uintmax_t.m4   [plain text]

#serial 3

dnl From Paul Eggert.

AC_PREREQ(2.13)

# 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_INTTYPES_H])
  if test $jm_ac_cv_header_inttypes_h = no; then
    AC_REQUIRE([jm_AC_TYPE_UNSIGNED_LONG_LONG])
    test $ac_cv_type_unsigned_long_long = yes \
      && ac_type='unsigned long long' \
      || ac_type='unsigned long'
    AC_DEFINE_UNQUOTED(uintmax_t, $ac_type,
[  Define to \`unsigned long' or \`unsigned long long'
   if <inttypes.h> doesn't define.])
  fi
])