Makefile

#define compiler flags for cc65 as well as gcc
cc65flags = -O $(addprefix -I, $(cbmincdirs))\
			 -D CBM_TARGET
cl65flags = -c -l $(basename $<).lst $(cc65flags) $(addprefix -Wa -I, $(cbmincdirs))
ccflags := -c -O -g --std=gnu11 -fplan9-extensions $(shell /usr/local/bin/sdl2-config --cflags) \
			-D LINUX_TARGET
wccflags = -c -O -g --std=gnu11 -mconsole -fplan9-extensions $(addprefix -I, $(wsdlincdirs)) \
			-D WINDOWS_TARGET
#$(shell $(wsdlcfgdir)\sdl2-config --cflags)

ld65flags = -Ln $(cbmdir)/src/$(exebasename).lbl -m $(cbmdir)/src/$(exebasename).map \
			$(addprefix -L, $(cbmlibdirs))
ldflags := $(shell /usr/local/bin/sdl2-config --static-libs)
wldflags = $(addprefix -L, $(wsdllibdirs) $(winlibdirs)) -mconsole -lSDL2 -lSDL2_TTF -lMCLib

exebasename = busycircle

#define basedirs for sources
cbmbasedir = /home/mc78/Coding_64
cbmdir = ./cbm
linuxdir = ./linux
windir = ./win
sharedir = ./share
testdir = ./tests
sdldir = /usr/include/SDL2
sdllibdir = /usr/lib/x86_64-linux-gnu/
wsdlcfgdir = C:\Users\MyAcer\Documents\Programmieren\DevelLibs\SDL\mingw\SDL2-2.0.4\i686-w64-mingw32\bin
wsdldir = C:\Users\MyAcer\Documents\Programmieren\DevelLibs\SDL\mingw
wsdllibdir = C:\Users\MyAcer\Documents\Programmieren\DevelLibs\SDL\mingw
cbmlibdirs = /home/mc78/Coding_64/lib $(USERPROFILE)\Documents\Programmieren\C64\lib
winlibdirs = ..\MyCLib


#get lists of source and header files for all targets
cbmtargets = $(wildcard $(cbmdir)/src/*.c) $(wildcard $(cbmdir)/src/*.s)
cbmtests = $(wildcard $(cbmdir)/testsrc/*.c)
linuxtests = $(wildcard $(linuxdir)/testsrc/*.c)
linuxtargets = $(wildcard $(linuxdir)/src/*.c)
sharetargets = $(wildcard $(sharedir)/src/*.c)
sharetests = $(wildcard $(sharedir)/testsrc/*.c)
sdltargets = $(wildcard $(sharedir)/SDL/src/*.c)
wintargets = $(wildcard $(windir)/src/*.c)

winheads = $(wildcard $(windir)/include/*.h)
cbmheads = $(wildcard $(cbmdir)/include/*.h)
linuxheads = $(wildcard $(linuxdir)/include/*.h)
shareheads = $(wildcard $(sharedir)/include/*.h)
sdlheads = $(wildcard $(sharedir)/SDL/include/*.h)

#set libraries to link
cbmlibs = carlos.lib
winlibs = ..\MyCLib\MCLib.a

#get object file names from source file names
cbmobjs = $(patsubst $(cbmdir)/src/%.s, $(cbmdir)/obj/%.o, \
			$(patsubst $(cbmdir)/src/%.c, $(cbmdir)/obj/%.o, $(cbmtargets)) ) \
		  $(patsubst $(sharedir)/obj%, $(sharedir)/cbmobj%, $(shareobjs))

cbmtestprgs = $(patsubst $(cbmdir)/testsrc/%.c, $(testdir)/cbm/%.prg, $(cbmtests))\
				$(patsubst $(sharedir)/testsrc/%.c, $(testdir)/cbm/%.prg, $(sharetests))

