put optional cpu, video, sound and machine cores in one library in order to prevent linking issues on small builds, also created temp solution for subtargets for arcade,fruit and pinball machines (nw)

.gitattributes

@@ -2545,6 +2545,7 @@ src/lib/zlib/zlib.h svneol=native#text/plain
 src/lib/zlib/zutil.c svneol=native#text/plain
 src/lib/zlib/zutil.h svneol=native#text/plain
 src/mame/arcade.lst svneol=native#text/plain
+src/mame/arcade.mak svneol=native#text/plain
 src/mame/audio/8080bw.c svneol=native#text/plain
 src/mame/audio/amiga.c svneol=native#text/plain
 src/mame/audio/asteroid.c svneol=native#text/plain
@@ -3970,6 +3971,7 @@ src/mame/etc/template_device.c svneol=native#text/plain
 src/mame/etc/template_device.h svneol=native#text/plain
 src/mame/etc/template_driver.c svneol=native#text/plain
 src/mame/fruit.lst svneol=native#text/plain
+src/mame/fruit.mak svneol=native#text/plain
 src/mame/includes/1942.h svneol=native#text/plain
 src/mame/includes/1943.h svneol=native#text/plain
 src/mame/includes/20pacgal.h svneol=native#text/plain
@@ -5215,6 +5217,7 @@ src/mame/mame.c svneol=native#text/plain
 src/mame/mame.lst svneol=native#text/plain
 src/mame/mame.mak svneol=native#text/plain
 src/mame/pinball.lst svneol=native#text/plain
+src/mame/pinball.mak svneol=native#text/plain
 src/mame/tiny.lst svneol=native#text/plain
 src/mame/tiny.mak svneol=native#text/plain
 src/mame/video/1942.c svneol=native#text/plain

makefile

@@ -636,11 +636,8 @@ OBJDIRS = $(OBJ) $(OBJ)/$(TARGET)/$(SUBTARGET)
 #-------------------------------------------------
 
 LIBEMU = $(OBJ)/libemu.a
-LIBCPU = $(OBJ)/$(TARGET)/$(SUBTARGET)/libcpu.a
+LIBOPTIONAL = $(OBJ)/$(TARGET)/$(SUBTARGET)/liboptional.a
 LIBDASM = $(OBJ)/$(TARGET)/$(SUBTARGET)/libdasm.a
-LIBSOUND = $(OBJ)/$(TARGET)/$(SUBTARGET)/libsound.a
-LIBVIDEO = $(OBJ)/$(TARGET)/$(SUBTARGET)/libvideo.a
-LIBMACHINE = $(OBJ)/$(TARGET)/$(SUBTARGET)/libmachine.a
 LIBUTIL = $(OBJ)/libutil.a
 LIBOCORE = $(OBJ)/libocore.a
 LIBOSD = $(OBJ)/libosd.a
@@ -822,7 +819,7 @@ $(sort $(OBJDIRS)):
 
 ifndef EXECUTABLE_DEFINED
 
-$(EMULATOR): $(EMUINFOOBJ) $(DRIVLISTOBJ) $(DRVLIBS) $(LIBOSD) $(LIBCPU) $(LIBMACHINE) $(LIBEMU) $(LIBDASM) $(LIBSOUND) $(LIBVIDEO) $(LIBUTIL) $(EXPAT) $(SOFTFLOAT) $(JPEG_LIB) $(FLAC_LIB) $(7Z_LIB) $(FORMATS_LIB) $(LUA_LIB) $(ZLIB) $(LIBOCORE) $(MIDI_LIB) $(RESFILE)
+$(EMULATOR): $(EMUINFOOBJ) $(DRIVLISTOBJ) $(DRVLIBS) $(LIBOSD) $(LIBOPTIONAL) $(LIBEMU) $(LIBDASM) $(LIBUTIL) $(EXPAT) $(SOFTFLOAT) $(JPEG_LIB) $(FLAC_LIB) $(7Z_LIB) $(FORMATS_LIB) $(LUA_LIB) $(ZLIB) $(LIBOCORE) $(MIDI_LIB) $(RESFILE)
 	$(CC) $(CDEFS) $(CFLAGS) -c $(SRC)/version.c -o $(VERSIONOBJ)
 	@echo Linking $@...
 	$(LD) $(LDFLAGS) $(LDFLAGSEMULATOR) $(VERSIONOBJ) $^ $(LIBS) -o $@

