[conntrack-tools PATCH 5/6] Define _GNU_SOURCE to get members of tcphdr&ucphdr

[conntrack-tools PATCH 5/6] Define _GNU_SOURCE to get members of tcphdr&ucphdr

[Felix Janda]

The source uses linux names for members of tcphdr. For example
"source" instead of "th_sport", ... musl libc's headers need
_GNU_SOURCE defined in order to expose these.

Signed-off-by: Felix Janda <felix.janda@posteo.de>
---
 src/cthelper.c     | 1 +
 src/helpers/ftp.c  | 1 +
 src/helpers/sane.c | 1 +
 src/helpers/tns.c  | 1 +
 4 files changed, 4 insertions(+)

diff --git a/src/cthelper.c b/src/cthelper.c
index fec40fb..bd8b8b7 100644
--- a/src/cthelper.c
+++ b/src/cthelper.c
@@ -31,6 +31,7 @@
 #include <netinet/in.h>
 #include <netinet/ip.h>
 #include <netinet/ip6.h>
+#define _GNU_SOURCE
 #include <netinet/tcp.h>
 #include <netinet/udp.h>
 #include <net/ethernet.h>
diff --git a/src/helpers/ftp.c b/src/helpers/ftp.c
index e7fe7f7..24ee877 100644
--- a/src/helpers/ftp.c
+++ b/src/helpers/ftp.c
@@ -25,6 +25,7 @@
 #include <ctype.h>	/* for isdigit */
 #include <errno.h>
 
+#define _GNU_SOURCE
 #include <netinet/tcp.h>
 
 #include <libmnl/libmnl.h>
diff --git a/src/helpers/sane.c b/src/helpers/sane.c
index 79ca948..c30f4ba 100644
--- a/src/helpers/sane.c
+++ b/src/helpers/sane.c
@@ -30,6 +30,7 @@
 #include "log.h"
 #include <errno.h>
 #include <netinet/ip.h>
+#define _GNU_SOURCE
 #include <netinet/tcp.h>
 #include <libmnl/libmnl.h>
 #include <libnetfilter_conntrack/libnetfilter_conntrack.h>
diff --git a/src/helpers/tns.c b/src/helpers/tns.c
index 5833fea..2b4fed4 100644
--- a/src/helpers/tns.c
+++ b/src/helpers/tns.c
@@ -18,6 +18,7 @@
 #include <ctype.h>	/* for isdigit */
 #include <errno.h>
 
+#define _GNU_SOURCE
 #include <netinet/tcp.h>
 
 #include <libmnl/libmnl.h>
-- 
2.3.6