Don't insist on 'long long int' support in the preprocessor. It

[gnulib.git] / m4 / longlong.m4

diff --git a/m4/longlong.m4 b/m4/longlong.m4
index a72e53b..15bf9da 100644 (file)
--- a/m4/longlong.m4
+++ b/m4/longlong.m4
@@ -82,13 +82,10 @@ AC_DEFUN([AC_TYPE_UNSIGNED_LONG_LONG_INT],
 AC_DEFUN([_AC_TYPE_LONG_LONG_SNIPPET],
 [
   AC_LANG_PROGRAM(
-    [[/* Test preprocessor.  */
-      #if ! (-9223372036854775807LL < 0 && 0 < 9223372036854775807ll)
-        error in preprocessor;
-      #endif
-      #if ! (18446744073709551615ULL <= -1ull)
-        error in preprocessor;
-      #endif
+    [[/* For now, do not test the preprocessor; as of 2007 there are too many
+        implementations with broken preprocessors.  Perhaps this can
+        be revisited in 2012.  In the meantime, code should not expect
+        #if to work with literals wider than 32 bits.  */
       /* Test literals.  */
       long long int ll = 9223372036854775807ll;
       long long int nll = -9223372036854775807LL;