(_$1) if test x$glibcpp_cv_func__$1_use = x"yes"; then AC_CHECK_FUNCS(_$1) fi fi ]) dnl dnl Check to see if the (math function) argument passed is dnl declared when using the c++ compiler dnl ASSUMES argument is a math function with THREE parameters dnl dnl GLIBCPP_CHECK_MATH_DECL_3 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [ AC_MSG_CHECKING([for $1 declaration]) if test x${glibcpp_cv_func_$1_use+set} != xset; then AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include ], [ $1(0, 0, 0);], [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) AC_LANG_RESTORE ]) fi AC_MSG_RESULT($glibcpp_cv_func_$1_use) ]) dnl dnl Check to see if the (math function) argument passed is dnl 1) declared when using the c++ compiler dnl 2) has "C" linkage dnl dnl Define HAVE_CARGF etc if "cargf" is declared and links dnl dnl argument 1 is name of function to check dnl dnl ASSUMES argument is a math function with THREE parameters dnl dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [ GLIBCPP_CHECK_MATH_DECL_3($1) if test x$glibcpp_cv_func_$1_use = x"yes"; then AC_CHECK_FUNCS($1) else GLIBCPP_CHECK_MATH_DECL_3(_$1) if test x$glibcpp_cv_func__$1_use = x"yes"; then AC_CHECK_FUNCS(_$1) fi fi ]) dnl dnl Check to see if the (stdlib function) argument passed is dnl 1) declared when using the c++ compiler dnl 2) has "C" linkage dnl dnl argument 1 is name of function to check dnl dnl ASSUMES argument is a math function with TWO parameters dnl dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2 AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [ AC_MSG_CHECKING([for $1 declaration]) if test x${glibcpp_cv_func_$1_use+set} != xset; then AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include ], [ $1(0, 0);], [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) AC_LANG_RESTORE ]) fi AC_MSG_RESULT($glibcpp_cv_func_$1_use) if test x$glibcpp_cv_func_$1_use = x"yes"; then AC_CHECK_FUNCS($1) fi ]) dnl dnl Because the builtins are picky picky picky about the arguments they take, dnl do an explict linkage tests here. dnl Check to see if the (math function) argument passed is dnl 1) declared when using the c++ compiler dnl 2) has "C" linkage dnl dnl Define HAVE_CARGF etc if "cargf" is declared and links dnl dnl argument 1 is name of function to check dnl dnl ASSUMES argument is a math function with ONE parameter dnl dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [ AC_MSG_CHECKING([for $1 declaration]) if test x${glibcpp_cv_func_$1_use+set} != xset; then AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include ], [ $1(0);], [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) AC_LANG_RESTORE ]) fi AC_MSG_RESULT($glibcpp_cv_func_$1_use) if test x$glibcpp_cv_func_$1_use = x"yes"; then AC_MSG_CHECKING([for $1 linkage]) if test x${glibcpp_cv_func_$1_link+set} != xset; then AC_CACHE_VAL(glibcpp_cv_func_$1_link, [ AC_TRY_LINK([#include ], [ $1(0);], [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no]) ]) fi AC_MSG_RESULT($glibcpp_cv_func_$1_link) if test x$glibcpp_cv_func_$1_link = x"yes"; then ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` AC_DEFINE_UNQUOTED(${ac_tr_func}) fi fi ]) dnl dnl Check to see what builtin math functions are supported dnl dnl check for __builtin_abs dnl check for __builtin_fabsf dnl check for __builtin_fabs dnl check for __builtin_fabl dnl check for __builtin_labs dnl check for __builtin_sqrtf dnl check for __builtin_sqrtl dnl check for __builtin_fsqrt dnl check for __builtin_sinf dnl check for __builtin_sin dnl check for __builtin_sinl dnl check for __builtin_cosf dnl check for __builtin_cos dnl check for __builtin_cosl dnl dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [ dnl Test for builtin math functions. dnl These are made in gcc/c-common.c GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos) GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl) dnl There is, without a doubt, a more elegant way to have these dnl names exported so that they won't be stripped out of acconfig.h by dnl autoheader. I leave this as an exercise to somebody less frustrated dnl than I.... please email the libstdc++ list if you can figure out a dnl more elegant approach (see autoconf/acgen.m4 and specifically dnl AC_CHECK_FUNC for things to steal.) dummyvar=no if test x$dummyvar = x"yes"; then AC_DEFINE(HAVE___BUILTIN_ABS) AC_DEFINE(HAVE___BUILTIN_LABS) AC_DEFINE(HAVE___BUILTIN_COS) AC_DEFINE(HAVE___BUILTIN_COSF) AC_DEFINE(HAVE___BUILTIN_COSL) AC_DEFINE(HAVE___BUILTIN_FABS) AC_DEFINE(HAVE___BUILTIN_FABSF) AC_DEFINE(HAVE___BUILTIN_FABSL) AC_DEFINE(HAVE___BUILTIN_SIN) AC_DEFINE(HAVE___BUILTIN_SINF) AC_DEFINE(HAVE___BUILTIN_SINL) AC_DEFINE(HAVE___BUILTIN_FSQRT) AC_DEFINE(HAVE___BUILTIN_SQRTF) AC_DEFINE(HAVE___BUILTIN_SQRTL) fi ]) dnl dnl Check to see what the underlying c library dnl These checks need to do two things: dnl 1) make sure the name is declared when using the c++ compiler dnl 2) make sure the name has "C" linkage dnl This might seem like overkill but experience has shown that it's not... dnl dnl Define HAVE_STRTOLD if "strtold" is declared and links dnl Define HAVE_STRTOF if "strtof" is declared and links dnl Define HAVE_DRAND48 if "drand48" is declared and links dnl dnl GLIBCPP_CHECK_STDLIB_SUPPORT AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [ ac_test_CXXFLAGS="${CXXFLAGS+set}" ac_save_CXXFLAGS="$CXXFLAGS" CXXFLAGS='-fno-builtins -D_GNU_SOURCE' GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold) AC_CHECK_FUNCS(drand48) CXXFLAGS="$ac_save_CXXFLAGS" ]) dnl