| # Process this file with autoconf to produce a configure script, like so: |
| # aclocal && autoconf && autoheader && automake |
| |
| AC_PREREQ(2.13) |
| AC_INIT(src/ios.cc) |
| |
| # This works around the fact that libtool configuration may change LD |
| # for this particular configuration, but some shells, instead of |
| # keeping the changes in LD private, export them just because LD is |
| # exported. |
| ORIGINAL_LD_FOR_MULTILIBS=$LD |
| |
| PACKAGE=libstdc++ |
| AC_SUBST(PACKAGE) |
| # For libtool versioning info, format is CURRENT:REVISION:AGE |
| libtool_VERSION=5:2:0 |
| AC_SUBST(libtool_VERSION) |
| |
| GLIBCPP_TOPREL_CONFIGURE |
| |
| # Gets build, host, target, *_vendor, *_cpu, *_os, etc. |
| # AC 2.5x sets target_alias iff the user specified --target, but we use it |
| # everywhere, so we set it here just to be sure. In AC 2.13 |
| # AC_CANONICAL_TARGET was known as AC_CANONICAL_SYSTEM. |
| AC_CANONICAL_SYSTEM |
| target_alias=${target_alias-$target} |
| AC_SUBST(target_alias) |
| |
| # Runs configure.host and configure.target, as well as finds CC, CXX |
| # and assorted other critical bits. Have to run this before the |
| # GLIBCPP_ENABLE_* macros below. |
| GLIBCPP_CONFIGURE(.) |
| |
| AM_INIT_AUTOMAKE($PACKAGE, $gcc_version) |
| AM_CONFIG_HEADER(config.h) |
| |
| AC_LIBTOOL_DLOPEN |
| AM_PROG_LIBTOOL |
| AC_SUBST(enable_shared) |
| AC_SUBST(enable_static) |
| |
| # Check for c++ or library specific bits that don't require linking. |
| #GLIBCPP_CHECK_COMPILER_VERSION |
| GLIBCPP_CHECK_GNU_MAKE |
| |
| # Enable all the variable C++ stuff. C_MBCHAR must come early. |
| GLIBCPP_ENABLE_DEBUG($USE_MAINTAINER_MODE) |
| GLIBCPP_ENABLE_CSTDIO |
| GLIBCPP_ENABLE_CLOCALE |
| GLIBCPP_ENABLE_C_MBCHAR([yes]) |
| GLIBCPP_ENABLE_C99([yes]) |
| GLIBCPP_ENABLE_LONG_LONG([yes]) |
| GLIBCPP_ENABLE_CHEADERS([$c_model]) |
| GLIBCPP_ENABLE_THREADS |
| GLIBCPP_ENABLE_CXX_FLAGS([none]) |
| GLIBCPP_ENABLE_SJLJ_EXCEPTIONS |
| GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS |
| GLIBCPP_ENABLE_CONCEPT_CHECKS |
| |
| # Check for headers necessary for libsupc++ using dyn-string.c/cxa_demangle.c |
| AC_CHECK_HEADERS(string.h stdlib.h) |
| |
| if test -n "$with_cross_host" || test x"$build" != x"$host"; then |
| |
| # This lets us hard-code the functionality we know |
| # we'll have in the cross target environment. "Let" is a |
| # sugar-coated word placed on an especially dull and tedious hack, actually. |
| # Here's why GLIBCPP_CHECK_MATH_SUPPORT, and other autoconf macros |
| # that involve linking can't be used: |
| # "cannot open sim-crt0.o" |
| # "cannot open crt0.o" |
| # etc. All this is because there currently exists no unified, |
| # consistent way for top level CC information to be passed down |
