diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/types.m4 | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/m4/types.m4 b/m4/types.m4 new file mode 100644 index 00000000..5f219fbf --- /dev/null +++ b/m4/types.m4 @@ -0,0 +1,36 @@ +dnl types.m4 +dnl macros for type checks not covered by autoconf + +dnl MUTT_C99_INTTYPES +dnl Brendan Cully +dnl +# MUTT_C99_INTTYPES +# Check for C99 integer type definitions, or define if missing +AC_DEFUN([MUTT_C99_INTTYPES], +[dnl +AC_CHECK_HEADERS([inttypes.h]) +AC_CHECK_TYPE([uint32_t], + [AC_DEFINE(HAVE_C99_INTTYPES, 1, [Define if you have the C99 integer types])], + [AC_CHECK_SIZEOF(short) + AC_CHECK_SIZEOF(int) + AC_CHECK_SIZEOF(long) + AC_CHECK_SIZEOF(long long)]) +AH_VERBATIM([X_HAVE_C99_INTTYPES], + [#ifndef HAVE_C99_INTTYPES +# if SIZEOF_SHORT == 4 +typedef unsigned short uint32_t; +# elif SIZEOF_INT == 4 +typedef unsigned int uint32_t; +# elif SIZEOF_LONG == 4 +typedef unsigned long uint32_t; +# endif +# if SIZEOF_INT == 8 +typedef unsigned int uint64_t; +# elif SIZEOF_LONG == 8 +typedef unsigned long uint64_t; +# elif SIZEOF_LONG_LONG == 8 +typedef unsigned long long uint64_t; +# endif +#endif + ]) +]) |