Changes to the build system:

- BGFX library is set in windows.mak and sdl.mak now. This ensures the
library is only build when needed. 
  This is necessary to be able to build MAME on systems without opengl
support.
  
Support was added for an optional BIN location for executables. The
default is still the root folder. Setting BIN=bin e.g. will put
executables in bin.

makefile

@@ -369,7 +369,6 @@ RM = @rm -f
 OBJDUMP = @objdump
 PYTHON = @python
 
-
 #-------------------------------------------------
 # form the name of the executable
 #-------------------------------------------------
@@ -415,7 +414,7 @@ NAME = $(TARGET)$(SUBTARGET)
 endif
 
 # fullname is prefix+name+suffix+suffix64+suffixdebug
-FULLNAME ?= $(PREFIX)$(PREFIXSDL)$(NAME)$(SUFFIX)$(SUFFIX64)$(SUFFIXDEBUG)$(SUFFIXPROFILE)
+FULLNAME ?= $(BIN)$(PREFIX)$(PREFIXSDL)$(NAME)$(SUFFIX)$(SUFFIX64)$(SUFFIXDEBUG)$(SUFFIXPROFILE)
 
 # add an EXE suffix to get the final emulator name
 EMULATOR = $(FULLNAME)$(EXE)
@@ -708,7 +707,7 @@ endif
 # this variable
 #-------------------------------------------------
 
-OBJDIRS = $(OBJ) $(OBJ)/$(TARGET)/$(SUBTARGET)
+OBJDIRS += $(OBJ) $(OBJ)/$(TARGET)/$(SUBTARGET)
 
 
 #-------------------------------------------------
@@ -797,8 +796,8 @@ LIBS += -lsqlite3
 SQLITE3_LIB =
 endif
 
-# add BGFX library
-BGFX_LIB = $(OBJ)/libbgfx.a
+# add BGFX library - this is one in sdl.mak / windows.mak
+# BGFX_LIB = $(OBJ)/libbgfx.a
 
 # add PortMidi MIDI library
 ifeq ($(BUILD_MIDILIB),1)

src/osd/sdl/sdl.mak

@@ -754,7 +754,6 @@ OSDOBJS += \
 	$(OSDOBJ)/modules/debugger/debugwin.o \
 	$(OSDOBJ)/modules/debugger/debugqt.o \
 
-
 #-------------------------------------------------
 # BGFX
 #-------------------------------------------------
@@ -764,6 +763,7 @@ DEFS += -DUSE_BGFX
 OSDOBJS += $(SDLOBJ)/drawbgfx.o 
 INCPATH += -I$(3RDPARTY)/bgfx/include -I$(3RDPARTY)/bx/include
 USE_DISPATCH_GL = 0
+BGFX_LIB = $(OBJ)/libbgfx.a
 endif
 
 #-------------------------------------------------
@@ -790,7 +790,6 @@ INCPATH += -I$(MESA_INSTALL_ROOT)/include
 endif
 endif
 
-
 #-------------------------------------------------
 # X11
 #-------------------------------------------------

src/osd/windows/windows.mak

@@ -417,6 +417,7 @@ OSDOBJS += \
 # add a stub resource file
 RESFILE = $(WINOBJ)/mame.res
 
+BGFX_LIB = $(OBJ)/libbgfx.a
 INCPATH += -I$(3RDPARTY)/bgfx/include -I$(3RDPARTY)/bx/include
 
 #-------------------------------------------------
@@ -472,7 +473,7 @@ $(LIBOSD): $(OSDOBJS)
 # rule for making the ledutil sample
 #-------------------------------------------------
 
-LEDUTIL = ledutil$(EXE)
+LEDUTIL = $(BIN)ledutil$(EXE)
 TOOLS += $(LEDUTIL)
 
