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Cygwin will soon be releasing 1.5.25, which fixes several bugs but adds no
new functions [1].  Therefore, the test for cygwin-specific breakage in
fseeko in 1.5.24 and earlier, which was using a compile-time test that
triggered off of the addition of asnprintf in cygwin CVS head, failed to
catch that the fseeko bug in question is now fixed.  I'm committing this,
which swaps to a different compile-time test of something also fixed for
1.5.25.

[1] http://cygwin.com/ml/cygwin/2007-12/msg00009.html

- --
Don't work too hard, make some time for fun as well!

Eric Blake             [EMAIL PROTECTED]
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>From f6db1c2cee50fb3330cac4adf8a1e91f8b649408 Mon Sep 17 00:00:00 2001
From: Eric Blake <[EMAIL PROTECTED]>
Date: Sat, 1 Dec 2007 11:53:07 -0700
Subject: [PATCH] Fix fseeko detection for cygwin 1.5.25.

* m4/stdio_h.m4 (gl_STDIN_LARGE_OFFSET) [__CYGWIN__]: Rewrite to
accomodate fix in cygwin 1.5.25.

Signed-off-by: Eric Blake <[EMAIL PROTECTED]>
---
 ChangeLog     |    5 +++++
 m4/stdio_h.m4 |   16 +++++++++-------
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 374322b..9f3f241 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-12-01  Eric Blake  <[EMAIL PROTECTED]>
+
+       * m4/stdio_h.m4 (gl_STDIN_LARGE_OFFSET) [__CYGWIN__]: Rewrite to
+       accomodate fix in cygwin 1.5.25.
+
 2007-12-01  Jim Meyering  <[EMAIL PROTECTED]>
 
        Fix a bug that inhibited much of the utf8-optimization in regcomp.c.
diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4
index 45e54e2..83d48ec 100644
--- a/m4/stdio_h.m4
+++ b/m4/stdio_h.m4
@@ -73,13 +73,15 @@ AC_DEFUN([gl_STDIN_LARGE_OFFSET],
       [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>],
 [#if defined __SL64 && defined __SCLE /* cygwin */
   /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making
-     fseeko/ftello needlessly fail.  This bug was fixed at the same time
-     that cygwin started exporting asnprintf (cygwin 1.7.0), so we use
-     that as a link-time test for cross-compiles rather than building
-     a runtime test.  */
-  size_t s;
-  if (asnprintf (NULL, &s, ""))
-    return 0;
+     fseeko/ftello needlessly fail.  This bug was fixed in 1.5.25, at the
+     same time that cygwin fixed the declaration of "long timezone" to no
+     longer be a macro, so we use that as a compile-time test for
+     cross-compiles rather than building a runtime test.  */
+# define timezonevar
+# include <sys/time.h>
+# ifdef timezone
+  choke me
+# endif
 #endif])],
        [gl_cv_var_stdin_large_offset=yes],
        [gl_cv_var_stdin_large_offset=no])])
-- 
1.5.3.5

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