| # to target directories: newlib includes, newlib linking info, |
| # libgloss versus newlib crt0.o, etc. When all of this is done, all |
| # of this hokey, excessive AC_DEFINE junk for crosses can be removed. |
| |
| # We are being configured with some form of cross compiler. |
| GLIBCPP_IS_CROSS_COMPILING=1 |
| |
| # If Canadian cross, then don't pick up tools from the build |
| # directory. |
| if test -n "$with_cross_host" && test x"$build" != x"$with_cross_host"; then |
| CANADIAN=yes |
| else |
| CANADIAN=no |
| fi |
| |
| # Construct crosses by hand, eliminating bits that need ld... |
| # GLIBCPP_CHECK_COMPILER_FEATURES |
| # GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT |
| # GLIBCPP_CHECK_MATH_SUPPORT |
| |
| case "$target" in |
| *-linux*) |
| # Check for available headers. |
| AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \ |
| machine/endian.h machine/param.h sys/machine.h sys/types.h \ |
| fp.h locale.h float.h inttypes.h]) |
| SECTION_FLAGS='-ffunction-sections -fdata-sections' |
| AC_SUBST(SECTION_FLAGS) |
| GLIBCPP_CHECK_LINKER_FEATURES |
| GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT |
| GLIBCPP_CHECK_WCHAR_T_SUPPORT |
| os_include_dir="config/os/gnu-linux" |
| AC_DEFINE(HAVE_COPYSIGN) |
| AC_DEFINE(HAVE_COPYSIGNF) |
| AC_DEFINE(HAVE_FINITEF) |
| AC_DEFINE(HAVE_FREXPF) |
| AC_DEFINE(HAVE_HYPOTF) |
| AC_DEFINE(HAVE_SINCOS) |
| AC_DEFINE(HAVE_SINCOSF) |
| if test x"long_double_math_on_this_cpu" = x"yes"; then |
| AC_DEFINE(HAVE_HYPOTL) |
| fi |
| ;; |
| *-hpux*) |
| # Check for available headers. |
| AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \ |
| machine/endian.h machine/param.h sys/machine.h sys/types.h \ |
| fp.h locale.h float.h inttypes.h]) |
| SECTION_FLAGS='-ffunction-sections -fdata-sections' |
| AC_SUBST(SECTION_FLAGS) |
| GLIBCPP_CHECK_LINKER_FEATURES |
| GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT |
| GLIBCPP_CHECK_WCHAR_T_SUPPORT |
| os_include_dir="config/os/hpux" |
| AC_DEFINE(HAVE_COPYSIGN) |
| AC_DEFINE(HAVE_COPYSIGNF) |
| AC_DEFINE(HAVE_FINITEF) |
| AC_DEFINE(HAVE_FREXPF) |
| AC_DEFINE(HAVE_HYPOT) |
| AC_DEFINE(HAVE_SINCOS) |
| AC_DEFINE(HAVE_SINCOSF) |
| ;; |
| *-netbsd*) |
| # Check for available headers. |
| AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \ |
| machine/endian.h machine/param.h sys/machine.h sys/types.h \ |
| fp.h locale.h float.h inttypes.h]) |
| SECTION_FLAGS='-ffunction-sections -fdata-sections' |
| AC_SUBST(SECTION_FLAGS) |
| GLIBCPP_CHECK_LINKER_FEATURES |
| GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT |
| GLIBCPP_CHECK_WCHAR_T_SUPPORT |
| os_include_dir="config/os/bsd/netbsd" |
| AC_DEFINE(HAVE_COPYSIGN) |
| AC_DEFINE(HAVE_COPYSIGNF) |
| AC_DEFINE(HAVE_FINITEF) |
| AC_DEFINE(HAVE_FREXPF) |