 LEDUTILOBJS = \

src/tools/tools.mak

@@ -51,18 +51,18 @@ OBJDIRS += \
 #-------------------------------------------------
 
 TOOLS += \
-	romcmp$(EXE) \
-	chdman$(EXE) \
-	jedutil$(EXE) \
-	unidasm$(EXE) \
-	ldresample$(EXE) \
-	ldverify$(EXE) \
-	regrep$(EXE) \
-	srcclean$(EXE) \
-	src2html$(EXE) \
-	split$(EXE) \
-	pngcmp$(EXE) \
-	nltool$(EXE) \
+	$(BIN)romcmp$(EXE) \
+	$(BIN)chdman$(EXE) \
+	$(BIN)jedutil$(EXE) \
+	$(BIN)unidasm$(EXE) \
+	$(BIN)ldresample$(EXE) \
+	$(BIN)ldverify$(EXE) \
+	$(BIN)regrep$(EXE) \
+	$(BIN)srcclean$(EXE) \
+	$(BIN)src2html$(EXE) \
+	$(BIN)split$(EXE) \
+	$(BIN)pngcmp$(EXE) \
+	$(BIN)nltool$(EXE) \
 
 
 #-------------------------------------------------
@@ -72,7 +72,7 @@ TOOLS += \
 ROMCMPOBJS = \
 	$(TOOLSOBJ)/romcmp.o \
 
-romcmp$(EXE): $(ROMCMPOBJS) $(LIBUTIL) $(ZLIB) $(EXPAT) $(LIBOCORE)
+$(BIN)romcmp$(EXE): $(ROMCMPOBJS) $(LIBUTIL) $(ZLIB) $(EXPAT) $(LIBOCORE)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) -o $@
 
@@ -85,7 +85,7 @@ romcmp$(EXE): $(ROMCMPOBJS) $(LIBUTIL) $(ZLIB) $(EXPAT) $(LIBOCORE)
 CHDMANOBJS = \
 	$(TOOLSOBJ)/chdman.o \
 
-chdman$(EXE): $(CHDMANOBJS) $(LIBUTIL) $(ZLIB) $(EXPAT) $(FLAC_LIB) $(7Z_LIB) $(LIBOCORE)
+$(BIN)chdman$(EXE): $(CHDMANOBJS) $(LIBUTIL) $(ZLIB) $(EXPAT) $(FLAC_LIB) $(7Z_LIB) $(LIBOCORE)
 	$(CC) $(CDEFS) $(CFLAGS) -c $(SRC)/version.c -o $(VERSIONOBJ)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $(VERSIONOBJ) $^ $(BASELIBS) $(FLAC_LIB) -o $@
@@ -99,7 +99,7 @@ chdman$(EXE): $(CHDMANOBJS) $(LIBUTIL) $(ZLIB) $(EXPAT) $(FLAC_LIB) $(7Z_LIB) $(
 JEDUTILOBJS = \
 	$(TOOLSOBJ)/jedutil.o \
 
-jedutil$(EXE): $(JEDUTILOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT)
+$(BIN)jedutil$(EXE): $(JEDUTILOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) -o $@
 
@@ -113,7 +113,7 @@ UNIDASMOBJS = \
 	$(TOOLSOBJ)/unidasm.o \
 
 # TODO: Visual Studio wants $(FLAC_LIB) and $(7Z_LIB) during linking...
-unidasm$(EXE): $(UNIDASMOBJS) $(LIBDASM) $(LIBEMU) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT) $(FLAC_LIB) $(7Z_LIB)
+$(BIN)unidasm$(EXE): $(UNIDASMOBJS) $(LIBDASM) $(LIBEMU) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT) $(FLAC_LIB) $(7Z_LIB)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) -o $@
 
@@ -126,7 +126,7 @@ unidasm$(EXE): $(UNIDASMOBJS) $(LIBDASM) $(LIBEMU) $(LIBUTIL) $(LIBOCORE) $(ZLIB
 LDRESAMPLEOBJS = \
 	$(TOOLSOBJ)/ldresample.o \
 
