7 # Define uintmax_t to `unsigned long' or `unsigned long long'
8 # if <inttypes.h> does not exist.
10 AC_DEFUN(jm_AC_TYPE_UINTMAX_T,
12 AC_REQUIRE([jm_AC_HEADER_INTTYPES_H])
13 if test $jm_ac_cv_header_inttypes_h = no; then
14 AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long,
16 [unsigned long long i = (unsigned long long) -1;],
17 ac_cv_type_unsigned_long_long=yes,
18 ac_cv_type_unsigned_long_long=no)])
19 test $ac_cv_type_unsigned_long_long = yes \
20 && ac_type='unsigned long long' \
21 || ac_type='unsigned long'
22 AC_DEFINE(uintmax_t, $ac_type,
23 [ Define to \`unsigned long' or \`unsigned long long'
24 if <inttypes.h> doesn't define.])