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[PATCH] pipe2: silence compiler warning


From: Eric Blake
Subject: [PATCH] pipe2: silence compiler warning
Date: Wed, 17 Aug 2011 14:36:25 -0600

Detected when testing pipe2 in isolation on mingw.  The fail: label
needs either gnulib O_NONBLOCK emulation, or non-Windows systems.

* lib/pipe2.c (pipe2): Hide label if it is not used.

Signed-off-by: Eric Blake <address@hidden>
---
 ChangeLog   |    3 +++
 lib/pipe2.c |    3 +++
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 41776a9..08d58bc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2011-08-17  Eric Blake  <address@hidden>

+       pipe2: silence compiler warning
+       * lib/pipe2.c (pipe2): Hide label if it is not used.
+
        getcwd: fix compilation on mingw64
        * lib/unistd.in.h (includes) [mingw]: Include <direct.h> for
        getcwd.
diff --git a/lib/pipe2.c b/lib/pipe2.c
index 12cac6e..5420788 100644
--- a/lib/pipe2.c
+++ b/lib/pipe2.c
@@ -151,6 +151,8 @@ pipe2 (int fd[2], int flags)

 #endif

+#if GNULIB_defined_O_NONBLOCK || \
+  !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
  fail:
   {
     int saved_errno = errno;
@@ -161,4 +163,5 @@ pipe2 (int fd[2], int flags)
     errno = saved_errno;
     return -1;
   }
+#endif
 }
-- 
1.7.4.4




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