[PATCH] Don't define _XOPEN_SOURCE to unbreak compilation on FreeBSD

[Rocco Rutte <pdmef@gmx.net>]

FreeBSD 6 requires the __BSD_VISIBLE flag for fchmod(), IPPROTO_IPV6 and
more which is only properly set by <sys/cdefs.h> if _POSIX_C_SOURCE
isn't present. However, _POSIX_C_SOURCE is defined if _XOPEN_SOURCE is
defined and >=500.

As a solution, simply don't define _XOPEN_SOURCE for FreeBSD and continue
with its defaults.

Signed-off-by: Rocco Rutte <pdmef@gmx.net>
---
 git-compat-util.h |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/git-compat-util.h b/git-compat-util.h
index bc296b3..27d3b89 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -11,7 +11,12 @@
 
 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
 
-#define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
+#if !defined(__FreeBSD__)
+#define _XOPEN_SOURCE 600        /* glibc2 and AIX 5.3L need 500,
+                                  * OpenBSD needs 600 for S_ISLNK(),
+                                  * FreeBSD 6 doesn't like it
+                                  */
+#endif
 #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
 #define _GNU_SOURCE
 #define _BSD_SOURCE
-- 
1.4.4.2.g9474f