vc compile warn

svn-id: r17637

3 files changed, 4 insertions, 4 deletions

diff --git a/common/savefile.cpp b/common/savefile.cpp
index 96c6ed07d2..02234a9a78 100644
--- a/common/savefile.cpp
+++ b/common/savefile.cpp
@@ -73,8 +73,8 @@ public:
 			::fclose(fh);
 	}
 
-	bool readingFailed() const { return ferror(fh); }
-	bool writingFailed() const { return ferror(fh); }
+	bool readingFailed() const { return ferror(fh) != 0; }
+	bool writingFailed() const { return ferror(fh) != 0; }
 	bool isOpen() const { return fh != 0; }
 
 	uint32 read(void *buf, uint32 cnt) {
diff --git a/sound/softsynth/mt32/part.cpp b/sound/softsynth/mt32/part.cpp
index 5c4c11fa27..b3d71bccca 100644
--- a/sound/softsynth/mt32/part.cpp
+++ b/sound/softsynth/mt32/part.cpp
@@ -233,7 +233,7 @@ void Part::setPatch(const PatchParam *patch) {
 	patchTemp->patch = *patch;
 }
 
-void RhythmPart::setTimbre(TimbreParam *timbre) {
+void RhythmPart::setTimbre(TimbreParam * /*timbre*/) {
 	synth->printDebug("%s: Attempted to call setTimbre() - doesn't make sense for rhythm", name);
 }
 
diff --git a/sound/softsynth/mt32/synth.cpp b/sound/softsynth/mt32/synth.cpp
index 892258b7a4..66832b0e59 100644
--- a/sound/softsynth/mt32/synth.cpp
+++ b/sound/softsynth/mt32/synth.cpp
@@ -715,7 +715,7 @@ void Synth::playSysexWithoutHeader(unsigned char device, unsigned char command,
 	}
 }
 
-void Synth::readSysex(unsigned char device, const Bit8u *sysex, Bit32u len) {
+void Synth::readSysex(unsigned char /*device*/, const Bit8u * /*sysex*/, Bit32u /*len*/) {
 }
 
 const MemoryRegion memoryRegions[8] = {