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