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authorDiego Biurrun <diego@biurrun.de>2011-05-11 17:52:51 +0200
committerDiego Biurrun <diego@biurrun.de>2011-05-12 11:41:59 +0200
commit046f081b46c8479820409cf8f530b988221bd15b (patch)
tree7926931a77448c75214f2af2498bba23524c8e34 /libavformat/udp.c
parent45faf7fcd335b91e41b0e3ba4e397a9640d8c694 (diff)
configure: Do not unconditionally add -D_POSIX_C_SOURCE to CPPFLAGS.
Adding _POSIX_C_SOURCE to CPPFLAGS globally produces all sorts of problems since it causes certain system functions to be hidden on some (BSD) systems. The solution is to only add the flag on systems that really require it, i.e. glibc-based ones. This change makes BSD systems compile out-of-the-box without the need for adding specific flags manually. It also allows dropping a number of flags set manually on a file-per-file basis, but were only present to work around breakage introduced by the presence of _POSIX_C_SOURCE. Also add _XOPEN_SOURCE to CPPFLAGS for glibc systems. We use XSI extensions in several places already, so it is preferable to define it globally instead of littering source files with individual #defines only needed for glibc.
Diffstat (limited to 'libavformat/udp.c')
-rw-r--r--libavformat/udp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/udp.c b/libavformat/udp.c
index 62c1c7c107..d6522bf0be 100644
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -25,7 +25,7 @@
*/
#define _BSD_SOURCE /* Needed for using struct ip_mreq with recent glibc */
-#define _DARWIN_C_SOURCE /* Needed for using IP_MULTICAST_TTL on OS X */
+
#include "avformat.h"
#include "avio_internal.h"
#include "libavutil/parseutils.h"