dnl Check to see what the underlying c library or math library is like. dnl These checks need to do two things: dnl 1) make sure the name is declared when using the c++ compiler dnl 2) make sure the name has "C" linkage dnl This might seem like overkill but experience has shown that it's not... dnl dnl Define HAVE_CARGF etc if "cargf" is found. dnl dnl GLIBCPP_CHECK_MATH_SUPPORT AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ ac_test_CXXFLAGS="${CXXFLAGS+set}" ac_save_CXXFLAGS="$CXXFLAGS" CXXFLAGS='-fno-builtins -D_GNU_SOURCE' dnl Check libm AC_CHECK_LIB(m, sin, libm="-lm") ac_save_LIBS="$LIBS" LIBS="$LIBS $libm" dnl Check to see if certain C math functions exist. GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass) dnl Check to see if basic C math functions have float versions. GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig, float_trig, acosf asinf atanf \ cosf sinf tanf \ coshf sinhf tanhf) GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round, float_round, ceilf floorf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef) dnl Check to see if basic C math functions have long double versions. GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig, long_double_trig, acosl asinl atanl \ cosl sinl tanl \ coshl sinhl tanhl) GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round, long_double_round, ceill floorl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl) GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel) dnl Some runtimes have these functions with a preceding underscore. Please dnl keep this sync'd with the one above. And if you add any new symbol, dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h. dnl Check to see if certain C math functions exist. dnl Check to see if basic C math functions have float versions. GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig, _float_trig, _acosf _asinf _atanf \ _cosf _sinf _tanf \ _coshf _sinhf _tanhf) GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round, _float_round, _ceilf _floorf) dnl Check to see if basic C math functions have long double versions. GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig, _long_double_trig, _acosl _asinl _atanl \ _cosl _sinl _tanl \ _coshl _sinhl _tanhl) GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round, _long_double_round, _ceill _floorl) LIBS="$ac_save_LIBS" CXXFLAGS="$ac_save_CXXFLAGS" ]) dnl dnl Check to see if there is native support for complex dnl dnl Don't compile bits in math/* if native support exits. dnl dnl Define USE_COMPLEX_LONG_DOUBLE etc if "atan2l/copysignl" is found. dnl dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [ dnl Check for complex versions of math functions of platform. AC_CHECK_LIB(m, main) AC_REPLACE_MATHFUNCS(nan hypot hypotf atan2f expf copysignf) dnl Compile the long double complex functions only if the function dnl provides the non-complex long double functions that are needed. dnl Currently this includes copysignl and atan2l, which should be dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above. USE_COMPLEX_LONG_DOUBLE=no if test x$ac_cv_func_atan2l = x"yes" && test x$ac_cv_func_copysignl = x"yes"; then USE_COMPLEX_LONG_DOUBLE=yes AC_REPLACE_MATHFUNCS(hypotl signbitl) fi AC_SUBST(USE_COMPLEX_LONG_DOUBLE) ]) dnl Check to see what architecture and operating system we are compiling dnl for. Also, if architecture- or OS-specific flags are required for dnl compilation, pick them up here. dnl dnl GLIBCPP_CHECK_TARGET AC_DEFUN(GLIBCPP_CHECK_TARGET, [ . [$]{glibcpp_basedir}/configure.target AC_MSG_RESULT(CPU config directory is $cpu_include_dir) AC_MSG_RESULT(OS config directory is $os_include_dir) AC_LINK_FILES($os_include_dir/bits/os_defines.h, include/bits/os_defines.h) ]) dnl dnl Check to see if this target can enable the wchar_t parts of libstdc++. dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This dnl must have been previously checked.) dnl dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h dnl dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [ dnl Test wchar.h for mbstate_t, which is needed for char_traits and dnl others even if wchar_t support is not on. AC_MSG_CHECKING([for mbstate_t]) AC_TRY_COMPILE([#include ], [mbstate_t teststate;], have_mbstate_t=yes, have_mbstate_t=no) AC_MSG_RESULT($have_mbstate_t) if test x"$have_mbstate_t" = xyes; then AC_DEFINE(HAVE_MBSTATE_T) fi dnl Sanity check for existence of ISO C99 headers for extended encoding. AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no) AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no) dnl Only continue checking if the ISO C99 headers exist and support is on. if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes && test x"$enable_c_mbchar" != xno; then dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before dnl numeric_limits can instantiate type_traits AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX]) AC_TRY_COMPILE([#include ], [int i = WCHAR_MIN; int j = WCHAR_MAX;], has_wchar_minmax=yes, has_wchar_minmax=no) AC_MSG_RESULT($has_wchar_minmax) dnl Test wchar.h for WEOF, which is what we use to determine whether dnl to specialize for char_traits or not. AC_MSG_CHECKING([for WEOF]) AC_TRY_COMPILE([ #include #include ], [wint_t i = WEOF;], has_weof=yes, has_weof=no) AC_MSG_RESULT($has_weof) dnl Tests for wide character functions used in char_traits. ac_wfuncs=yes AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \ ac_wfuncs=no) dnl Checks for names injected into std:: by the c_std