diff options
Diffstat (limited to 'libquadmath/configure')
| -rwxr-xr-x | libquadmath/configure | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/libquadmath/configure b/libquadmath/configure index 16776719d01..0ea6e07455d 100755 --- a/libquadmath/configure +++ b/libquadmath/configure @@ -11947,6 +11947,43 @@ fi done + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the math.h includes POSIX's signgam" >&5 +$as_echo_n "checking whether the math.h includes POSIX's signgam... " >&6; } +if test "${libgfor_cv_have_math_h_signgam+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Werror" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <math.h> +void foo(void) { signgam = 1; } +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libgfor_cv_have_math_h_signgam=yes +else + libgfor_cv_have_math_h_signgam=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + CFLAGS="$save_CFLAGS" +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgfor_cv_have_math_h_signgam" >&5 +$as_echo "$libgfor_cv_have_math_h_signgam" >&6; } + if test $libgfor_cv_have_math_h_signgam = yes; then + +$as_echo "#define HAVE_MATH_H_SIGNGAM 1" >>confdefs.h + + fi + # If available, sqrtl and cbrtl speed up the calculation - # but they are not required if test x$gcc_no_link != xyes; then |