linuxobjs = $(patsubst $(linuxdir)/src/%.c, $(linuxdir)/obj/%.o, $(linuxtargets)) $(sharedir)/obj/sindata.o
linuxtestprgs = $(patsubst $(linuxdir)/testsrc/%.c, $(testdir)/linux/%, $(linuxtests))
shareobjs = $(patsubst $(sharedir)/src/%.c, $(sharedir)/obj/%.o, $(sharetargets))
wshareobjs = $(patsubst $(sharedir)/src/%.c, $(sharedir)/winobj/%.o, $(sharetargets))
sharetestobjs = $(patsubst $(sharedir)/testsrc/%.c, $(sharedir)/testobj/%.o, $(sharetargets))
sdlobjs = $(patsubst $(sharedir)/SDL/src/%.c, $(sharedir)/SDL/obj/%.o, $(sdltargets))
wsdlobjs = $(patsubst $(sharedir)/SDL/src/%.c, $(sharedir)/SDL/winobj/%.o, $(sdltargets))
winobjs = $(patsubst $(windir)/src/%.c, $(windir)/obj/%.o, $(wintargets)) $(sharedir)/winobj/sindata.o

shareincdirs = ../MCLib ../MyCLib
cbmincdirs = $(cbmbasedir)/include $(cbmdir)/include $(sharedir)/include $(shareincdirs) \
			C:\Users\MyAcer\Documents\Programmieren\C64\include
linuxincdirs = $(linuxdir)/include $(sharedir)/include $(sharedir)/SDL/include \
				$(shareincdirs) $(sdldir)
winincdirs = $(windir)/include $(sharedir)/include $(sharedir)/SDL/include \
				$(shareincdirs)
wsdlincdirs = $(wsdldir)\SDL2-2.0.4\i686-w64-mingw32\include\SDL2 \
				$(wsdldir)\SDL2_ttf-2.0.14\i686-w64-mingw32\include\SDL2
wsdllibdirs = $(wsdllibdir)\SDL2-2.0.4\i686-w64-mingw32\lib \
				$(wsdllibdir)\SDL2_ttf-2.0.14\i686-w64-mingw32\lib
#define directories with test code
cc65test = ./cbm/src/tests/*.o

#autorules to compile sources to objects for each target
$(cbmdir)/obj/%.o: $(cbmdir)/src/%.c $(cbmheads) $(shareheads)
	cc65 $(cc65flags) -E -tc64 -o $@.i $<
	cl65 $(cl65flags) -o $@ $<

$(cbmdir)/obj/%.o: $(cbmdir)/src/%.s
	cl65 $(cl65flags) -o $@ $<

$(testdir)/cbm/%.prg: $(cbmdir)/testsrc/%.c
	-@echo "### $< ###:"
	-cl65 $(cc65flags) $(ld65flags) -o $@ $(cbmobjs) $(cbmlibs) $<

$(sharedir)/cbmobj/%.o: $(sharedir)/src/%.c
	cc65 $(cc65flags) -E -tc64 -o $@.i $<
	cl65 $(cl65flags) -o $@ $<

$(testdir)/cbm/%.prg: $(sharedir)/testsrc/%.c
	-@echo "### $< ###:"
	-cl65 $(cc65flags) $(ld65flags) -o $@ $(cbmobjs) $(cbmlibs) $<

$(linuxdir)/obj/%.o: $(linuxdir)/src/%.c
	gcc $(ccflags) -D LINUX_TARGET $(addprefix -I, $(linuxincdirs)) -o $@ $<

$(windir)/obj/%.o: $(windir)/src/%.c
	gcc $(wccflags) $(addprefix -I, $(winincdirs)) -o $@ $<

$(sharedir)/obj/%.o: $(sharedir)/src/%.c
	gcc $(ccflags) -D LINUX_TARGET $(addprefix -I, $(linuxincdirs)) -o $@ $<

$(sharedir)/obj/%.o: $(sharedir)/x86src/%.c
	gcc $(ccflags) -D LINUX_TARGET $(addprefix -I, $(linuxincdirs)) -o $@ $<

$(sharedir)/SDL/obj/%.o: $(sharedir)/SDL/src/%.c
	gcc $(ccflags)  $(addprefix -I, $(linuxincdirs)) -o $@ $<

$(sharedir)/obj/%.o: $(sharedir)/src/calcsin/%.c
	gcc $(ccflags)  $(addprefix -I, $(linuxincdirs)) -o $@ $<