headers. AC_CHECK_FUNCS(btowc wctob fgetwc fgetwc fgetws fputwc fputws fwide \ fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \ vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \ mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \ wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \ wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \ ac_wfuncs=no) AC_MSG_CHECKING([for ISO C99 wchar_t support]) if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes && test x"$ac_wfuncs" = xyes; then ac_isoC99_wchar_t=yes else ac_isoC99_wchar_t=no fi AC_MSG_RESULT($ac_isoC99_wchar_t) dnl Use iconv for wchar_t to char conversions. As such, check for dnl X/Open Portability Guide, version 2 features (XPG2). AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no) AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no) dnl Check for existence of libiconv.a providing XPG2 wchar_t support. AC_CHECK_LIB(iconv, iconv, libiconv="-liconv") ac_save_LIBS="$LIBS" LIBS="$LIBS $libiconv" AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \ ac_XPG2funcs=yes, ac_XPG2funcs=no) LIBS="$ac_save_LIBS" AC_MSG_CHECKING([for XPG2 wchar_t support]) if test x"$ac_has_iconv_h" = xyes && test x"$ac_has_langinfo_h" = xyes && test x"$ac_XPG2funcs" = xyes; then ac_XPG2_wchar_t=yes else ac_XPG2_wchar_t=no fi AC_MSG_RESULT($ac_XPG2_wchar_t) dnl At the moment, only enable wchar_t specializations if all the dnl above support is present. AC_MSG_CHECKING([for enabled wchar_t specializations]) if test x"$ac_isoC99_wchar_t" = xyes && test x"$ac_XPG2_wchar_t" = xyes; then AC_DEFINE(_GLIBCPP_USE_WCHAR_T) AC_MSG_RESULT("yes") else AC_MSG_RESULT("no") fi else dnl Wide characters disabled by the user. AC_MSG_WARN([wchar_t support disabled.]) fi ]) dnl dnl Check for special debugging mode; not for production use. dnl dnl GLIBCPP_ENABLE_DEBUG dnl --enable-debug sets '-ggdb3 -O0'. dnl --disable-debug sets '-g' and whatever optimization options the dnl compiler can handle. dnl + --enable-maintainer-mode automatically defaults this to on. dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...? dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)] dnl Where DEFAULT is either `yes' or `no'. If ommitted, it dnl defaults to `no'. AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl AC_ARG_ENABLE(debug, changequote(<<, >>)dnl << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT], changequote([, ])dnl [case "${enableval}" in yes) enable_debug=yes ;; no) enable_debug=no ;; *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;; esac], enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl dnl Option parsed, now set things appropriately case "${enable_debug}" in yes) DEBUG_FLAGS='-O0 -ggdb3' ;; no) DEBUG_FLAGS='-g' ;; esac AC_SUBST(DEBUG_FLAGS) ]) dnl dnl Check for "unusual" flags to pass to the compiler while building. dnl dnl GLIBCPP_ENABLE_CXX_FLAGS dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc. dnl Somehow this same set of flags must be passed when [re]building dnl libgcc. dnl --disable-cxx-flags passes nothing. dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags) dnl If "default flags" is an empty string (or "none"), the effect is dnl the same as --disable or --enable=no. AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl AC_ARG_ENABLE(cxx-flags, changequote(<<, >>)dnl << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library; [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], changequote([, ])dnl [case "x$enableval" in xyes) AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;; xno|x) enable_cxx_flags='' ;; *) enable_cxx_flags="$enableval" ;; esac], enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT') dnl Thinko on my part during design. This kludge is the workaround. if test "$enable_cxx_flags" = "none"; then enable_cxx_flags=''; fi dnl Run through flags (either default or command-line) and set anything dnl extra (e.g., #defines) that must accompany particular g++ options. if test -n "$enable_cxx_flags"; then for f in $enable_cxx_flags; do case "$f" in -fhonor-std) ;; -*) ;; *) # and we're trying to pass /what/ exactly? AC_MSG_ERROR([compiler flags start with a -]) ;; esac done fi EXTRA_CXX_FLAGS="$enable_cxx_flags" AC_SUBST(EXTRA_CXX_FLAGS) ]) dnl dnl Check for which locale library to use: gnu or generic. dnl dnl GLIBCPP_ENABLE_CLOCALE dnl --enable-clocale=gnu sets config/c_locale_gnu.cc and friends dnl --enable-clocale=generic sets config/c_locale_generic.cc and friends dnl dnl default is generic dnl AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [ AC_MSG_CHECKING([for clocale to use]) AC_ARG_ENABLE(clocale, [ --enable-clocale enable model for target locale package. --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic] ], if test x$enable_clocale = xno; then enable_clocale=generic fi, enable_clocale=generic) enable_clocale_flag=$enable_clocale dnl Check if a valid locale package case x${enable_clocale_flag} in xgnu) CLOCALE_H=config/c_locale_gnu.h CLOCALE_CC=config/c_locale_gnu.cc AC_MSG_RESULT(gnu) ;; xgeneric) CLOCALE_H=config/c_locale_generic.h CLOCALE_CC=config/c_locale_generic.cc AC_MSG_RESULT(generic) ;; *) echo "$enable_clocale is an unknown locale package" 1>&2 exit 1 ;; esac AC_LINK_FILES($CLOCALE_H, include/bits/c++locale.h) AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc) ]) dnl dnl Check for which I/O library to use: libio, or something specific. dnl dnl GLIBCPP_ENABLE_CSTDIO dnl --enable-cstdio=libio sets config/c_io_libio.h and friends dnl dnl default