Set C standard to C99

Also include strings.h where strcasecmp() is used

src/Makefile

@@ -10,7 +10,7 @@ HEAD_COMMIT = `git rev-parse --short HEAD`
 
 LIBPATH = -L.
 LDFLAGS +=  -lz `sh osflags $(TARGETOS) link` $(LIBPATH)
-CFLAGS += -c -g -Wall -D$(OS) -pedantic `sh osflags $(TARGETOS) cflags` -DGITREVISION=\"$(HEAD_COMMIT)\"
+CFLAGS += -std=c99 -c -g -Wall -D$(OS) -pedantic `sh osflags $(TARGETOS) cflags` -DGITREVISION=\"$(HEAD_COMMIT)\"
 
 all: stateos $(CLIENT) $(SERVER)
 

src/client.c

@@ -19,6 +19,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 #include <signal.h>
 #include <unistd.h>
 #include <sys/param.h>

src/dns.c

@@ -20,6 +20,7 @@
 #include <stdlib.h>
 #include <stdint.h>
 #include <string.h>
+#include <strings.h>
 #include <ctype.h>
 
 #ifdef WINDOWS32

src/iodined.c

@@ -18,6 +18,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 #include <signal.h>
 #include <unistd.h>
 #include <sys/param.h>

src/osflags

@@ -33,7 +33,7 @@ cflags)
 			echo '-Dsocklen_t=int';
 		;;
 		Linux)
-			FLAGS="";
+			FLAGS="-D_GNU_SOURCE"
 			[ -e /usr/include/selinux/selinux.h ] && FLAGS="$FLAGS -DHAVE_SETCON";
 			[ -e /usr/include/systemd/sd-daemon.h ] && FLAGS="$FLAGS -DHAVE_SYSTEMD";
 			echo $FLAGS;