diff --git a/Source/Core/Common/Src/ArmEmitter.cpp b/Source/Core/Common/Src/ArmEmitter.cpp
index 03f29da8bc..fd62b0b2c9 100644
--- a/Source/Core/Common/Src/ArmEmitter.cpp
+++ b/Source/Core/Common/Src/ArmEmitter.cpp
@@ -86,6 +86,7 @@ bool TryMakeOperand2_AllowNegation(s32 imm, Operand2 &op2, bool *negated)
 Operand2 AssumeMakeOperand2(u32 imm) {
 	Operand2 op2;
 	bool result = TryMakeOperand2(imm, op2);
+	(void) result;
 	_dbg_assert_msg_(DYNA_REC, result, "Could not make assumed Operand2.");
 	return op2;
 }
@@ -958,7 +959,7 @@ extern const VFPEnc VFPOps[16][2] = {
 	{{  -1,   -1}, {0x3B, 0x30}}, // 14: VABSi
 	};
 
-extern const char *VFPOpNames[16] = {
+const char *VFPOpNames[16] = {
 	"VMLA",
 	"VNMLA",
 	"VMLS",
@@ -1189,6 +1190,7 @@ void ARMXEmitter::VMOV(ARMReg Dest, ARMReg Src)
 	}
 	// Moving NEON registers
 	int SrcSize = Src < D0 ? 1 : Src < Q0 ? 2 : 4;
+	(void) SrcSize;
 	int DestSize = Dest < D0 ? 1 : Dest < Q0 ? 2 : 4;
 	bool Single = DestSize == 1;
 	bool Quad = DestSize == 4;
diff --git a/Source/Core/Common/Src/StringUtil.cpp b/Source/Core/Common/Src/StringUtil.cpp
index 5d8a26446d..189dfe98bc 100644
--- a/Source/Core/Common/Src/StringUtil.cpp
+++ b/Source/Core/Common/Src/StringUtil.cpp
@@ -270,7 +270,7 @@ std::string ReplaceAll(std::string result, const std::string& src, const std::st
 	while(1)
 	{
 		size_t pos = result.find(src);
-		if (pos == -1) break;
+		if (pos == std::string::npos) break;
 		result.replace(pos, src.size(), dest);
 	}
 	return result;
diff --git a/Source/Core/Core/Src/ec_wii.cpp b/Source/Core/Core/Src/ec_wii.cpp
index 7fc000d1c8..5a68cc6fb5 100644
--- a/Source/Core/Core/Src/ec_wii.cpp
+++ b/Source/Core/Core/Src/ec_wii.cpp
@@ -153,7 +153,7 @@ EcWii::EcWii()
 			}
 			else
 			{
-				ERROR_LOG(WII_IPC_ES, "Failed to read keys.bin, check it is the correct size of %08lX bytes.", sizeof(BootMiiKeysBin));
+				ERROR_LOG(WII_IPC_ES, "Failed to read keys.bin, check it is the correct size of %08X bytes.", (unsigned int) sizeof(BootMiiKeysBin));
 			}
 		}
 		else
diff --git a/Source/Core/DolphinWX/Src/MemoryCards/WiiSaveCrypted.cpp b/Source/Core/DolphinWX/Src/MemoryCards/WiiSaveCrypted.cpp
index 31985f374f..091804e786 100644
--- a/Source/Core/DolphinWX/Src/MemoryCards/WiiSaveCrypted.cpp
+++ b/Source/Core/DolphinWX/Src/MemoryCards/WiiSaveCrypted.cpp
@@ -62,7 +62,7 @@ void CWiiSaveCrypted::ExportAllSaves()
 			}
 		}
 	}	
-	SuccessAlertT("Found  %llx save files", titles.size());
+	SuccessAlertT("Found %x save files", (unsigned int) titles.size());
 	for (u32 i = 0; i < titles.size(); ++i)
 	{
 		CWiiSaveCrypted* exportSave = new CWiiSaveCrypted("", titles[i]);
diff --git a/Source/Core/DolphinWX/Src/MemoryCards/WiiSaveCrypted.h b/Source/Core/DolphinWX/Src/MemoryCards/WiiSaveCrypted.h
index 0f3c1d1716..29a3e1f530 100644
--- a/Source/Core/DolphinWX/Src/MemoryCards/WiiSaveCrypted.h
+++ b/Source/Core/DolphinWX/Src/MemoryCards/WiiSaveCrypted.h
@@ -42,8 +42,7 @@ private:
 
 	std::string encryptedSavePath;
 
-	std::string BannerFilePath,
-				WiiTitlePath;
+	std::string WiiTitlePath;
 
 	u8  IV[0x10];
 	
diff --git a/Source/Core/VideoCommon/Src/x64TextureDecoder.cpp b/Source/Core/VideoCommon/Src/x64TextureDecoder.cpp
index e12b62d5a7..4c26509878 100644
--- a/Source/Core/VideoCommon/Src/x64TextureDecoder.cpp
+++ b/Source/Core/VideoCommon/Src/x64TextureDecoder.cpp
@@ -28,6 +28,12 @@
 #include <tmmintrin.h>
 #endif
 
+// This avoids a harmless warning from a system header in Clang;
+// see http://llvm.org/bugs/show_bug.cgi?id=16093
+#ifdef __clang__
+#pragma clang diagnostic ignored "-Wshadow"
+#endif
+
 bool TexFmt_Overlay_Enable=false;
 bool TexFmt_Overlay_Center=false;
 
diff --git a/Source/Plugins/Plugin_VideoOGL/Src/GLUtil.h b/Source/Plugins/Plugin_VideoOGL/Src/GLUtil.h
index 0e02fcb326..c94776ef7f 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/GLUtil.h
+++ b/Source/Plugins/Plugin_VideoOGL/Src/GLUtil.h
@@ -30,8 +30,8 @@
 #define GL_READ_WRITE                     0x88BA
 #define GL_SRC1_ALPHA 0
 #define GL_BGRA GL_RGBA
-#define glDrawElementsBaseVertex
-#define glDrawRangeElementsBaseVertex
+#define glDrawElementsBaseVertex(...)
+#define glDrawRangeElementsBaseVertex(...)
 #endif
 #else
 #define TEX2D	GL_TEXTURE_RECTANGLE_ARB