diff options
Diffstat (limited to 'm4/limits-h.m4')
| -rw-r--r-- | m4/limits-h.m4 | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/m4/limits-h.m4 b/m4/limits-h.m4 index 83886634396..3a2cd91ead0 100644 --- a/m4/limits-h.m4 +++ b/m4/limits-h.m4 @@ -11,14 +11,18 @@ AC_DEFUN_ONCE([gl_LIMITS_H], [ gl_CHECK_NEXT_HEADERS([limits.h]) - AC_CACHE_CHECK([whether limits.h has ULLONG_WIDTH etc.], + AC_CACHE_CHECK([whether limits.h has LLONG_MAX, WORD_BIT, ULLONG_WIDTH etc.], [gl_cv_header_limits_width], [AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM([[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__ - #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 - #endif - #include <limits.h> - int ullw = ULLONG_WIDTH;]])], + [AC_LANG_PROGRAM( + [[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__ + #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 + #endif + #include <limits.h> + long long llm = LLONG_MAX; + int wb = WORD_BIT; + int ullw = ULLONG_WIDTH; + ]])], [gl_cv_header_limits_width=yes], [gl_cv_header_limits_width=no])]) if test "$gl_cv_header_limits_width" = yes; then |