is stdio dnl AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [ AC_MSG_CHECKING([for cstdio to use]) AC_ARG_ENABLE(cstdio, [ --enable-cstdio enable stdio for target io package. --enable-cstdio=LIB use LIB target-speific io package. [default=stdio] ], if test x$enable_cstdio = xno; then enable_cstdio=stdio fi, enable_cstdio=stdio) enable_cstdio_flag=$enable_cstdio dnl Check if a valid I/O package case x${enable_cstdio_flag} in xlibio) CSTDIO_H=config/c_io_libio.h BASIC_FILE_H=config/basic_file_libio.h BASIC_FILE_CC=config/basic_file_libio.cc AC_MSG_RESULT(libio) # see if we are on a system with libio native (ie, linux) AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no) # Need to check and see what version of glibc is being used. If # it's not glibc-2.2 or higher, then we'll need to go ahead and # compile most of libio for linux systems. if test x$has_libio = x"yes"; then case "$target" in *-*-linux*) AC_MSG_CHECKING([for glibc version >= 2.2]) AC_EGREP_CPP([ok], [ #include #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) ok #endif ], glibc_satisfactory=yes, glibc_satisfactory=no) AC_MSG_RESULT($glibc_satisfactory) ;; esac # XXX at the moment, admit defeat and force the recompilation # XXX of glibc even on glibc-2.2 systems, because libio is not synched. glibc_satisfactory=no if test x$glibc_satisfactory = x"yes"; then need_libio=no need_wlibio=no else need_libio=yes # bkoz XXX need to add checks to enable this # pme XXX here's a first pass at such a check if test x$enable_c_mbchar != xno; then need_wlibio=yes else need_wlibio=no fi fi else # Using libio, but doesn't exist on the target system. . . need_libio=yes # bkoz XXX need to add checks to enable this # pme XXX here's a first pass at such a check if test x$enable_c_mbchar != xno; then need_wlibio=yes else need_wlibio=no fi fi ;; xstdio | x | xno | xnone | xyes) # default CSTDIO_H=config/c_io_stdio.h BASIC_FILE_H=config/basic_file_stdio.h BASIC_FILE_CC=config/basic_file_stdio.cc AC_MSG_RESULT(stdio) # We're not using stdio. need_libio=no need_wlibio=no ;; *) echo "$enable_cstdio is an unknown io package" 1>&2 exit 1 ;; esac AC_LINK_FILES($CSTDIO_H, include/bits/c++io.h) AC_LINK_FILES($BASIC_FILE_H, include/bits/basic_file_model.h) AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc) # 2000-08-04 bkoz hack CCODECVT_C=config/c_io_libio_codecvt.c AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c) # 2000-08-04 bkoz hack AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO, test "$need_libio" = yes || test "$need_wlibio" = yes) AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes) AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes) if test "$need_libio" = yes || test "$need_wlibio" = yes; then libio_la=../libio/libio.la else libio_la= fi AC_SUBST(libio_la) ]) dnl dnl Setup to use the gcc gthr.h thread-specific memory and mutex model. dnl We must stage the required headers so that they will be installed dnl with the library (unlike libgcc, the STL implementation is provided dnl solely within headers). Since we must not inject random user-space dnl macro names into user-provided C++ code, we first stage into -in dnl and process to with an output command. The reason for a two- dnl stage process here is to correctly handle $srcdir!=$objdir without dnl having to write complex code (the sed commands to clean the macro dnl namespace are complex and fragile enough as it is). We must also dnl add a relative path so that -I- is supported properly. dnl AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ AC_MSG_CHECKING([for thread model used by GCC]) target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'` AC_MSG_RESULT([$target_thread_file]) AC_LINK_FILES($toprel/gcc/gthr.h, include/bits/gthr.h-in) AC_LINK_FILES($toprel/gcc/gthr-single.h, include/bits/gthr-single.h-in) AC_LINK_FILES($toprel/gcc/gthr-$target_thread_file.h, include/bits/gthr-default.h-in) if test $target_thread_file != single; then AC_DEFINE(HAVE_GTHR_DEFAULT) AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__) fi AC_OUTPUT_COMMANDS([d=include/bits; a='[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]' rm -f $d/gthr.h $d/gthr-single.h $d/gthr-default.h sed '/^#/s/\('$a$a'*\)/_GLIBCPP_\1/g' <$d/gthr.h-in \ | sed 's,"gthr-,"bits/gthr-,' >$d/gthr.h sed 's/\(UNUSED\)/_GLIBCPP_\1/g' <$d/gthr-single.h-in \ | sed 's/\(GCC'$a'*_H\)/_GLIBCPP_\1/g' >$d/gthr-single.h sed 's/\(UNUSED\)/_GLIBCPP_\1/g' <$d/gthr-default.h-in \ | sed 's/\(GCC'$a'*_H\)/_GLIBCPP_\1/g' \ | sed 's/\('$a'*WEAK\)/_GLIBCPP_\1/g' >$d/gthr-default.h]) ]) dnl dnl Check for exception handling support. If an explicit enable/disable dnl sjlj exceptions is given, we don't have to detect. Otherwise the dnl target may or may not support call frame exceptions. dnl dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS dnl --enable-sjlj-exceptions forces the use of builtin setjmp. dnl --disable-sjlj-exceptions forces the use of call frame unwinding. dnl dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it. dnl AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [ AC_MSG_CHECKING([for exception model to use]) AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_ARG_ENABLE(sjlj-exceptions, [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions], [:], [dnl Botheration. Now we've got to detect the exception model. dnl Link tests against libgcc.a are problematic since -- at least dnl as of this writing -- we've not been given proper -L bits for dnl single-tree newlib and libgloss. dnl dnl This is what AC_TRY_COMPILE would do if it didn't delete the dnl conftest files before we got a change to grep them first. cat > conftest.