diff --git a/engine/common/cmd.c b/engine/common/cmd.c
index 1172ab41..37bc21ff 100644
--- a/engine/common/cmd.c
+++ b/engine/common/cmd.c
@@ -1304,7 +1304,6 @@ static void Cmd_UnprivilegedExec_f( void )
 			"scout.cfg", "sniper.cfg", "soldier.cfg", "spy.cfg",
 		};
 		char mapcfg[MAX_VA_STRING];
-		qboolean allow = false;
 
 		Q_snprintf( mapcfg, sizeof( mapcfg ), "%s.cfg", clgame.mapname );
 
diff --git a/engine/common/imagelib/img_dds.c b/engine/common/imagelib/img_dds.c
index 3d4ba7ae..1e6e714d 100644
--- a/engine/common/imagelib/img_dds.c
+++ b/engine/common/imagelib/img_dds.c
@@ -95,7 +95,7 @@ static qboolean Image_CheckDXT3Alpha( dds_t *hdr, byte *fin )
 
 static qboolean Image_CheckDXT5Alpha( dds_t *hdr, byte *fin )
 {
-	uint	bits, bitmask;
+	uint	bits;
 	byte	*alphamask;
 	int	x, y, i, j;
 
@@ -108,8 +108,6 @@ static qboolean Image_CheckDXT5Alpha( dds_t *hdr, byte *fin )
 
 			alphamask = fin + 2;
 			fin += 8;
-
-			bitmask = ((uint *)fin)[1];
 			fin += 8;
 
 			// last three bytes
@@ -278,9 +276,6 @@ static size_t Image_DXTCalcMipmapSize( dds_t *hdr )
 static uint Image_DXTCalcSize( const char *name, dds_t *hdr, size_t filesize )
 {
 	size_t buffsize = 0;
-	int w = image.width;
-	int h = image.height;
-	int d = image.depth;
 
 	if( hdr->dsCaps.dwCaps2 & DDS_CUBEMAP )
 	{
diff --git a/engine/common/infostring.c b/engine/common/infostring.c
index 4d03f357..4882a7e2 100644
--- a/engine/common/infostring.c
+++ b/engine/common/infostring.c
@@ -364,7 +364,7 @@ static char *Info_FindLargestKey( char *s )
 	char	value[MAX_KV_SIZE];
 	static	char largest_key[128];
 	int	largest_size = 0;
-	int	l, count;
+	int	count;
 	char	*o;
 
 	*largest_key = 0;
@@ -384,7 +384,6 @@ static char *Info_FindLargestKey( char *s )
 			count++;
 		}
 
-		l = o - key;
 		*o = 0;
 		size = Q_strlen( key );
 
diff --git a/engine/common/lib_common.c b/engine/common/lib_common.c
index 073d0d4a..6e6fc4a0 100644
--- a/engine/common/lib_common.c
+++ b/engine/common/lib_common.c
@@ -40,18 +40,15 @@ void COM_PushLibraryError( const char *error )
 
 void *COM_FunctionFromName_SR( void *hInstance, const char *pName )
 {
-	char **funcs = NULL;
-	size_t numfuncs, i;
-	void *f = NULL;
-	const char *func = NULL;
-
 #ifdef XASH_ALLOW_SAVERESTORE_OFFSETS
 	if( !memcmp( pName, "ofs:", 4 ))
 		return (byte*)svgame.dllFuncs.pfnGameInit + Q_atoi( pName + 4 );
 #endif
 
 #if XASH_POSIX
-	funcs = COM_ConvertToLocalPlatform( MANGLE_ITANIUM, pName, &numfuncs );
+	size_t numfuncs, i;
+	void *f = NULL;
+	char **funcs = COM_ConvertToLocalPlatform( MANGLE_ITANIUM, pName, &numfuncs );
 
 	if( funcs )
 	{
@@ -69,7 +66,7 @@ void *COM_FunctionFromName_SR( void *hInstance, const char *pName )
 	// TODO: COM_ConvertToLocalPlatform doesn't support MSVC yet
 	// also custom loader strips always MSVC mangling, so Win32
 	// platforms already use platform-neutral names
-	func = COM_GetPlatformNeutralName( pName );
+	const char *func = COM_GetPlatformNeutralName( pName );
 