$(sharedir)/cbmobj/%.o: $(sharedir)/src/calcsin/%.c
	cc65 $(cc65flags) -E -tc64 -o $@.i $<
	cl65 $(cl65flags) -o $@ $<

$(sharedir)/winobj/%.o: $(sharedir)/src/%.c
	gcc $(wccflags)  $(addprefix -I, $(winincdirs)) -o $@ $<

$(sharedir)/winobj/%.o: $(sharedir)/testsrc/%.c
	gcc $(wccflags)  $(addprefix -I, $(winincdirs)) -o $@ $<

$(sharedir)/winobj/%.o: $(sharedir)/x86src/%.c
	gcc $(wccflags)  $(addprefix -I, $(winincdirs)) -o $@ $<

$(sharedir)/SDL/winobj/%.o: $(sharedir)/SDL/src/%.c
	gcc $(wccflags)  $(addprefix -I, $(winincdirs)) -o $@ $<

$(testdir)/share/%.exe: $(sharedir)/winobj/%.o
	gcc $(wldflags)  $(addprefix -I, $(winincdirs)) -o $@ $(winobjs) $<

#define targets and their respective dependencies on header files
precalcsin: $(sharedir)/winobj/sintable.o $(sharedir)/winobj/calcsin.o $(testdir)/share/sintable.exe

share: $(shareobjs) $(shareheads)
wshare: $(wshareobjs) $(shareheads)

cbm: $(cbmobjs)
	cl65 $(ld65flags) -o $(exebasename).prg $(cbmobjs) $(cbmlibs)

cbmtests: $(cbmobjs) $(cbmheads) $(shareheads) $(cbmtestprgs)

linux: share $(linuxobjs) $(sdlobjs) $(linuxheads) $(sdlheads)
	echo ldflags: $(ldflags)
	gcc -o $(exebasename)_lnx $(linuxobjs) $(shareobjs) $(sdlobjs) $(ldflags) -lSDL2_ttf

win: wshare $(winobjs) $(wsdlobjs) $(winheads) $(sdlheads)
	# echo ldflags: $(wldflags)
	gcc -o $(exebasename).exe $(winobjs) $(wshareobjs) $(wsdlobjs) $(wldflags)


.PHONY: editcbm
editcbm:

	gedit $(cbmtargets) $(cbmheads) $(sharetargets) $(shareheads) Makefile &

.PHONY: editlinux
editlinux:
	gedit $(linuxtargets) $(linuxheads) $(sharetargets) $(shareheads) $(sdltargets) $(sdlheads) Makefile &

.PHONY: editwin
editwin:
	gedit $(wintargets) $(winheads) $(sharetargets) $(shareheads) $(sdltargets) $(sdlheads) Makefile &

.PHONY: printvars
printvars:
	@echo "*** CBM targets: $(cbmtargets) ***"
	@echo "*** CBM objects: $(cbmobjs) ***"
	@echo "*** CBM heads: $(cbmheads) ***"
	@echo "*** LINUX targets: $(linuxtargets) ***"
	@echo "*** LINUX objects: $(linuxobjs) ***"
	@echo "*** SHARE targets: $(sharetargets) ***"
	@echo "*** SHARE objects: $(shareobjs) ***"
	@echo "*** SHARE heads: $(shareheads) ***"
	@echo "*** SDL targets: $(sdltargets) ***"
	@echo "*** SDL objects: $(sdlobjs) ***"
	@echo "*** CBM tests: $(cbmtests) ***"
	@echo "*** SHARE tests: $(sharetests) ***"
	@echo "*** CBM testprgs: $(cbmtestprgs) ***"
	@echo "*** CBM libs: $(cbmlibs) ***"
#target to cleanup objects and other files
.PHONY: clean
clean:
	-rm -fr "*.o" $(linuxobjs) $(cbmobjs) $(shareobjs) $(sdlobjs) $(cbmtestprgs)
	-rm -R *.prg

.PHONY: cleanwin
cleanwin:
	cmd /c del $(subst /,\, $(winobjs) $(wshareobjs) $(wsdlobjs))

#batch build targets
.PHONY: all
all:	cbm linux share

#for eventual usage of makedepend
# DO NOT DELETE