# makefile by mza
#
# this makefile does the following:
# builds an object file for each c/cpp file in src/
# builds a library file containing all the object files from code in src/lib/
# builds an executable for each c/cpp file in src/ that's not in src/lib/

src_list_c   := $(shell find src/ ! -wholename "src/lib/*" -name "*.c")
src_list_cpp := $(shell find src/ ! -wholename "src/lib/*" -name "*.cpp")
#src_list     := $(src_list_c) $(src_list_cpp)
lib_src_list := $(shell find src/lib/ -name "*.cpp")
obj_list_cpp := $(src_list_cpp:src/%.cpp=work/%.o)
obj_list_c   := $(src_list_c:src/%.c=work/%.o)
lib_obj_list := $(lib_src_list:src/lib/%.cpp=work/%.o)
obj_list     := $(obj_list_c) $(obj_list_cpp) $(lib_obj_list)
list_c       := $(shell find src/ -maxdepth 1 -iname "*.c" -printf "%P ")
bin_list_c   := $(list_c:%.c=bin/%)
list_cpp     := $(shell find src/ -maxdepth 1 -iname "*.cpp" -printf "%P ")
bin_list_cpp := $(list_cpp:%.cpp=bin/%)
bin_list     := $(bin_list_c) $(bin_list_cpp)
library      := lib/libmza.a

# -D_FILE_OFFSET_BITS=64 is to allow for files greater than 2GiB
COMPILE_OPTIONS := -D_FILE_OFFSET_BITS=64 -Isrc/lib

default :
	@if [ ! -e src     ]; then mkdir src;     fi
	@if [ ! -e src/lib ]; then mkdir src/lib; fi
	@if [ ! -e work    ]; then mkdir work;    fi
	@if [ ! -e lib     ]; then mkdir lib;     fi
	@if [ ! -e bin     ]; then mkdir bin;     fi
	@$(MAKE) --no-print-directory all

work/%.o : src/lib/%.cpp src/lib/%.h ;
	g++ -o $@ -c $< $(COMPILE_OPTIONS)

work/%.o : src/%.c ;
	gcc -o $@ -c $< $(COMPILE_OPTIONS)

work/%.o : src/%.cpp ;
	g++ -o $@ -c $< $(COMPILE_OPTIONS)

$(library) : $(lib_obj_list) ;
	@# ar turns a set of object files into a static library:
	ar -cq $@ $(lib_obj_list)

bin/% : work/%.o ;
	gcc -o $@ $^

clean : ;
	rm -rf work bin lib

all : $(obj_list) $(library) $(bin_list)

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# only need to specify explicit rules here if there is a dependency on code in the library:

bin/rpn : work/rpn.o $(library) ;
	g++ -o $@ $^