diff options
Diffstat (limited to 'config')
| -rw-r--r-- | config/ChangeLog | 5 | ||||
| -rw-r--r-- | config/acx.m4 | 34 |
2 files changed, 39 insertions, 0 deletions
diff --git a/config/ChangeLog b/config/ChangeLog index fe84578..5f4adec 100644 --- a/config/ChangeLog +++ b/config/ChangeLog @@ -1,3 +1,8 @@ +2004-05-23 Paolo Bonzini <bonzini@gnu.org> + + * acx.m4 (ACX_HEADER_STDBOOL, ACX_HEADER_STRING): + From gcc. + 2004-04-16 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE> * acx.m4 (ACX_PROG_GNAT): Check if ${CC} produces object file for diff --git a/config/acx.m4 b/config/acx.m4 index 3652836..b96d688 100644 --- a/config/acx.m4 +++ b/config/acx.m4 @@ -224,3 +224,37 @@ AC_DEFUN([ACX_PROG_CMP_IGNORE_INITIAL], do_compare="$gcc_cv_prog_cmp_skip" AC_SUBST(do_compare) ]) + +dnl See whether we can include both string.h and strings.h. +AC_DEFUN([ACX_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, 1, [Define if you can safely include both <string.h> and <strings.h>.]) +fi +]) + +dnl See if stdbool.h properly defines bool and true/false. +dnl Check whether _Bool is built-in. +AC_DEFUN([ACX_HEADER_STDBOOL], +[AC_CACHE_CHECK([for working stdbool.h], + ac_cv_header_stdbool_h, +[AC_TRY_COMPILE([#include <stdbool.h>], +[bool foo = false;], +ac_cv_header_stdbool_h=yes, ac_cv_header_stdbool_h=no)]) +if test $ac_cv_header_stdbool_h = yes; then + AC_DEFINE(HAVE_STDBOOL_H, 1, + [Define if you have a working <stdbool.h> header file.]) +fi +AC_CACHE_CHECK(for built-in _Bool, gcc_cv_c__bool, +[AC_TRY_COMPILE(, +[_Bool foo;], +gcc_cv_c__bool=yes, gcc_cv_c__bool=no) +]) +if test $gcc_cv_c__bool = yes; then + AC_DEFINE(HAVE__BOOL, 1, [Define if the \`_Bool' type is built-in.]) +fi +]) + |