Cleanup some warnings

Signed-off-by: Alexander Golubev <fatzer2@gmail.com>

akode/lib/wav_decoder.cpp

@@ -110,14 +110,15 @@ bool WavDecoder::openFile(File* src) {
 find_data:
     src->lseek(d->pos);
     src->read((char*)buffer, 4);
-    if (memcmp(buffer, "data", 4) != 0)
-      if (memcmp(buffer, "clm ", 4) != 0)
+    if (memcmp(buffer, "data", 4) != 0) {
+      if (memcmp(buffer, "clm ", 4) != 0) {
         goto invalid;
-      else {
+      } else {
         src->read((char*)buffer, 4);
         d->pos = d->pos+ 8 + buffer[0] + buffer[1]*256;
         goto find_data;
       }
+    }
 
     src->lseek(d->pos+8); // start of data
     d->position = 0;

akode/plugins/mpc_decoder/mppdec/streaminfo.cpp

@@ -17,7 +17,7 @@ Stringify ( unsigned int profile )            // profile is 0...15, where 7...13
 }
 
 // read information from SV8 header
-int StreamInfo::ReadHeaderSV8 ( MPC_reader* fp )
+int StreamInfo::ReadHeaderSV8 ( MPC_reader* /*fp*/ )
 {
     return 0;
 }

akode/plugins/xiph_decoder/flac113_decoder.cpp

@@ -66,12 +66,13 @@ static bool checkOggFLAC(File *src) {
     bool res = false;
     src->lseek(0);
     if (src->read(header, 34) == 34)
-        if (memcmp(header, "OggS",4) == 0 )
+        if (memcmp(header, "OggS",4) == 0 ) {
             // old FLAC 1.1.0 format
             if (memcmp(header+28, "fLaC",4) == 0) res = true;
             else
             // new FLAC 1.1.1 format
             if (memcmp(header+29, "FLAC",4) == 0) res = true;
+        }
     return res;
 }