dnl From Paul Eggert.
-AC_PREREQ(2.13)
+AC_PREREQ(2.50)
# 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
+ AC_CHECK_TYPE(uintmax_t, ,
+ [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 the widest unsigned integer type if standard headers do not declare.])])
])