diff options
Diffstat (limited to 'gl/m4/size_max.m4')
| -rw-r--r-- | gl/m4/size_max.m4 | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/gl/m4/size_max.m4 b/gl/m4/size_max.m4 index e0e7b3ff..ce992db1 100644 --- a/gl/m4/size_max.m4 +++ b/gl/m4/size_max.m4 @@ -1,5 +1,5 @@ -# size_max.m4 serial 7 -dnl Copyright (C) 2003, 2005-2006, 2008 Free Software Foundation, Inc. +# size_max.m4 serial 9 +dnl Copyright (C) 2003, 2005-2006, 2008-2010 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -10,8 +10,7 @@ AC_DEFUN([gl_SIZE_MAX], [ AC_CHECK_HEADERS([stdint.h]) dnl First test whether the system already has SIZE_MAX. - AC_MSG_CHECKING([for SIZE_MAX]) - AC_CACHE_VAL([gl_cv_size_max], [ + AC_CACHE_CHECK([for SIZE_MAX], [gl_cv_size_max], [ gl_cv_size_max= AC_EGREP_CPP([Found it], [ #include <limits.h> @@ -54,11 +53,19 @@ Found it fi fi ]) - AC_MSG_RESULT([$gl_cv_size_max]) if test "$gl_cv_size_max" != yes; then AC_DEFINE_UNQUOTED([SIZE_MAX], [$gl_cv_size_max], [Define as the maximum value of type 'size_t', if the system doesn't define it.]) fi + dnl Don't redefine SIZE_MAX in config.h if config.h is re-included after + dnl <stdint.h>. Remember that the #undef in AH_VERBATIM gets replaced with + dnl #define by AC_DEFINE_UNQUOTED. + AH_VERBATIM([SIZE_MAX], +[/* Define as the maximum value of type 'size_t', if the system doesn't define + it. */ +#ifndef SIZE_MAX +# undef SIZE_MAX +#endif]) ]) dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. |