[SCM] GNU Autoconf source repository branch, master, updated. v2.61a-289-g6756684

[Paul Eggert]

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- Log -----------------------------------------------------------------
commit 675668479dc1587bf69aadb223046bc31709ab4a
Author: Paul Eggert <address@hidden>
Date:   Wed Nov 14 15:42:59 2007 -0800

    * lib/autoconf/types.m4 (_AC_TYPE_LONG_LONG_SNIPPET): Make comment match
    
    gnulib.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog             |    5 +++++
 lib/autoconf/types.m4 |    6 +++++-
 2 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index e81f386..1e6baa4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-11-14  Paul Eggert  <address@hidden>
+
+       * lib/autoconf/types.m4 (_AC_TYPE_LONG_LONG_SNIPPET): Make comment match
+       gnulib.
+
 2007-11-14  Ralf Wildenhues  <address@hidden>
 
        * lib/autoconf/status.m4: Fix a couple of comment typos.
diff --git a/lib/autoconf/types.m4 b/lib/autoconf/types.m4
index 6f03738..866e514 100644
--- a/lib/autoconf/types.m4
+++ b/lib/autoconf/types.m4
@@ -475,7 +475,11 @@ You should use `AC_TYPE_LONG_DOUBLE' or 
`AC_TYPE_LONG_DOUBLE_WIDER' instead.]
 AC_DEFUN([_AC_TYPE_LONG_LONG_SNIPPET],
 [
   AC_LANG_PROGRAM(
-    [[/* Test literals.  */
+    [[/* 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;
       unsigned long long int ull = 18446744073709551615ULL;


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