-ldresample$(EXE): $(LDRESAMPLEOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(FLAC_LIB) $(7Z_LIB) $(EXPAT)
+$(BIN)ldresample$(EXE): $(LDRESAMPLEOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(FLAC_LIB) $(7Z_LIB) $(EXPAT)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) $(FLAC_LIB) -o $@
 
@@ -139,7 +139,7 @@ ldresample$(EXE): $(LDRESAMPLEOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(FLAC_LIB) $
 LDVERIFYOBJS = \
 	$(TOOLSOBJ)/ldverify.o \
 
-ldverify$(EXE): $(LDVERIFYOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(FLAC_LIB) $(7Z_LIB) $(EXPAT)
+$(BIN)ldverify$(EXE): $(LDVERIFYOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(FLAC_LIB) $(7Z_LIB) $(EXPAT)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) $(FLAC_LIB) -o $@
 
@@ -152,7 +152,7 @@ ldverify$(EXE): $(LDVERIFYOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(FLAC_LIB) $(7Z_
 REGREPOBJS = \
 	$(TOOLSOBJ)/regrep.o \
 
-regrep$(EXE): $(REGREPOBJS) $(LIBUTIL) $(FLAC_LIB) $(LIBOCORE) $(ZLIB) $(EXPAT)
+$(BIN)regrep$(EXE): $(REGREPOBJS) $(LIBUTIL) $(FLAC_LIB) $(LIBOCORE) $(ZLIB) $(EXPAT)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) -o $@
 
@@ -165,7 +165,7 @@ regrep$(EXE): $(REGREPOBJS) $(LIBUTIL) $(FLAC_LIB) $(LIBOCORE) $(ZLIB) $(EXPAT)
 SRCCLEANOBJS = \
 	$(TOOLSOBJ)/srcclean.o \
 
-srcclean$(EXE): $(SRCCLEANOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT)
+$(BIN)srcclean$(EXE): $(SRCCLEANOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) -o $@
 
@@ -178,7 +178,7 @@ srcclean$(EXE): $(SRCCLEANOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT)
 SRC2HTMLOBJS = \
 	$(TOOLSOBJ)/src2html.o \
 
-src2html$(EXE): $(SRC2HTMLOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT)
+$(BIN)src2html$(EXE): $(SRC2HTMLOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) -o $@
 
@@ -192,7 +192,7 @@ SPLITOBJS = \
 	$(TOOLSOBJ)/split.o \
 
 # TODO: Visual Studio wants $(FLAC_LIB) and $(7Z_LIB) during linking...
-split$(EXE): $(SPLITOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT) $(FLAC_LIB) $(7Z_LIB)
+$(BIN)split$(EXE): $(SPLITOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT) $(FLAC_LIB) $(7Z_LIB)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) -o $@
 
@@ -205,7 +205,7 @@ split$(EXE): $(SPLITOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT) $(FLAC_LIB) $(
 PNGCMPOBJS = \
 	$(TOOLSOBJ)/pngcmp.o \
 
-pngcmp$(EXE): $(PNGCMPOBJS) $(LIBUTIL) $(FLAC_LIB) $(LIBOCORE) $(ZLIB)
+$(BIN)pngcmp$(EXE): $(PNGCMPOBJS) $(LIBUTIL) $(FLAC_LIB) $(LIBOCORE) $(ZLIB)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) -o $@
 
@@ -217,7 +217,7 @@ NLTOOLOBJS = \
 	$(TOOLSOBJ)/nltool.o \
 	$(NETLISTOBJS) \
 
-nltool$(EXE): $(NLTOOLOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT)
+$(BIN)nltool$(EXE): $(NLTOOLOBJS) $(LIBUTIL) $(LIBOCORE) $(ZLIB) $(EXPAT)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $^ $(BASELIBS) -o $@