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[PATCH] lseek: fix link test
From: |
Eric Blake |
Subject: |
[PATCH] lseek: fix link test |
Date: |
Thu, 26 Aug 2010 16:23:34 -0600 |
Another bug spotted by autoconf.
* m4/lseek.m4 (gl_FUNC_LSEEK): Use correct format for
AC_LINK_IFELSE.
Signed-off-by: Eric Blake <address@hidden>
---
This is the last buggy use spotted among coreutils' choice of modules;
but there are probably others lurking in gnulib. I haven't yet tried
if gnulib-tool --create-megatestdir will flush them out...
ChangeLog | 4 ++++
m4/lseek.m4 | 14 ++++++--------
2 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 146e522..af835b6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
2010-08-26 Eric Blake <address@hidden>
+ lseek: fix link test
+ * m4/lseek.m4 (gl_FUNC_LSEEK): Use correct format for
+ AC_LINK_IFELSE.
+
include_next: silence autoconf 2.68 warning
* m4/include_next.m4 (gl_INCLUDE_NEXT): Mark this use of
AC_COMPILE_IFELSE as special.
diff --git a/m4/lseek.m4 b/m4/lseek.m4
index 9bf4dc2..b0612c7 100644
--- a/m4/lseek.m4
+++ b/m4/lseek.m4
@@ -1,4 +1,4 @@
-# lseek.m4 serial 5
+# lseek.m4 serial 6
dnl Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -10,15 +10,13 @@ AC_DEFUN([gl_FUNC_LSEEK],
AC_REQUIRE([AC_PROG_CC])
AC_CACHE_CHECK([whether lseek detects pipes], [gl_cv_func_lseek_pipe],
[if test $cross_compiling = no; then
- AC_LINK_IFELSE([
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h> /* for off_t */
#include <stdio.h> /* for SEEK_CUR */
-#include <unistd.h>
-int main ()
-{
+#include <unistd.h>]], [[
/* Exit with success only if stdin is seekable. */
return lseek (0, (off_t)0, SEEK_CUR) < 0;
-}],
+]])],
[if test -s conftest$ac_exeext \
&& ./conftest$ac_exeext < conftest.$ac_ext \
&& test 1 = "`echo hi \
@@ -29,11 +27,11 @@ int main ()
fi],
[gl_cv_func_lseek_pipe=no])
else
- AC_COMPILE_IFELSE([
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) || defined
__BEOS__
/* mingw and BeOS mistakenly return 0 when trying to seek on pipes. */
Choke me.
-#endif],
+#endif]])],
[gl_cv_func_lseek_pipe=yes], [gl_cv_func_lseek_pipe=no])
fi])
if test $gl_cv_func_lseek_pipe = no; then
--
1.7.2.2
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