fix GCC 5.1.0 compile (not tested the program - just fixed the compile)

makefile

@@ -79,6 +79,9 @@ mingw452: FORCE
 	
 mingw471: FORCE
 	@$(MAKE) -s -f makefile.mingw GCC471=1
+	
+mingw510: FORCE
+	@$(MAKE) -s -f makefile.mingw GCC510=1
 
 mamemingw: FORCE
 	@$(MAKE) -s -f makefile.mamemingw 

makefile.mingw

@@ -84,6 +84,9 @@ endif
 ifdef GCC471
 objdir	= obj/47/$(COMPILENAME)/
 endif
+ifdef GCC510
+objdir	= obj/51/$(COMPILENAME)/
+endif
 
 srcdir	= src/
 
@@ -99,6 +102,9 @@ endif
 ifdef GCC471
 incdir	= $(foreach dir,$(alldir),-I$(srcdir)$(dir)) -I$(objdir)dep/generated -I$(srcdir)dep/mingw/include -I$(srcdir)dep/mingw/include/directx9 -I$(srcdir)dep/mingw/include/xaudio2
 endif
+ifdef GCC510
+incdir	= $(foreach dir,$(alldir),-I$(srcdir)$(dir)) -I$(objdir)dep/generated -I$(srcdir)dep/mingw/include -I$(srcdir)dep/mingw/include/directx9 -I$(srcdir)dep/mingw/include/xaudio2
+endif
 
 ifdef UNICODE
 # lib	= -lunicows
@@ -229,7 +235,39 @@ CXXFLAGS = -pipe \
 	   -Wuninitialized -Wpointer-arith -Wno-inline -Wno-address  -Wno-unused-value \
 	   -Wno-unused-but-set-variable -Wno-sequence-point -Wno-narrowing -Wno-extra \
 	   $(DEF) $(incdir)
+	   
+ifdef BUILD_X64_EXE
+	CFLAGS += -m64
+	CXXFLAGS += -m64
+	LDFLAGS += -m64
+else
+	CFLAGS += -m32
+	CXXFLAGS += -m32
+	LDFLAGS += -m32
+endif
+endif
 
+ifdef GCC510
+CFLAGS	 = -pipe \
+	   -std=gnu99 -O1 \
+	   -mwindows \
+	   -fforce-addr -finline-limit=1200 -fthread-jumps \
+	   -fexpensive-optimizations \
+	   -Wall -Wno-long-long -Wno-sign-compare -Wno-uninitialized -Wno-unused \
+	   -Wno-sequence-point -Wno-pedantic \
+	   $(DEF) $(incdir)
+
+CXXFLAGS = -pipe \
+	   -std=gnu++11 -O1 \
+	   -mwindows \
+	   -fforce-addr -finline-limit=1200 -fthread-jumps \
+	   -fexpensive-optimizations -fcheck-new \
+	   -Wall -W -pedantic -Wshadow -Wno-long-long -Wno-write-strings \
+	   -Wunknown-pragmas -Wundef -Wno-conversion -Wno-missing-braces -Wno-multichar \
+	   -Wuninitialized -Wpointer-arith -Wno-inline -Wno-address  -Wno-unused-value \
+	   -Wno-unused-but-set-variable -Wno-sequence-point -Wno-narrowing -Wno-extra \
+	   -Wno-pedantic \
+	   $(DEF) $(incdir)
 ifdef BUILD_X64_EXE
 	CFLAGS += -m64
 	CXXFLAGS += -m64
@@ -372,6 +410,9 @@ endif
 ifdef GCC471
 	@$(MAKE) -f makefile.mingw -s GCC471=1
 endif
+ifdef GCC510
+	@$(MAKE) -f makefile.mingw -s GCC510=1
+endif
 
 else
 
@@ -385,6 +426,9 @@ endif
 ifdef GCC471
 	@$(MAKE) -f makefile.mingw -s GCC471=1
 endif
+ifdef GCC510
+	@$(MAKE) -f makefile.mingw -s GCC510=1
+endif
 
 endif
 else
@@ -640,6 +684,13 @@ else
 	@windres -F pe-i386 $(DEF) $< -o $(subst $(srcdir),$(objdir),$(<D))/$(@F) $(foreach dir,$(alldir),--include-dir $(srcdir)$(dir))
 endif
 endif
+ifdef GCC510
+ifdef BUILD_X64_EXE
+	@windres -F pe-x86-64 $(DEF) $< -o $(subst $(srcdir),$(objdir),$(<D))/$(@F) $(foreach dir,$(alldir),--include-dir $(srcdir)$(dir))
+else
+	@windres -F pe-i386 $(DEF) $< -o $(subst $(srcdir),$(objdir),$(<D))/$(@F) $(foreach dir,$(alldir),--include-dir $(srcdir)$(dir))
+endif
+endif
 
 #
 #	Generic rules for C/C++ files

src/burn/burn.h

@@ -332,7 +332,7 @@ void IpsApplyPatches(UINT8* base, char* rom_name);
 
 #define HARDWARE_PUBLIC_MASK							(0xFFFF0000)
 
-#define HARDWARE_PREFIX_CARTRIDGE						(0x80000000)
+#define HARDWARE_PREFIX_CARTRIDGE						((INT32)0x80000000)
 
 #define HARDWARE_PREFIX_MISC_PRE90S						(0x00000000)
 #define HARDWARE_PREFIX_CAPCOM							(0x01000000)

src/intf/video/vid_softfx.cpp

@@ -77,7 +77,7 @@ extern "C" {
 }
 #endif
 
-#define FXF_MMX		(1 << 31)
+#define FXF_MMX		(unsigned int)(1 << 31)
 
 static struct { TCHAR* pszName; int nZoom; unsigned int nFlags; } SoftFXInfo[] = {
 	{ _T("Plain Software Scale"),			2, 0	   },