diff options
Diffstat (limited to 'libgfortran/acinclude.m4')
| -rw-r--r-- | libgfortran/acinclude.m4 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/libgfortran/acinclude.m4 b/libgfortran/acinclude.m4 index 5b0c094..bf4cc78 100644 --- a/libgfortran/acinclude.m4 +++ b/libgfortran/acinclude.m4 @@ -510,3 +510,26 @@ AC_DEFUN([LIBGFOR_CHECK_AVX128], [ [AM_CONDITIONAL([HAVE_AVX128],false)]) CFLAGS="$ac_save_CFLAGS" ]) + +AC_DEFUN([LIBGFOR_CHECK_MATH_IEEE128], +[ + AC_REQUIRE([GCC_CHECK_LIBM]) + AC_REQUIRE([GCC_CHECK_MATH_HEADERS]) + AC_CACHE_CHECK([for $1], [gcc_cv_math_func_$1], + [AC_LINK_IFELSE([AC_LANG_SOURCE([ +__float128 $1 (__float128); +__float128 (*ptr)(__float128) = $1; + +int +main () +{ + return 0; +} +])], +[gcc_cv_math_func_$1=yes], +[gcc_cv_math_func_$1=no])]) + if test $gcc_cv_math_func_$1 = yes; then + AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$1),[1], + [Define to 1 if you have the `$1' function.]) + fi +]) |