diff options
Diffstat (limited to 'gcc/aclocal.m4')
| -rw-r--r-- | gcc/aclocal.m4 | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/gcc/aclocal.m4 b/gcc/aclocal.m4 index febe8a70054..ce44ba19eb9 100644 --- a/gcc/aclocal.m4 +++ b/gcc/aclocal.m4 @@ -1,3 +1,14 @@ +dnl See whether we can include both string.h and strings.h. +AC_DEFUN(GCC_HEADER_STRING, +[AC_CACHE_CHECK([whether string.h and strings.h may both be included], + gcc_cv_header_string, +[AC_TRY_COMPILE([#include <string.h> +#include <strings.h>], , gcc_cv_header_string=yes, gcc_cv_header_string=no)]) +if test $gcc_cv_header_string = yes; then + AC_DEFINE(STRING_WITH_STRINGS) +fi +]) + dnl See whether we need a declaration for a function. dnl GCC_NEED_DECLARATION(FUNCTION [, EXTRA-HEADER-FILES]) AC_DEFUN(GCC_NEED_DECLARATION, @@ -5,12 +16,17 @@ AC_DEFUN(GCC_NEED_DECLARATION, AC_CACHE_VAL(gcc_cv_decl_needed_$1, [AC_TRY_COMPILE([ #include <stdio.h> -#ifdef HAVE_STRING_H -#include <string.h> +#ifdef STRING_WITH_STRINGS +# include <string.h> +# include <strings.h> #else -#ifdef HAVE_STRINGS_H -#include <strings.h> -#endif +# ifdef HAVE_STRING_H +# include <string.h> +# else +# ifdef HAVE_STRINGS_H +# include <strings.h> +# endif +# endif #endif #ifdef HAVE_STDLIB_H #include <stdlib.h> |