$ac_ext << EOF [#]line __oline__ "configure" struct S { ~S(); }; void bar(); void foo() { S s; bar(); } EOF old_CXXFLAGS="$CXXFLAGS" CXXFLAGS=-S if AC_TRY_EVAL(ac_compile); then if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then enable_sjlj_exceptions=yes elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then enable_sjlj_exceptions=no fi fi CXXFLAGS="$old_CXXFLAGS" rm -f conftest*]) if test x$enable_sjlj_exceptions = xyes; then AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1, [Define if the compiler is configured for setjmp/longjmp exceptions.]) ac_exception_model_name=sjlj elif test x$enable_sjlj_exceptions = xno; then ac_exception_model_name="call frame" else AC_MSG_ERROR([unable to detect exception model]) fi AC_LANG_RESTORE AC_MSG_RESULT($ac_exception_model_name) ]) dnl dnl Check for ISO/IEC 9899:1999 "C99" support. dnl dnl GLIBCPP_ENABLE_C99 dnl --enable-c99 defines _GLIBCPP_USE_C99 dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined dnl + Usage: GLIBCPP_ENABLE_C99[(DEFAULT)] dnl Where DEFAULT is either `yes' or `no'. If omitted, it dnl defaults to `no'. dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'. dnl dnl GLIBCPP_ENABLE_C99 AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl AC_ARG_ENABLE(c99, changequote(<<, >>)dnl <<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT], changequote([, ])dnl [case "$enableval" in yes) enable_c99=yes ;; no) enable_c99=no ;; *) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;; esac], enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl AC_LANG_SAVE AC_LANG_CPLUSPLUS # Check for the existence of functions used if C99 is enabled. ac_c99_math=yes; AC_MSG_CHECKING([for ISO C99 support in ]) AC_TRY_COMPILE([#include ],[fpclassify(0.0);],, [ac_c99_math=no]) AC_TRY_COMPILE([#include ],[isfinite(0.0);],, [ac_c99_math=no]) AC_TRY_COMPILE([#include ],[isinf(0.0);],, [ac_c99_math=no]) AC_TRY_COMPILE([#include ],[isnan(0.0);],, [ac_c99_math=no]) AC_TRY_COMPILE([#include ],[isnormal(0.0);],, [ac_c99_math=no]) AC_TRY_COMPILE([#include ],[signbit(0.0);],, [ac_c99_math=no]) AC_TRY_COMPILE([#include ],[isgreater(0.0,0.0);],, [ac_c99_math=no]) AC_TRY_COMPILE([#include ], [isgreaterequal(0.0,0.0);],, [ac_c99_math=no]) AC_TRY_COMPILE([#include ],[isless(0.0,0.0);],, [ac_c99_math=no]) AC_TRY_COMPILE([#include ],[islessequal(0.0,0.0);],,[ac_c99_math=no]) AC_TRY_COMPILE([#include ], [islessgreater(0.0,0.0);],, [ac_c99_math=no]) AC_TRY_COMPILE([#include ], [isunordered(0.0,0.0);],, [ac_c99_math=no]) AC_MSG_RESULT($ac_c99_math) # Check for the existence in of vscanf, et. al. ac_c99_stdio=yes; AC_MSG_CHECKING([for ISO C99 support in ]) AC_TRY_COMPILE([#include ], [snprintf("12", 0, "%i");],, [ac_c99_stdio=no]) AC_TRY_COMPILE([#include #include void foo(char* fmt, ...) {va_list args; va_start(args, fmt); vfscanf(stderr, "%i", args);}], [],, [ac_c99_stdio=no]) AC_TRY_COMPILE([#include #include void foo(char* fmt, ...) {va_list args; va_start(args, fmt); vscanf("%i", args);}], [],, [ac_c99_stdio=no]) AC_TRY_COMPILE([#include #include void foo(char* fmt, ...) {va_list args; va_start(args, fmt); vsnprintf(fmt, 0, "%i", args);}], [],, [ac_c99_stdio=no]) AC_TRY_COMPILE([#include #include void foo(char* fmt, ...) {va_list args; va_start(args, fmt); vsscanf(fmt, "%i", args);}], [],, [ac_c99_stdio=no]) AC_MSG_RESULT($ac_c99_stdio) # Check for the existence in of lldiv_t, et. al. ac_c99_stdlib=yes; AC_MSG_CHECKING([for lldiv_t declaration]) AC_CACHE_VAL(ac_c99_lldiv_t, [ AC_TRY_COMPILE([#include ], [ lldiv_t mydivt;], [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no]) ]) AC_MSG_RESULT($ac_c99_lldiv_t) AC_MSG_CHECKING([for ISO C99 support in ]) AC_TRY_COMPILE([#include ], [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no]) AC_TRY_COMPILE([#include ], [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no]) AC_TRY_COMPILE([#include ], [char* tmp; strtoll("gnu", &tmp, 10);],, [ac_c99_stdlib=no]) AC_TRY_COMPILE([#include ], [char* tmp; strtoull("gnu", &tmp, 10);],, [ac_c99_stdlib=no]) AC_TRY_COMPILE([#include ], [llabs(10);],, [ac_c99_stdlib=no]) AC_TRY_COMPILE([#include ], [lldiv(10,1);],, [ac_c99_stdlib=no]) AC_TRY_COMPILE([#include ], [atoll("10");],, [ac_c99_stdlib=no]) AC_TRY_COMPILE([#include ], [_Exit(0);],, [ac_c99_stdlib=no]) if test x"$ac_c99_lldiv_t" = x"no"; then ac_c99_stdlib=no; fi; AC_MSG_RESULT($ac_c99_stdlib) # Check for the existence of functions used if C99 is enabled. # XXX the wchar.h checks should be rolled into the general C99 bits. ac_c99_wchar=yes; AC_MSG_CHECKING([for additional ISO C99 support in ]) AC_TRY_COMPILE([#include ], [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no]) AC_TRY_COMPILE([#include ], [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no]) AC_TRY_COMPILE([#include ], [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no]) AC_MSG_RESULT($ac_c99_wchar) AC_MSG_CHECKING([for enabled ISO C99 support]) if test x"$ac_c99_math" = x"no" || test x"$ac_c99_stdio" = x"no" || test x"$ac_c99_stdlib" = x"no" || test x"$ac_c99_wchar" = x"no"; then enable_c99=no; fi; AC_MSG_RESULT($enable_c99) # Option parsed, now set things appropriately if test x"$enable_c99" = x"yes"; then AC_DEFINE(_GLIBCPP_USE_C99) fi AC_LANG_RESTORE ]) dnl dnl Check for template specializations for the 'long long' type extension. dnl NB: Must check for C99 support before calling _GLIBCPP_ENABLE_LONG_LONG dnl dnl GLIBCPP_ENABLE_LONG_LONG dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)] dnl Where DEFAULT is either `yes' or `no'. If omitted, it dnl defaults to `no'. dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'. dnl dnl GLIBCPP_ENABLE_LONG_LONG AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl AC_ARG_ENABLE(long-long, changequote(<<, >>)dnl <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], changequote([, ])dnl [case "$enableval" in yes) enable_long_long=yes ;; no) enable_long_long=no ;; *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;; esac], enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl # iostreams require strtoll, strtoull to compile. If the # GLIBCPP_ENABLE_C99 tests found these, and if C99 support is enabled, # go ahead and allow long long to be used. if test x"$enable_c99" = x"no"; then enable_long_long=no; fi # Option parsed, now set things appropriately AC_MSG_CHECKING([for enabled long long support]) if test x"$enable_long_long" = xyes; then AC_DEFINE(_GLIBCPP_USE_LONG_LONG) fi AC_MSG_RESULT($enable_long_long) ]) dnl dnl Check for what kind of C headers to use. dnl dnl GLIBCPP_ENABLE_CHEADERS dnl --enable-cheaders= [does stuff]. dnl --disable-cheaders [does not do anything, really]. dnl + This will eventually need to be 'c_shadow' by default. dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)] dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'. dnl If ommitted, it defaults to `c_std'. AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl AC_MSG_CHECKING([for c header strategy to use]) AC_ARG_ENABLE(cheaders, changequote(<<, >>)dnl << --enable-cheaders construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT], changequote([, ]) [case "$enableval" in c) enable_cheaders=c ;; c_std) enable_cheaders=c_std ;; c_shadow) enable_cheaders=c_shadow ;; *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers]) ;; esac], enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT) AC_MSG_RESULT($enable_cheaders) dnl Option parsed, now set things appropriately case "$enable_cheaders" in c_shadow) CSHADOW_FLAGS="-fno-builtin" C_INCLUDE_DIR='${top_srcdir}/include/c_shadow' AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS) ;; c_std) CSHADOW_FLAGS="" C_INCLUDE_DIR='${top_srcdir}/include/c_std' ;; c) CSHADOW_FLAGS="" C_INCLUDE_DIR='${top_srcdir}/include/c' ;; esac AC_SUBST(CSHADOW_FLAGS) AC_SUBST(C_INCLUDE_DIR) AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow) ]) dnl dnl Check for wide character support. Has the same effect as the option dnl in gcc's configure, but in a form that autoconf can mess with. dnl dnl GLIBCPP_ENABLE_C_MBCHAR dnl --enable-c-mbchar requests all the wchar_t stuff. dnl --disable-c-mbchar doesn't. dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)] dnl Where DEFAULT is either `yes' or `no'. If ommitted, it dnl defaults to `no'. AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl AC_ARG_ENABLE(c-mbchar, changequote(<<, >>)dnl << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], changequote([, ])dnl [case "$enableval" in yes) enable_c_mbchar=yes ;; no) enable_c_mbchar=no ;; *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;; esac], enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no. ]) dnl dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's. dnl dnl GLIBCPP_INCLUDE_DIR dnl C_INCLUDE_DIR dnl TOPLEVEL_INCLUDES dnl LIBMATH_INCLUDES dnl LIBSUPCXX_INCLUDES dnl LIBIO_INCLUDES dnl CSHADOW_INCLUDES dnl dnl GLIBCPP_EXPORT_INCLUDE AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [ # Root level of the include sources. GLIBCPP_INCLUDE_DIR='$(top_srcdir)/include' # Can either use include/c or include/c_std to grab "C" headers. This # variable is set to the include directory currently in use. # set with C_INCLUDE_DIR in GLIBCPP_ENABLE_CHEADERS # Passed down for canadian crosses. if test x"$CANADIAN" = xyes; then TOPLEVEL_INCLUDES='-I$(includedir)' fi LIBMATH_INCLUDES='-I$(top_srcdir)/libmath' LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++' #if GLIBCPP_NEED_LIBIO LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio' #else #LIBIO_INCLUDES='-I$(top_srcdir)/libio' #endif #if GLIBCPP_USE_CSHADOW # CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR) \ # -I$(top_blddir)/cshadow' #else CSTD_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR)' #endif # Now, export this to all the little Makefiles.... AC_SUBST(GLIBCPP_INCLUDE_DIR) AC_SUBST(TOPLEVEL_INCLUDES) AC_SUBST(LIBMATH_INCLUDES) AC_SUBST(LIBSUPCXX_INCLUDES) AC_SUBST(LIBIO_INCLUDES) AC_SUBST(CSTD_INCLUDES) ]) dnl dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's. dnl AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [ # Optimization flags that are probably a good idea for thrill-seekers. Just # uncomment the lines below and make, everything else is ready to go... # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc OPTIMIZE_CXXFLAGS= AC_SUBST(OPTIMIZE_CXXFLAGS) WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline' AC_SUBST(WARN_FLAGS) ]) dnl dnl GLIBCPP_EXPORT_INSTALL_INFO dnl calculates gxx_install_dir dnl exports glibcpp_toolexecdir dnl exports glibcpp_toolexeclibdir dnl exports glibcpp_builddir dnl exports glibcpp_srcdir dnl exports glibcpp_prefixdir dnl dnl Assumes cross_compiling bits already done, and with_cross_host in dnl particular dnl dnl GLIBCPP_EXPORT_INSTALL_INFO AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [ glibcpp_toolexecdir=no glibcpp_toolexeclibdir=no # Export