diff options
| author | Jim Meyering <jim@meyering.net> | 1997-11-30 13:35:35 +0000 |
|---|---|---|
| committer | Jim Meyering <jim@meyering.net> | 1997-11-30 13:35:35 +0000 |
| commit | d29ca4559565d93b829312293630aa1a110382a1 (patch) | |
| tree | c2907a06355ee3721fd0d03ad4261b4d2b83bf77 /m4/uintmax_t.m4 | |
| parent | 9e2eec1ca901ae33a19bc74e7da4fe8c6e5c1c56 (diff) | |
| download | coreutils-d29ca4559565d93b829312293630aa1a110382a1.tar.xz | |
.
Diffstat (limited to 'm4/uintmax_t.m4')
| -rw-r--r-- | m4/uintmax_t.m4 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/m4/uintmax_t.m4 b/m4/uintmax_t.m4 new file mode 100644 index 000000000..b9855a6f8 --- /dev/null +++ b/m4/uintmax_t.m4 @@ -0,0 +1,23 @@ +#serial 1 + +dnl From Paul Eggert. + +# Define uintmax_t to `unsigned long' or `unsigned long long' +# if <inttypes.h> does not exist. + +AC_DEFUN(jm_AC_TYPE_UINTMAX_T, +[ + AC_REQUIRE([jm_AC_HEADER_INTTTYPES_H]) + if test $jm_ac_cv_header_inttypes_h = no; then + AC_CACHE_CHECK(for unsigned long long, ac_cv_type_unsigned_long_long, + [AC_TRY_COMPILE([], + [unsigned long long i = (unsigned long long) -1;], + ac_cv_type_unsigned_long_long=yes, + ac_cv_type_unsigned_long_long=no)]) + if test $ac_cv_type_unsigned_long_long = yes; then + AC_DEFINE(uintmax_t, unsigned long long) + else + AC_DEFINE(uintmax_t, unsigned long) + fi + fi +]) |