| AC_DEFINE(HAVE_HYPOTF) |
| ;; |
| *-mingw32*) |
| AC_CHECK_HEADERS([sys/types.h locale.h float.h]) |
| GLIBCPP_CHECK_LINKER_FEATURES |
| GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT |
| GLIBCPP_CHECK_WCHAR_T_SUPPORT |
| os_include_dir="config/os/mingw32" |
| ;; |
| changequote(,)dnl |
| *-qnx6.[12]*) |
| changequote([,])dnl |
| SECTION_FLAGS='-ffunction-sections -fdata-sections' |
| AC_SUBST(SECTION_FLAGS) |
| GLIBCPP_CHECK_LINKER_FEATURES |
| GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT |
| GLIBCPP_CHECK_WCHAR_T_SUPPORT |
| os_include_dir="config/os/qnx/qnx6.1" |
| AC_DEFINE(HAVE_COSF) |
| AC_DEFINE(HAVE_COSL) |
| AC_DEFINE(HAVE_COSHF) |
| AC_DEFINE(HAVE_COSHL) |
| AC_DEFINE(HAVE_LOGF) |
| AC_DEFINE(HAVE_LOGL) |
| AC_DEFINE(HAVE_LOG10F) |
| AC_DEFINE(HAVE_LOG10L) |
| AC_DEFINE(HAVE_SINF) |
| AC_DEFINE(HAVE_SINL) |
| AC_DEFINE(HAVE_SINHF) |
| AC_DEFINE(HAVE_SINHL) |
| ;; |
| *) |
| os_include_dir="config/os/newlib" |
| AC_DEFINE(HAVE_HYPOT) |
| ;; |
| esac |
| |
| case "$target" in |
| *-mingw32*) |
| ;; |
| *) |
| # GLIBCPP_CHECK_STDLIB_SUPPORT |
| AC_DEFINE(HAVE_STRTOF) |
| AC_DEFINE(HAVE_STRTOLD) |
| # AC_FUNC_MMAP |
| AC_DEFINE(HAVE_MMAP) |
| |
| AC_DEFINE(HAVE_ACOSF) |
| AC_DEFINE(HAVE_ASINF) |
| AC_DEFINE(HAVE_ATAN2F) |
| AC_DEFINE(HAVE_ATANF) |
| AC_DEFINE(HAVE_CEILF) |
| AC_DEFINE(HAVE_COPYSIGN) |
| AC_DEFINE(HAVE_COPYSIGNF) |
| AC_DEFINE(HAVE_COSF) |
| AC_DEFINE(HAVE_COSHF) |
| AC_DEFINE(HAVE_EXPF) |
| AC_DEFINE(HAVE_FABSF) |
| AC_DEFINE(HAVE_FINITE) |
| AC_DEFINE(HAVE_FINITEF) |
| AC_DEFINE(HAVE_FLOORF) |
| AC_DEFINE(HAVE_FMODF) |
| AC_DEFINE(HAVE_FREXPF) |
| AC_DEFINE(HAVE_ISINF) |
| AC_DEFINE(HAVE_ISINFF) |
| AC_DEFINE(HAVE_ISNAN) |
| AC_DEFINE(HAVE_ISNANF) |
| AC_DEFINE(HAVE_LDEXPF) |
| AC_DEFINE(HAVE_LOG10F) |
| AC_DEFINE(HAVE_LOGF) |
| AC_DEFINE(HAVE_MODFF) |
| AC_DEFINE(HAVE_POWF) |
| AC_DEFINE(HAVE_SINF) |
| AC_DEFINE(HAVE_SINHF) |
| AC_DEFINE(HAVE_SQRTF) |
| AC_DEFINE(HAVE_TANF) |
| AC_DEFINE(HAVE_TANHF) |
| ;; |
| esac |
| |
| # At some point, we should differentiate between architectures |
| # like x86, which have long double versions, and alpha/powerpc/etc., |
| # which don't. For the time being, punt. |
| if test x"long_double_math_on_this_cpu" = x"yes"; then |
| AC_DEFINE(HAVE_ACOSL) |
| AC_DEFINE(HAVE_ASINL) |
| AC_DEFINE(HAVE_ATAN2L) |
| AC_DEFINE(HAVE_ATANL) |
| AC_DEFINE(HAVE_CEILL) |
| AC_DEFINE(HAVE_COPYSIGNL) |
| AC_DEFINE(HAVE_COSL) |
| AC_DEFINE(HAVE_COSHL) |
| AC_DEFINE(HAVE_EXPL) |
| AC_DEFINE(HAVE_FABSL) |
| AC_DEFINE(HAVE_FINITEL) |
| AC_DEFINE(HAVE_FLOORL) |
| AC_DEFINE(HAVE_FMODL) |
| AC_DEFINE(HAVE_FREXPL) |
| AC_DEFINE(HAVE_ISINFL) |
| AC_DEFINE(HAVE_ISNANL) |
| AC_DEFINE(HAVE_LDEXPL) |
| AC_DEFINE(HAVE_LOG10L) |
| AC_DEFINE(HAVE_LOGL) |