build and source directories. # These need to be absolute paths, yet at the same time need to # canonicalize only relative paths, because then amd will not unmount # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd. glibcpp_builddir=`pwd` case $srcdir in [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;; *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;; esac glibcpp_prefixdir=${prefix} AC_MSG_CHECKING([for interface version number]) libstdcxx_interface=$INTERFACE AC_MSG_RESULT($libstdcxx_interface) # Process the option --with-gxx-include-dir= AC_MSG_CHECKING([for --with-gxx-include-dir]) AC_ARG_WITH(gxx-include-dir, [ --with-gxx-include-dir the installation directory for include files], [case "${withval}" in yes) AC_MSG_ERROR(Missing directory for --with-gxx-include-dir) gxx_include_dir=no ;; no) gxx_include_dir=no ;; *) gxx_include_dir=${withval} ;; esac], [gxx_include_dir=no]) AC_MSG_RESULT($gxx_include_dir) # Process the option "--enable-version-specific-runtime-libs" AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) AC_ARG_ENABLE(version-specific-runtime-libs, [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], [ version_specific_libs=yes # Need the gcc compiler version to know where to install libraries # and header files if --enable-version-specific-runtime-libs option # is selected. changequote(,)dnl gcc_version_trigger=${srcdir}/../gcc/version.c gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'` gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'` gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++ glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)' changequote([,])dnl ],version_specific_libs=no) AC_MSG_RESULT($version_specific_libs) # Default case for install directory for include files. if test x"$version_specific_libs" = x"no" \ && test x"$gxx_include_dir" = x"no"; then gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface} fi # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir # Install a library built with a cross compiler in tooldir, not libdir. if test x"$glibcpp_toolexecdir" = x"no"; then if test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)' glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)' else glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)' fi fi AC_MSG_CHECKING([for install location]) AC_MSG_RESULT($gxx_include_dir) AC_SUBST(glibcpp_builddir) AC_SUBST(glibcpp_srcdir) AC_SUBST(glibcpp_prefixdir) AC_SUBST(gxx_include_dir) AC_SUBST(glibcpp_toolexecdir) AC_SUBST(glibcpp_toolexeclibdir) ]) # Check whether LC_MESSAGES is available in . # Ulrich Drepper , 1995. # # This file file be copied and used freely without restrictions. It can # be used in projects which are not available under the GNU Public License # but which still want to provide support for the GNU gettext functionality. # Please note that the actual code is *not* freely available. # serial 1 AC_DEFUN(AC_LC_MESSAGES, [ AC_CHECK_HEADER(locale.h, [ AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES, [AC_TRY_LINK([#include ], [return LC_MESSAGES], ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)]) if test $ac_cv_val_LC_MESSAGES = yes; then AC_DEFINE(HAVE_LC_MESSAGES) fi ]) ]) # Check for functions in math library. # Ulrich Drepper , 1998. # # This file can be copied and used freely without restrictions. It can # be used in projects which are not available under the GNU Public License # but which still want to provide support for the GNU gettext functionality. # Please note that the actual code is *not* freely available. # serial 1 dnl AC_REPLACE_MATHFUNCS(FUNCTION...) AC_DEFUN(AC_REPLACE_MATHFUNCS, [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"]) AC_SUBST(LIBMATHOBJS)dnl ]) # Check for string functions. # Ulrich Drepper , 1998. # # This file can be copied and used freely without restrictions. It can # be used in projects which are not available under the GNU Public License # but which still want to provide support for the GNU gettext functionality. # Please note that the actual code is *not* freely available. # serial 1 dnl AC_REPLACE_STRINGFUNCS(FUNCTION...) AC_DEFUN(AC_REPLACE_STRINGFUNCS, [AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"]) AC_SUBST(LIBSTRINGOBJS)dnl ]) dnl This macro searches for a GNU version of make. If a match is found, the dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is dnl set to "#". This is useful for including a special features in a Makefile, dnl which cannot be handled by other versions of make. The variable dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists, dnl the empty string otherwise. dnl dnl Here is an example of its use: dnl dnl Makefile.in might contain: dnl dnl # A failsafe way of putting a dependency rule into a makefile dnl $(DEPEND): dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND) dnl dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND))) dnl @ifGNUmake@ include $(DEPEND) dnl @ifGNUmake@ endif dnl dnl Then configure.in would normally contain: dnl dnl CHECK_GNU_MAKE() dnl AC_OUTPUT(Makefile) dnl dnl Then perhaps to cause gnu make to override any other make, we could do dnl something like this (note that GNU make always looks for GNUmakefile first): dnl dnl if ! test x$_cv_gnu_make_command = x ; then dnl mv Makefile GNUmakefile dnl echo .DEFAULT: > Makefile ; dnl echo \ $_cv_gnu_make_command \$@ >> Makefile; dnl fi dnl dnl Then, if any (well almost any) other make is called, and GNU make also dnl exists, then the other make wraps the GNU make. dnl