 	if( func )
 		return COM_FunctionFromName( hInstance, func );
diff --git a/engine/common/mod_studio.c b/engine/common/mod_studio.c
index e848ee09..e3f4269d 100644
--- a/engine/common/mod_studio.c
+++ b/engine/common/mod_studio.c
@@ -862,7 +862,6 @@ static void Mod_StudioComputeBounds( void *buffer, vec3_t mins, vec3_t maxs, qbo
 	studiohdr_t	*pstudiohdr;
 	mstudiobodyparts_t	*pbodypart;
 	mstudiomodel_t	*m_pSubModel;
-	mstudioseqgroup_t	*pseqgroup;
 	mstudioseqdesc_t	*pseqdesc;
 	mstudiobone_t	*pbones;
 	mstudioanim_t	*panim;
@@ -902,7 +901,6 @@ static void Mod_StudioComputeBounds( void *buffer, vec3_t mins, vec3_t maxs, qbo
 	for( i = 0; i < numseq; i++ )
 	{
 		pseqdesc = (mstudioseqdesc_t *)((byte *)pstudiohdr + pstudiohdr->seqindex) + i;
-		pseqgroup = (mstudioseqgroup_t *)((byte *)pstudiohdr + pstudiohdr->seqgroupindex) + pseqdesc->seqgroup;
 
 		if( pseqdesc->seqgroup == 0 )
 			panim = (mstudioanim_t *)((byte *)pstudiohdr + pseqdesc->animindex);
diff --git a/engine/common/net_chan.c b/engine/common/net_chan.c
index fcff5bdb..248d8acd 100644
--- a/engine/common/net_chan.c
+++ b/engine/common/net_chan.c
@@ -1809,7 +1809,7 @@ qboolean Netchan_Process( netchan_t *chan, sizebuf_t *msg )
 	int	frag_offset[MAX_STREAMS] = { 0, 0 };
 	int	frag_length[MAX_STREAMS] = { 0, 0 };
 	qboolean	message_contains_fragments;
-	int	i, qport, statId;
+	int	i, statId;
 
 	// get sequence numbers
 	MSG_Clear( msg );
@@ -1821,7 +1821,7 @@ qboolean Netchan_Process( netchan_t *chan, sizebuf_t *msg )
 
 	// read the qport if we are a server
 	if( chan->sock == NS_SERVER )
-		qport = MSG_ReadShort( msg );
+		MSG_ReadShort( msg );
 
 	reliable_message = sequence >> 31;
 	reliable_ack = sequence_ack >> 31;
@@ -1925,7 +1925,7 @@ qboolean Netchan_Process( netchan_t *chan, sizebuf_t *msg )
 	{
 		for( i = 0; i < MAX_STREAMS; i++ )
 		{
-			int	j, inbufferid;
+			int	j;
 			int	intotalbuffers;
 			int	oldpos, curbit;
 			int	numbitstoremove;
@@ -1934,7 +1934,6 @@ qboolean Netchan_Process( netchan_t *chan, sizebuf_t *msg )
 			if( !frag_message[i] )
 				continue;
 
-			inbufferid = FRAG_GETID( fragid[i] );
 			intotalbuffers = FRAG_GETCOUNT( fragid[i] );
 
 			if( fragid[i] != 0 )
diff --git a/engine/common/sounds.c b/engine/common/sounds.c
index 9f6a5925..a9532ce9 100644
--- a/engine/common/sounds.c
+++ b/engine/common/sounds.c
@@ -91,7 +91,14 @@ const char *SoundList_Get( enum soundlst_group_e group, int i )
 	switch( lst->type )
 	{
 	case SoundList_Range:
+#if __GNUC__ || __clang__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+#endif
 		Q_snprintf( temp, sizeof( temp ), lst->snd, lst->min + i );
+#if __GNUC__ || __clang__
+#pragma GCC diagnostic pop
+#endif
 		return temp;
 	case SoundList_List:
 		return &lst->snd[i * lst->min];