--- /dev/null
+#serial 4
+
+dnl From Paul Eggert.
+
+# Define HAVE_INTTYPES_H if <inttypes.h> exists,
+# doesn't clash with <sys/types.h>, and declares uintmax_t.
+
+AC_DEFUN([jm_AC_HEADER_INTTYPES_H],
+[
+ AC_CACHE_CHECK([for inttypes.h], jm_ac_cv_header_inttypes_h,
+ [AC_TRY_COMPILE(
+ [#include <sys/types.h>
+#include <inttypes.h>],
+ [uintmax_t i = (uintmax_t) -1;],
+ jm_ac_cv_header_inttypes_h=yes,
+ jm_ac_cv_header_inttypes_h=no)])
+ if test $jm_ac_cv_header_inttypes_h = yes; then
+ AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H, 1,
+[Define if <inttypes.h> exists, doesn't clash with <sys/types.h>,
+ and declares uintmax_t. ])
+ fi
+])