diff options
Diffstat (limited to 'libgcobol/configure.ac')
| -rw-r--r-- | libgcobol/configure.ac | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/libgcobol/configure.ac b/libgcobol/configure.ac index ca56997..4bb6905 100644 --- a/libgcobol/configure.ac +++ b/libgcobol/configure.ac @@ -169,7 +169,6 @@ AM_CONDITIONAL(BUILD_LIBGCOBOL, [test "x$LIBGCOBOL_SUPPORTED" = xyes && test "x$ # Check if functions are available in libc before adding extra libs. AC_SEARCH_LIBS([malloc], [c]) AC_SEARCH_LIBS([clock_gettime], [c rt]) -AC_SEARCH_LIBS([cosf128], [c m]) # libgcobol soname version LIBGCOBOL_VERSION=1:0:0 @@ -188,12 +187,53 @@ case $host in esac AC_SUBST(extra_ldflags_libgcobol) +AC_CHECK_HEADERS_ONCE(floatingpoint.h ieeefp.h fenv.h fptrap.h \ +complex.h stdlib.h) + # These are GLIBC AC_CHECK_FUNCS_ONCE(random_r srandom_r initstate_r setstate_r) -# These are C23, and might not be available in libc. +# Some functions we check to figure out if the libc Float128 support +# is adequate. + +# These are C23. AC_CHECK_FUNCS_ONCE(strfromf32 strfromf64) +# These are GLIBC. +AC_CHECK_FUNCS_ONCE(strtof128 strfromf128) +# We need to make sure to check libc before adding libm. +libgcobol_have_sinf128=no +AC_SEARCH_LIBS([sinf128], [c m], libgcobol_have_sinf128=yes) +libgcobol_have_cacosf128=no +AC_SEARCH_LIBS([cacosf128], [c m], libgcobol_have_cacosf128=yes) + +have_iec_60559_libc_support=no +if test "x$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 |