fix compilation warnings

configure.ac

@@ -4,6 +4,10 @@ AC_INIT([mediastreamer],[2.10.0])
 AC_MSG_NOTICE([$PACKAGE_NAME-$PACKAGE_VERSION		A mediastreaming library for telephony application.])
 AC_MSG_NOTICE([licensed under the terms of the General Public License (GPL)])
 
+dnl don't put anythingelse before AC_PROG_CC unless checking if macro still work for clang
+AC_PROG_CXX(["xcrun clang++" g++])
+AC_PROG_CC(["xcrun clang" gcc])
+AC_PROG_OBJC(["xcrun clang" gcc])
 AC_CANONICAL_SYSTEM
 
 dnl Source packaging numbers
@@ -52,6 +56,13 @@ AC_ARG_ENABLE(strict,
 )
 
 CFLAGS="-DORTP_INET6 $CFLAGS "
+#for clang
+
+case $CC in
+        *clang*)
+                CFLAGS="$CFLAGS -Qunused-arguments"
+        ;;
+esac
 
 dnl enable ipv6 support
 AC_ARG_ENABLE(ipv6,
@@ -78,10 +89,6 @@ AC_ARG_ENABLE(ntp-timestamp,
 	[ntptimestamp=false]
 )
 
-dnl Checks for programs.
-AC_PROG_CXX
-AC_PROG_CC
-AC_PROG_OBJC
 
 AC_CONFIG_MACRO_DIR([m4])
 LT_INIT([win32-dll shared disable-static])

src/audiofilters/msconf.c

@@ -42,7 +42,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #define CONF_MAX_PINS 128
 #endif
 
-static const float max_e=(float)32767*32767;
+
 static const float coef=(float)0.01;
 
 typedef struct Channel{

src/audiofilters/speexec.c

@@ -46,7 +46,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #define EC_DUMP_PREFIX "/dynamic/tests"
 #endif
 
-static const float smooth_factor=0.05;
 static const int framesize=64;
 static const int flow_control_interval_ms=5000;
 

src/videofilters/theora.c

@@ -181,11 +181,6 @@ static inline void payload_header_set(uint8_t *buf, uint32_t ident, uint8_t ft,
 	*((uint32_t*)buf)=htonl(tmp);
 }
 
-static inline uint32_t payload_header_get_ident(uint8_t *buf){
-	uint32_t *tmp=(uint32_t*)buf;
-	return (ntohl(*tmp)>>8) & 0xFFFFFF;
-}
-
 static inline uint32_t payload_header_get_tdt(uint8_t *buf){
 	uint32_t *tmp=(uint32_t*)buf;
 	return ((ntohl(*tmp))>>4) & 0x3;
@@ -196,11 +191,6 @@ static inline uint32_t payload_header_get_ft(uint8_t *buf){
 	return ((ntohl(*tmp))>>6) & 0x3;
 }
 
-static inline uint32_t payload_header_get_pkts(uint8_t *buf){
-	uint32_t *tmp=(uint32_t*)buf;
-	return ntohl(*tmp) & 0xf;
-}
-
 static int create_packed_conf(EncState *s){
 	ogg_packet p;
 	theora_state *tstate=&s->tstate;

src/voip/bitratedriver.c

@@ -193,7 +193,6 @@ MSBitrateDriver *ms_audio_bitrate_driver_new(MSFilter *encoder){
 }
 
 static const int min_video_bitrate=64000;
-static const float increase_ramp=1.1;
 
 typedef struct _MSAVBitrateDriver{
 	MSBitrateDriver parent;