src/emu/emu.mak

@@ -183,39 +183,32 @@ $(LIBEMU): $(LIBEMUOBJS)
 
 include $(EMUSRC)/cpu/cpu.mak
 
-$(LIBCPU): $(CPUOBJS)
-
 $(LIBDASM): $(DASMOBJS)
 
 
-
 #-------------------------------------------------
 # sound core objects
 #-------------------------------------------------
 
 include $(EMUSRC)/sound/sound.mak
 
-$(LIBSOUND): $(SOUNDOBJS)
-
-
-
 #-------------------------------------------------
 # video core objects
 #-------------------------------------------------
 
 include $(EMUSRC)/video/video.mak
 
-$(LIBVIDEO): $(VIDEOOBJS)
-
-
 #-------------------------------------------------
 # machine core objects
 #-------------------------------------------------
 
 include $(EMUSRC)/machine/machine.mak
 
-$(LIBMACHINE): $(MACHINEOBJS)
+#-------------------------------------------------
+# core optional library
+#-------------------------------------------------
 
+$(LIBOPTIONAL): $(CPUOBJS) $(SOUNDOBJS) $(VIDEOOBJS) $(MACHINEOBJS)
 
 #-------------------------------------------------
 # additional dependencies

src/mame/arcade.mak

@@ -0,0 +1,13 @@
+###########################################################################
+#
+#   arcade.mak
+#
+#   Small driver-specific example makefile
+#   Use make SUBTARGET=arcade to build
+#
+#   Copyright Nicola Salmoria and the MAME Team.
+#   Visit  http://mamedev.org for licensing and usage restrictions.
+#
+###########################################################################
+
+include $(SRC)/$(TARGET)/mame.mak

src/mame/fruit.mak

@@ -0,0 +1,13 @@
+###########################################################################
+#
+#   fruit.mak
+#
+#   Small driver-specific example makefile
+#   Use make SUBTARGET=fruit to build
+#
+#   Copyright Nicola Salmoria and the MAME Team.
+#   Visit  http://mamedev.org for licensing and usage restrictions.
+#
+###########################################################################
+
+include $(SRC)/$(TARGET)/mame.mak

src/mame/mame.mak

@@ -597,6 +597,7 @@ $(MAMEOBJ)/shared.a: \
 	$(MACHINE)/segacrp2.o \
 	$(MACHINE)/ticket.o \
 	$(VIDEO)/avgdvg.o \
+	$(AUDIO)/decobsmt.o \
 
 #-------------------------------------------------
 # manufacturer-specific groupings for drivers
@@ -870,7 +871,6 @@ $(MAMEOBJ)/dataeast.a: \
 	$(DRIVERS)/deco_mlc.o $(VIDEO)/deco_mlc.o \
 	$(DRIVERS)/deco156.o $(MACHINE)/deco156.o \
 	$(DRIVERS)/deco32.o $(VIDEO)/deco32.o $(VIDEO)/dvi.o \
-	$(AUDIO)/decobsmt.o \
 	$(DRIVERS)/decocass.o $(MACHINE)/decocass.o $(MACHINE)/decocass_tape.o $(VIDEO)/decocass.o \
 	$(DRIVERS)/deshoros.o \
 	$(DRIVERS)/dietgo.o $(VIDEO)/dietgo.o \

src/mame/pinball.mak

@@ -0,0 +1,13 @@
+###########################################################################
+#
+#   pinball.mak
+#
+#   Small driver-specific example makefile
+#   Use make SUBTARGET=pinball to build
+#
+#   Copyright Nicola Salmoria and the MAME Team.
+#   Visit  http://mamedev.org for licensing and usage restrictions.
+#
+###########################################################################
+
+include $(SRC)/$(TARGET)/mame.mak