| AC_DEFINE(HAVE_MODFL) |
| AC_DEFINE(HAVE_POWL) |
| AC_DEFINE(HAVE_SINCOSL) |
| AC_DEFINE(HAVE_SINL) |
| AC_DEFINE(HAVE_SINHL) |
| AC_DEFINE(HAVE_SQRTL) |
| AC_DEFINE(HAVE_TANL) |
| AC_DEFINE(HAVE_TANHL) |
| fi |
| else |
| |
| # We are being configured natively. We can do more elaborate tests |
| # that include AC_TRY_COMPILE now, as the linker is assumed to be |
| # working. |
| GLIBCPP_IS_CROSS_COMPILING=0 |
| CANADIAN=no |
| |
| # Check for available headers. |
| AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h machine/endian.h \ |
| machine/param.h sys/machine.h fp.h locale.h float.h inttypes.h gconv.h sys/types.h]) |
| |
| GLIBCPP_CHECK_COMPILER_FEATURES |
| GLIBCPP_CHECK_LINKER_FEATURES |
| GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT |
| GLIBCPP_CHECK_MATH_SUPPORT |
| GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT |
| GLIBCPP_CHECK_WCHAR_T_SUPPORT |
| GLIBCPP_CHECK_STDLIB_SUPPORT |
| GLIBCPP_CHECK_UNISTD_SUPPORT |
| AC_LC_MESSAGES |
| |
| AC_TRY_COMPILE([ |
| #include <setjmp.h> |
| ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);], |
| [AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ]) |
| ]) |
| |
| AC_FUNC_MMAP |
| |
| # Establish limits on memory usage during 'make check' |
| GLIBCPP_CONFIGURE_TESTSUITE |
| fi |
| |
| # This depends on the possibly-skipped linker test above. |
| GLIBCPP_ENABLE_SYMVERS([yes]) |
| |
| # Propagate the target-specific source directories through the build chain. |
| OS_INC_SRCDIR=$os_include_dir/bits |
| ATOMICITY_INC_SRCDIR=$ATOMICITYH/bits |
| CPU_LIMITS_INC_SRCDIR=$CPULIMITSH/bits |
| AC_SUBST(OS_INC_SRCDIR) |
| AC_SUBST(ATOMICITY_INC_SRCDIR) |
| AC_SUBST(CPU_LIMITS_INC_SRCDIR) |
| |
| # Set up cross-compile flags |
| AC_SUBST(GLIBCPP_IS_CROSS_COMPILING) |
| AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes) |
| |
| AC_CACHE_SAVE |
| |
| if test "${multilib}" = "yes"; then |
| multilib_arg="--enable-multilib" |
| else |
| multilib_arg= |
| fi |
| |
| # Export all the install information |
| GLIBCPP_EXPORT_INSTALL_INFO |
| |
| # Export all the include and flag information to makefiles. |
| GLIBCPP_EXPORT_INCLUDES |
| GLIBCPP_EXPORT_FLAGS |
| |
| if ${CONFIG_SHELL-/bin/sh} ./libtool --tag CXX --features | |
| grep "enable shared" > /dev/null; then |
| LIBSUPCXX_PICFLAGS=-prefer-pic |
| else |
| LIBSUPCXX_PICFLAGS= |
| fi |
| AC_SUBST(LIBSUPCXX_PICFLAGS) |
| |
| # Generate the various Makefiles, include files, and scripts. |
| # NB: Multilibs need MULTISUBDIR defined correctly in src/Makefile.am |
| # and libsupc++/Makefile.am so that multilib installs will end up |
| # installed in the correct place. To work around this not being passed |
| # down from config-ml.in -> top_srcdir/Makefile.am -> |
