Doc tweak.

[gnulib.git] / m4 / longlong.m4

diff --git a/m4/longlong.m4 b/m4/longlong.m4
index 15dc21b..15bf9da 100644 (file)
--- a/m4/longlong.m4
+++ b/m4/longlong.m4
@@ -1,4 +1,4 @@
-# longlong.m4 serial 12
+# longlong.m4 serial 13
 dnl Copyright (C) 1999-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -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;
@@ -107,14 +104,3 @@ AC_DEFUN([_AC_TYPE_LONG_LONG_SNIPPET],
              | (ull << 63) | (ull >> 63) | (ull << i) | (ull >> i)
              | (ullmax / ull) | (ullmax % ull));]])
 ])
-
-# This macro is obsolescent and should go away soon.
-AC_DEFUN([gl_AC_TYPE_LONG_LONG],
-[
-  AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
-  ac_cv_type_long_long=$ac_cv_type_long_long_int
-  if test $ac_cv_type_long_long = yes; then
-    AC_DEFINE(HAVE_LONG_LONG, 1,
-      [Define if you have the 'long long' type.])
-  fi
-])