diff options
Diffstat (limited to 'libgcobol/configure.ac')
| -rw-r--r-- | libgcobol/configure.ac | 355 |
1 files changed, 187 insertions, 168 deletions
diff --git a/libgcobol/configure.ac b/libgcobol/configure.ac index 2e4a88e..acfca7e 100644 --- a/libgcobol/configure.ac +++ b/libgcobol/configure.ac @@ -26,8 +26,37 @@ AC_INIT(package-unused, version-unused,,libgcobol) AC_CONFIG_SRCDIR(Makefile.am) AC_CONFIG_HEADER(config.h) +# Do not delete or change the following two lines. For why, see +# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html +AC_CANONICAL_SYSTEM +ACX_NONCANONICAL_TARGET + AM_ENABLE_MULTILIB(, ..) +target_alias=${target_alias-$host_alias} +AC_SUBST(target_alias) + +AM_MAINTAINER_MODE + +AM_INIT_AUTOMAKE([1.15.1 no-define foreign no-dist -Wall -Wno-portability]) + +AC_MSG_CHECKING([for --enable-libgcobol]) +AC_ARG_ENABLE(libgcobol, + [AS_HELP_STRING([--enable-libgcobol], [Enable libgcobol])]) +AC_MSG_RESULT($enable_libgcobol) + +AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) +AC_ARG_ENABLE(version-specific-runtime-libs, +AS_HELP_STRING([--enable-version-specific-runtime-libs], +[Specify that runtime libraries should be installed in a compiler-specific directory]), +[case "$enableval" in + yes) version_specific_libs=yes ;; + no) version_specific_libs=no ;; + *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; + esac], +[version_specific_libs=no]) +AC_MSG_RESULT($version_specific_libs) + # This works around the fact that libtool configuration may change LD # for this particular configuration, but some shells, instead of # keeping the changes in LD private, export them just because LD is @@ -38,107 +67,40 @@ GCC_NO_EXECUTABLES AC_USE_SYSTEM_EXTENSIONS -# Do not delete or change the following two lines. For why, see -# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html -AC_CANONICAL_SYSTEM -target_alias=${target_alias-$host_alias} -AC_SUBST(target_alias) - -AM_INIT_AUTOMAKE # ([1.15.1 no-define foreign no-dist -Wall -Wno-portability]) +# Find other programs we need. +AC_CHECK_TOOL(AR, ar) +AC_CHECK_TOOL(NM, nm) +AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error) +AC_PROG_MAKE_SET +AC_PROG_INSTALL -AH_TEMPLATE(PACKAGE, [Name of package]) -AH_TEMPLATE(VERSION, [Version number of package]) +AM_PROG_LIBTOOL +LT_INIT -AC_ARG_WITH(cross-host, -[ --with-cross-host=HOST Configuring with a cross compiler]) +AC_LIBTOOL_DLOPEN +LT_LIB_M -# Checks for header files. -AC_CHECK_HEADERS(malloc.h) +AM_CONDITIONAL([ENABLE_DARWIN_AT_RPATH], [test x$enable_darwin_at_rpath = xyes]) -AC_CANONICAL_HOST -ACX_NONCANONICAL_HOST -ACX_NONCANONICAL_TARGET -GCC_TOPLEV_SUBDIRS +AC_SUBST(enable_shared) +AC_SUBST(enable_static) -AC_CHECK_SIZEOF([void *]) +# This library is written in C++ and needs to link with the C++ runtime. +AC_LANG([C++]) -# Get target configury. -unset LIBGCOBOL_SUPPORTED -. ${srcdir}/configure.tgt - -# ----------------- -# __int128 support -# ----------------- +# We must force CC/CXX to /not/ be precious variables; otherwise +# the wrong, non-multilib-adjusted value will be used in multilibs. +# As a side effect, we have to subst CFLAGS ourselves. -AC_CACHE_CHECK([whether __int128 is supported], [libgcobol_cv_have_int128], - [GCC_TRY_COMPILE_OR_LINK([ - __int128 foo (__int128 ) - { - __int128 aaa; - return (__int128) aaa; - } +m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) +m4_define([_AC_ARG_VAR_PRECIOUS],[]) +AC_PROG_CXX +m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) - __int128 bar (__int128 ) - { - __int128 aaa; - return (__int128) aaa; - } - ],[ - foo (1); - bar (1); - ],[ - libgcobol_cv_have_int128=yes - ],[ - libgcobol_cv_have_int128=no -])]) -# The following conditional is useful when this creates a Makefile.am file that -# is subsequently processed into a Makefile.in file. At the present time, -# however the libgcobol build uses a hardcoded Makefile.in file. -AM_CONDITIONAL(BUILD_LIBGCOBOL, [test "x$LIBGCOBOL_SUPPORTED" = xyes && test "x$libgcobol_cv_have_int128" = xyes]) +AC_SUBST(CXXFLAGS) GCC_WITH_TOOLEXECLIBDIR -AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) -AC_ARG_ENABLE(version-specific-runtime-libs, -[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], -[case "$enableval" in - yes) version_specific_libs=yes ;; - no) version_specific_libs=no ;; - *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; - esac], -[version_specific_libs=no]) -AC_MSG_RESULT($version_specific_libs) - -AC_ARG_WITH(slibdir, -[ --with-slibdir=DIR shared libraries in DIR [LIBDIR]], -slibdir="$with_slibdir", -if test "${version_specific_libs}" = yes; then - slibdir='$(libsubdir)' -elif test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then - slibdir='$(exec_prefix)/$(host_noncanonical)/lib' -else - slibdir='$(libdir)' -fi) -AC_SUBST(slibdir) - -# Command-line options. -# Very limited version of AC_MAINTAINER_MODE. -AC_ARG_ENABLE([maintainer-mode], - [AC_HELP_STRING([--enable-maintainer-mode], - [enable make rules and dependencies not useful (and - sometimes confusing) to the casual installer])], - [case ${enable_maintainer_mode} in - yes) MAINT='' ;; - no) MAINT='#' ;; - *) AC_MSG_ERROR([--enable-maintainer-mode must be yes or no]) ;; - esac - maintainer_mode=${enableval}], - [MAINT='#']) -AC_SUBST([MAINT])dnl - -toolexecdir=no -toolexeclibdir=no - # Calculate toolexeclibdir # Also toolexecdir, though it's only used in toolexeclibdir case ${version_specific_libs} in @@ -166,109 +128,166 @@ case ${version_specific_libs} in esac ;; esac - AC_SUBST(toolexecdir) AC_SUBST(toolexeclibdir) -# Determine what GCC version number to use in filesystem paths. -GCC_BASE_VER - -AH_TEMPLATE(PACKAGE, [Name of package]) -AH_TEMPLATE(VERSION, [Version number of package]) - -AM_MAINTAINER_MODE - -# Check the compiler. -# The same as in boehm-gc and libstdc++. Have to borrow it from there. -# We must force CC to /not/ be precious variables; otherwise -# the wrong, non-multilib-adjusted value will be used in multilibs. -# As a side effect, we have to subst CFLAGS ourselves. - -m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) -m4_define([_AC_ARG_VAR_PRECIOUS],[]) -AC_PROG_CC -AC_PROG_CXX -AM_PROG_AS -m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) - -AC_SUBST(CFLAGS) +# For iconv support. +AM_ICONV -# In order to override CFLAGS_FOR_TARGET, all of our special flags go -# in XCFLAGS. But we need them in CFLAGS during configury. So put them -# in both places for now and restore CFLAGS at the end of config. -save_CFLAGS="$CFLAGS" - -# Find other programs we need. -AC_CHECK_TOOL(AR, ar) -AC_CHECK_TOOL(NM, nm) -AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error) -AC_PROG_MAKE_SET -AC_PROG_INSTALL - -AM_PROG_LIBTOOL -LT_INIT - -AC_LIBTOOL_DLOPEN +# Checks for header files. +AC_CHECK_HEADERS(malloc.h) -AM_CONDITIONAL([ENABLE_DARWIN_AT_RPATH], [test x$enable_darwin_at_rpath = xyes]) +AC_CHECK_SIZEOF([void *]) -AC_SUBST(enable_shared) -AC_SUBST(enable_static) +# Get target configury. +unset LIBGCOBOL_SUPPORTED +. ${srcdir}/configure.tgt -if test "${multilib}" = "yes"; then - multilib_arg="--enable-multilib" -else - multilib_arg= -fi +# Decide if it's usable. +case $LIBGCOBOL_SUPPORTED:$enable_libgcobol in +*:no) use_libgcobol=no ;; +*:yes) use_libgcobol=yes ;; +yes:*) use_libgcobol=yes ;; +*:*) use_libgcobol=no ;; +esac -AC_LANG_C -# Check the compiler. -# The same as in boehm-gc and libstdc++. Have to borrow it from there. -# We must force CC to /not/ be precious variables; otherwise -# the wrong, non-multilib-adjusted value will be used in multilibs. -# As a side effect, we have to subst CFLAGS ourselves. +# ----------------- +# __int128 support +# ----------------- -m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) -m4_define([_AC_ARG_VAR_PRECIOUS],[]) -AC_PROG_CC -m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) +AC_CACHE_CHECK([whether __int128 is supported], [libgcobol_cv_have_int128], + [GCC_TRY_COMPILE_OR_LINK([ + __int128 foo (__int128 ) + { + __int128 aaa; + return (__int128) aaa; + } -AC_SUBST(CFLAGS) + __int128 bar (__int128 ) + { + __int128 aaa; + return (__int128) aaa; + } + ],[ + foo (1); + bar (1); + ],[ + libgcobol_cv_have_int128=yes + ],[ + libgcobol_cv_have_int128=no +])]) -CC_FOR_BUILD=${CC_FOR_BUILD:-gcc} -AC_SUBST(CC_FOR_BUILD) +AM_CONDITIONAL(BUILD_LIBGCOBOL, [test "x$use_libgcobol" = xyes && test "x$libgcobol_cv_have_int128" = xyes]) +# Check if functions are available in libc before adding extra libs. AC_SEARCH_LIBS([malloc], [c]) -AC_SEARCH_LIBS([cosf], [m]) -AC_SEARCH_LIBS([clock_gettime], [rt]) - -# Add dependencies for libgcobol.spec file -SPEC_LIBGCOBOL_DEPS="$LIBS" -AC_SUBST(SPEC_LIBGCOBOL_DEPS) +AC_SEARCH_LIBS([clock_gettime], [c rt]) # libgcobol soname version LIBGCOBOL_VERSION=1:0:0 AC_SUBST(LIBGCOBOL_VERSION) -## added -VERSION_SUFFIX=$(echo $LIBGCOBOL_VERSION | tr ':' '.' ) -AC_SUBST(VERSION_SUFFIX) +## added, currently unused. +# VERSION_SUFFIX=$(echo $LIBGCOBOL_VERSION | tr ':' '.' ) +# AC_SUBST(VERSION_SUFFIX) ## end added -# Determine what GCC version number to use in filesystem paths. -GCC_BASE_VER - -extra_darwin_ldflags_libgcobol= +extra_ldflags_libgcobol= case $host in *-*-darwin*) - extra_darwin_ldflags_libgcobol=-Wl,-U,___cobol_main ;; + extra_ldflags_libgcobol=-Wl,-U,___cobol_main ;; *) ;; esac -AC_SUBST(extra_darwin_ldflags_libgcobol) +AC_SUBST(extra_ldflags_libgcobol) + +AC_CHECK_HEADERS_ONCE(floatingpoint.h ieeefp.h fenv.h fptrap.h \ +complex.h stdlib.h errno.h) + +# Look for a way to represent the program name +# First, check the GLIBC case +AC_CHECK_DECLS([program_invocation_short_name], , ,[ +#if HAVE_ERRNO_H +# define _GNU_SOURCE +# include <errno.h> +#endif +]) + +# Check an alternate +AC_CHECK_FUNCS_ONCE(getprogname) + +# These are GLIBC +AC_CHECK_FUNCS_ONCE(random_r srandom_r initstate_r setstate_r) + +# Some functions we check to figure out if the libc Float128 support +# is adequate. + +# These are C23. +AC_CHECK_FUNCS_ONCE(strfromf32 strfromf64) + +# These are GLIBC. +AC_CHECK_FUNCS_ONCE(strtof128 strfromf128) +# We need to make sure to check libc before adding libm. +libgcobol_have_sinf128=no +AC_SEARCH_LIBS([sinf128], [c m], libgcobol_have_sinf128=yes) +libgcobol_have_cacosf128=no +AC_SEARCH_LIBS([cacosf128], [c m], libgcobol_have_cacosf128=yes) + +# Copied from gcc/configure.ac. 2025-06-05 R.J.Dubner +# At least for glibc, clock_gettime is in librt. But don't pull that +# in if it still doesn't give us the function we want. +ac_cv_func_clock_gettime=no +if test $ac_cv_func_clock_gettime = no; then + AC_CHECK_LIB(rt, clock_gettime, + [LIBS="-lrt $LIBS" + AC_DEFINE(HAVE_CLOCK_GETTIME, 1, + [Define to 1 if you have the `clock_gettime' function.])]) +fi + +have_iec_60559_libc_support=no +if test "x$ac_cv_func_strtof128$ac_cv_func_strfromf128" = xyesyes \ + && test "x$libgcobol_have_sinf128$libgcobol_have_cacosf128" = xyesyes; then + have_iec_60559_libc_support=yes +fi + +# Check whether libquadmath should be used +AC_ARG_ENABLE(libquadmath, +AS_HELP_STRING([--disable-libquadmath], + [disable libquadmath support for libgcobol]), +ENABLE_LIBQUADMATH_SUPPORT=$enableval, +if test "x$have_iec_60559_libc_support" = xyes; then + ENABLE_LIBQUADMATH_SUPPORT=default +else + ENABLE_LIBQUADMATH_SUPPORT=yes +fi) +enable_libquadmath_support= +if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then + enable_libquadmath_support=no +elif test "${ENABLE_LIBQUADMATH_SUPPORT}" = "default" ; then + enable_libquadmath_support=default +fi +LIBGCOBOL_CHECK_FLOAT128 + +# struct tm tm_zone is a POSIX.1-2024 addition. +AC_CHECK_MEMBERS([struct tm.tm_zone],,,[#include <time.h>]) + +if test "${multilib}" = "yes"; then + multilib_arg="--enable-multilib" +else + multilib_arg= +fi + +# Determine what GCC version number to use in filesystem paths. +GCC_BASE_VER + +# Add dependencies for libgcobol.spec file, this might be excessive - since +# the spec file might not use all of them. +SPEC_LIBGCOBOL_DEPS="$LIBS" +AC_SUBST(SPEC_LIBGCOBOL_DEPS) -AC_CONFIG_SRCDIR([Makefile.am]) -AC_CONFIG_FILES([Makefile]) -####AC_CONFIG_FILES(libgcobol.spec) +AC_CONFIG_FILES([ +Makefile +libgcobol.spec +]) AC_MSG_NOTICE([libgcobol has been configured.]) |