| # top_srcdir/{src,libsupc++}/Makefile.am, manually append it here. |
| AC_OUTPUT(Makefile \ |
| include/Makefile src/Makefile \ |
| libmath/Makefile libio/Makefile libsupc++/Makefile \ |
| po/Makefile testsuite/Makefile mkcheck testsuite_flags, |
| [if test -n "$CONFIG_FILES"; then |
| LD="${ORIGINAL_LD_FOR_MULTILIBS}" |
| ac_file=Makefile . ${glibcpp_basedir}/../config-ml.in |
| grep '^MULTISUBDIR =' Makefile >> src/Makefile |
| grep '^MULTISUBDIR =' Makefile >> libsupc++/Makefile |
| fi |
| chmod +x mkcheck |
| chmod +x testsuite_flags |
| ], |
| srcdir=${srcdir} |
| host=${host} |
| target=${target} |
| with_multisubdir=${with_multisubdir} |
| ac_configure_args="${multilib_arg} ${ac_configure_args}" |
| CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} |
| glibcpp_basedir=${glibcpp_basedir} |
| CC="${CC}" |
| CXX="${CXX}" |
| ) |
| dnl In autoconf 2.5x, AC_OUTPUT is replaced by three AC_ macros: |
| dnl AC_CONFIG_FILES(Makefile \ |
| dnl include/Makefile src/Makefile \ |
| dnl libmath/Makefile libio/Makefile libsupc++/Makefile \ |
| dnl po/Makefile testsuite/Makefile mkcheck testsuite_flags) |
| dnl AC_CONFIG_COMMANDS([default], |
| dnl [if test -n "$CONFIG_FILES"; then |
| dnl ac_file=Makefile . ${glibcpp_basedir}/../config-ml.in |
| dnl grep '^MULTISUBDIR =' Makefile >> src/Makefile |
| dnl grep '^MULTISUBDIR =' Makefile >> libsupc++/Makefile |
| dnl fi |
| dnl chmod +x mkcheck |
| dnl chmod +x testsuite_flags |
| dnl ], |
| dnl srcdir=${srcdir} |
| dnl host=${host} |
| dnl target=${target} |
| dnl with_multisubdir=${with_multisubdir} |
| dnl ac_configure_args="${multilib_arg} ${ac_configure_args}" |
| dnl CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} |
| dnl glibcpp_basedir=${glibcpp_basedir} |
| dnl CC="${CC}" |
| dnl CXX="${CXX}" |
| dnl ) |
| dnl AC_OUTPUT |
| |
| |
| # Sanity checking & User-visible messages. |
| # Checks down here, otherwise they get scrolled off before |
| # the user will notice. |
| |
| # Trying to get more people to read documentation. Possibly remove |
| # check and warn all the time. There is no "informational" AC_MSG_ |
| # macro, so these are going to be printed even when --quiet/--silent |
| # is given. |
| if test ! -f stamp-sanity-warned; then |
| touch stamp-sanity-warned |
| echo "" |
| echo "Please make certain that you read the installation information here:" |
| echo " faster => ${srcdir}/docs/html/install.html" |
| echo " slower => <URL:http://gcc.gnu.org/onlinedocs/libstdc++/install.html>" |
| echo "" |
| echo "and the configuration information here:" |
| echo " faster => ${srcdir}/docs/html/configopts.html" |
| echo " slower => <URL:http://gcc.gnu.org/onlinedocs/libstdc++/configopts.html>" |
| echo "" |
| echo "before proceeding with ${_cv_gnu_make_command}." |
| echo "" |
| fi |