dnl @author John Darrington dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme dnl dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the dnl #### conditional's subshell (" --version" is not a command), using a dnl #### different option to grep(1). dnl #### -pme dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not dnl #### ${MAKE:-make}). dnl #### -msokolov AC_DEFUN( GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command, _cv_gnu_make_command='' ; dnl Search all the common names for GNU make for a in "${MAKE-make}" make gmake gnumake ; do if ( $a --version 2> /dev/null | grep -c GNU > /dev/null ) then _cv_gnu_make_command=$a ; break; fi done ; ) ; dnl If there was a GNU version, then set @ifGNUmake@ to the empty dnl string, '#' otherwise if test "x$_cv_gnu_make_command" != "x" ; then ifGNUmake='' ; else ifGNUmake='#' ; fi AC_SUBST(ifGNUmake) ]) sinclude(../libtool.m4) dnl The lines below arrange for aclocal not to bring an installed dnl libtool.m4 into aclocal.m4, while still arranging for automake to dnl add a definition of LIBTOOL to Makefile.in. ifelse(,,,[AC_SUBST(LIBTOOL) AC_DEFUN([AM_PROG_LIBTOOL]) AC_DEFUN([AC_LIBTOOL_DLOPEN]) AC_DEFUN([AC_PROG_LD]) ]) # Do all the work for Automake. This macro actually does too much -- # some checks are only needed if your package does certain things. # But this isn't really a big deal. # serial 1 dnl Usage: dnl AM_INIT_AUTOMAKE(package,version, [no-define]) AC_DEFUN(AM_INIT_AUTOMAKE, [AC_REQUIRE([AC_PROG_INSTALL]) PACKAGE=[$1] AC_SUBST(PACKAGE) VERSION=[$2] AC_SUBST(VERSION) dnl test to see if srcdir already configured if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then AC_MSG_ERROR([source directory already configured; run "make distclean" there first]) fi ifelse([$3],, AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package]) AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])) AC_REQUIRE([AM_SANITY_CHECK]) AC_REQUIRE([AC_ARG_PROGRAM]) dnl FIXME This is truly gross. missing_dir=`cd $ac_aux_dir && pwd` AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir) AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir) AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir) AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir) AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir) AC_REQUIRE([AC_PROG_MAKE_SET])]) # # Check to make sure that the build environment is sane. # AC_DEFUN(AM_SANITY_CHECK, [AC_MSG_CHECKING([whether build environment is sane]) # Just in case sleep 1 echo timestamp > conftestfile # Do `set' in a subshell so we don't clobber the current shell's # arguments. Must try -L first in case configure is actually a # symlink; some systems play weird games with the mod time of symlinks # (eg FreeBSD returns the mod time of the symlink's containing # directory). if ( set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null` if test "[$]*" = "X"; then # -L didn't work. set X `ls -t $srcdir/configure conftestfile` fi if test "[$]*" != "X $srcdir/configure conftestfile" \ && test "[$]*" != "X conftestfile $srcdir/configure"; then # If neither matched, then we have a broken ls. This can happen # if, for instance, CONFIG_SHELL is bash and it inherits a # broken ls alias from the environment. This has actually # happened. Such a system could not be considered "sane". AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken alias in your environment]) fi test "[$]2" = conftestfile ) then # Ok. : else AC_MSG_ERROR([newly created file is older than distributed files! Check your system clock]) fi rm -f conftest* AC_MSG_RESULT(yes)]) dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY) dnl The program must properly implement --version. AC_DEFUN(AM_MISSING_PROG, [AC_MSG_CHECKING(for working $2) # Run test in a subshell; some versions of sh will print an error if # an executable is not found, even if stderr is redirected. # Redirect stdin to placate older versions of autoconf. Sigh. if ($2 --version) < /dev/null > /dev/null 2>&1; then $1=$2 AC_MSG_RESULT(found) else $1="$3/missing $2" AC_MSG_RESULT(missing) fi AC_SUBST($1)]) # Add --enable-maintainer-mode option to configure. # From Jim Meyering # serial 1 AC_DEFUN(AM_MAINTAINER_MODE, [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) dnl maintainer-mode is disabled by default AC_ARG_ENABLE(maintainer-mode, [ --enable-maintainer-mode enable make rules and dependencies not useful (and sometimes confusing) to the casual installer], USE_MAINTAINER_MODE=$enableval, USE_MAINTAINER_MODE=no) AC_MSG_RESULT($USE_MAINTAINER_MODE) AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes) MAINT=$MAINTAINER_MODE_TRUE AC_SUBST(MAINT)dnl ] ) # Define a conditional. AC_DEFUN(AM_CONDITIONAL, [AC_SUBST($1_TRUE) AC_SUBST($1_FALSE) if $2; then $1_TRUE= $1_FALSE='#' else $1_TRUE='#' $1_FALSE= fi]) # Like AC_CONFIG_HEADER, but automatically create stamp file. AC_DEFUN(AM_CONFIG_HEADER, [AC_PREREQ([2.12]) AC_CONFIG_HEADER([$1]) dnl When config.status generates a header, we must update the stamp-h file. dnl This file resides in the same directory as the config header dnl that is generated. We must strip everything past the first ":", dnl and everything past the last "/". AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>, <>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>, <>; do case " <<$>>CONFIG_HEADERS " in *" <<$>>am_file "*<<)>> echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx ;; esac am_indx=`expr "<<$>>am_indx" + 1` done<<>>dnl>>) changequote([,]))])