diff options
Diffstat (limited to 'gcc/configure.ac')
| -rw-r--r-- | gcc/configure.ac | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/configure.ac b/gcc/configure.ac index a055581..d4d09f5 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -1154,6 +1154,12 @@ gcc_AC_CHECK_DECLS(times, , ,[ #endif ]) +gcc_AC_CHECK_DECLS(sigaltstack, , ,[ +#include "ansidecl.h" +#include "system.h" +#include <signal.h> +]) + # More time-related stuff. AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ @@ -1337,6 +1343,22 @@ if test "$host_xm_file" != "$build_xm_file"; then fi fi +case ${host} in + powerpc-*-darwin*) + AC_CACHE_CHECK([whether mcontext_t fields have underscores], + gcc_cv_mcontext_underscores, + AC_COMPILE_IFELSE([ +#include <ucontext.h> +int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } +], + gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) + if test $gcc_cv_mcontext_underscores = yes; then + AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl + [mcontext_t fields start with __]) + fi + ;; +esac + # --------- # Threading # --------- |