# SelfMakefile 0.1
#
# http://www.cscience.org/~fmierlo/Projects/SelfMakefile/
#
# What is this?
#
# 	A nice Makefile. You must need setup some variables
#	after generate a template Makefile and it's working.
#
# Why ccache is cool?
#	
#	When you change a header and your Makefile don't
#	know that your source depend of it, the make don't
#	rebuild your source :'(
#
#	ccache can do this work for you ;-), leave it cache
#	your builds and decide when it must be rebuild. Just
#	be carrefull with disk usage.
#
#	http://ccache.samba.org/
#
# Why Self?
#
#	It's because you can just do
#
# 	make -f SelfMakefile helpex >> Makefile && make help
#
#	to have a template make file.
#
#	Obs: in GoboLinux world you must do `which make` to
#	     disable ColorMake.
#
# -- fabio.m

foo:
	@ \
		CXXFLAGS="$(INC) $(CXXFLAGS)" \
		CFLAGS="$(INC) $(CFLAGS)" \
		LDFLAGS="$(LIB) $(LDFLAGS)" \
		make $(OUT)

$(OUT): $(OBJ)

run: foo
	$(OUT) $(RUN)

debug:
	@ \
		CXXFLAGS=$(CXXDEBUGFLAGS)	\
		CFLAGS=$(CDEBUGFLAGS) \
		LDFLAGS=$(LDDEBUGFLAGS) \
		make 

debugrun: debug
	$(OUT) $(RUN)

clean:
	rm -f $(OUT) $(OBJ)

happy:
	@echo ":-)"

show:
	@echo CXXFLAGS = $(CXXFLAGS)
	@echo CFLAGS = $(CFLAGS)
	@echo LDFLAGS = $(LDFLAGS)
	@echo CXXDEBUGFLAGS = $(CXXDEBUGFLAGS)
	@echo CDEBUGFLAGS = $(CDEBUGFLAGS)
	@echo LDDEBUGDFLAGS = $(LDDEBUGFLAGS)
	@echo INC = $(INC)
	@echo LIB = $(LIB)
	@echo RUN = $(RUN)
	@echo OUT = $(OUT)
	@echo OBJ = $(OBJ)

help:
	@echo "Targets:"
	@echo "make		- build $(OUT)"
	@echo "make run	- run '$(OUT) $(RUN)'"
	@echo "make debug	- replace CXX and C flags for debug flags and build $(OUT)"
	@echo "make debugrun	- do a 'make debug' followed by 'make run'"
	@echo "make show	- show build variables"
	@echo "make clean	- remove builded files"
	@echo "make help	- you already know"
	@echo "make helpex	- nice try"
	@echo ""
	@echo "Variables:"
	@echo "CXXFLAGS	- CXX options"
	@echo "CFLAGS		- C options"
	@echo "LDFLAGS		- ld options"
	@echo "CXXDEBUGFLAGS	- CXX debug options"
	@echo "CDEBUGFLAGS	- C debug options"
	@echo "LDDEBUGFLAGS	- ls debug options"
	@echo "INC		- -I (include path) and others options"
	@echo "LIB		- -I (include path) and others options"
	@echo "RUN		- run parameters"
	@echo "OUT		- output file"
	@echo "OBJ		- input objects (.o files)"

helpex:
	@echo "# Example:"
	@echo ""
	@echo "# Begin of the Makefile"
	@echo ""
	@echo "PREFIX=$(HOME)"
	@echo ""
	@echo "INC += -I\$$(PREFIX)/foo/include"
	@echo "LIB += -L\$$(PREFIX)/foo/lib"
	@echo "LIB += -lfoo"
	@echo ""
	@echo "INC += -I\$$(PREFIX)/bar/include"
	@echo "LIB += -L\$$(PREFIX)/bar/lib"
	@echo "LIB += -llib"
	@echo ""
	@echo "CXXDEBUGFLAGS = -g"
	@echo "CDEBUGFLAGS = -g"
	@echo ""
	@echo "RUN = -i foo -o bar"
	@echo ""
	@echo "OUT = main"
	@echo ""
	@echo "OBJ =  \\"
	@echo "	main.o \\"
	@echo "	myfoo.o \\"
	@echo "	mybar.o \\"
	@echo ""
	@echo "include SelfMakefile"
	@echo ""
	@echo "# End of the Makefile"