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Fix musl build
Defining _GNU_SOURCE is required to get proper member names in `struct udphdr`
when building against musl. Build error:
util.c: In function 'RawFillHeaders':
util.c:481:9: error: 'struct udphdr' has no member named 'source'
udph->source = htons(portsrc);
^
util.c:482:9: error: 'struct udphdr' has no member named 'dest'
udph->dest = htons(portdst);
^
util.c:483:9: error: 'struct udphdr' has no member named 'len'
udph->len = htons(sizeof(struct udphdr) + len);
^
util.c:484:9: error: 'struct udphdr' has no member named 'check'
udph->check = 0;
Including <sys/types.h> in needed for mode_t, otherwise musl build fails:
util.h:91:1: error: unknown type name 'mode_t'
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Sent upstream: https://mailman.videolan.org/pipermail/multicat-devel/2016-March/000126.html
diff -purN multicat-2.1.orig/util.c multicat-2.1/util.c
--- multicat-2.1.orig/util.c 2015-07-17 18:03:17.000000000 +0200
+++ multicat-2.1/util.c 2016-03-19 22:21:01.110178772 +0100
@@ -21,6 +21,8 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
+#define _GNU_SOURCE
+
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
diff -purN multicat-2.1.orig/util.h multicat-2.1/util.h
--- multicat-2.1.orig/util.h 2015-07-15 22:47:39.000000000 +0200
+++ multicat-2.1/util.h 2016-03-19 22:21:58.649834990 +0100
@@ -21,6 +21,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
+#include <sys/types.h>
#include <netinet/udp.h>
#include <netinet/ip.h>
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