Use 3-arg form of AC_DEFINE.

diff --git a/m4/uintmax_t.m4 b/m4/uintmax_t.m4
index 4c1d196..8c0189b 100644 (file)
--- a/m4/uintmax_t.m4
+++ b/m4/uintmax_t.m4
@@ -1,7 +1,9 @@
-#serial 1
+#serial 2
 
 dnl From Paul Eggert.
 
+AC_PREREQ(2.13)
+
 # Define uintmax_t to `unsigned long' or `unsigned long long'
 # if <inttypes.h> does not exist.
 
@@ -14,10 +16,11 @@ AC_DEFUN(jm_AC_TYPE_UINTMAX_T,
       [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
+    test $ac_cv_type_unsigned_long_long = yes \
+      && ac_type='unsigned long long' \
+      || ac_type='unsigned long'
+    AC_DEFINE(uintmax_t, $ac_type,
+             [  Define to \`unsigned long' or \`unsigned long long'
+   if <inttypes.h> doesn't define.])
   fi
 ])