SUBDIRS	= lib
TARGETS	= $(OBJDIR)cpp$(EXEEXT)
OBJDIR	=
PREFIX	= /usr/local
DESTDIR	=
BINDIR	= $(PREFIX)/bin
SBINDIR	= $(PREFIX)/sbin
CC	= cc
CPPFLAGSF= -I ../include
CPPFLAGS=
CFLAGSF	= `pkg-config --cflags libSystem` -fPIE
CFLAGS	= -W -Wall -g -O2 -pedantic -D_FORTIFY_SOURCE=2 -fstack-protector
LDFLAGSF= `pkg-config --libs libSystem`
LDFLAGS	= -pie -Wl,-z,relro -Wl,-z,now
EXEEXT	=
RM	= rm -f
LN	= ln -f
MKDIR	= mkdir -m 0755 -p
INSTALL	= install


all: subdirs $(TARGETS)

subdirs:
	@for i in $(SUBDIRS); do (cd "$$i" && \
		if [ -n "$(OBJDIR)" ]; then \
		([ -d "$(OBJDIR)$$i" ] || $(MKDIR) -- "$(OBJDIR)$$i") && \
		$(MAKE) OBJDIR="$(OBJDIR)$$i/"; \
		else $(MAKE); fi) || exit; done

cpp_OBJS = $(OBJDIR)main.o
cpp_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
cpp_LDFLAGS = $(LDFLAGSF) $(LDFLAGS) -L$(OBJDIR)lib -L$(LIBDIR) -Wl,-rpath,$(LIBDIR) -lcpp

$(OBJDIR)cpp$(EXEEXT): $(cpp_OBJS) $(OBJDIR)lib/libcpp.a
	$(CC) -o $(OBJDIR)cpp$(EXEEXT) $(cpp_OBJS) $(cpp_LDFLAGS)

$(OBJDIR)main.o: main.c ../include/CPP.h
	$(CC) $(cpp_CFLAGS) -o $(OBJDIR)main.o -c main.c

clean:
	@for i in $(SUBDIRS); do (cd "$$i" && \
		if [ -n "$(OBJDIR)" ]; then \
		$(MAKE) OBJDIR="$(OBJDIR)$$i/" clean; \
		else $(MAKE) clean; fi) || exit; done
	$(RM) -- $(cpp_OBJS)

distclean:
	@for i in $(SUBDIRS); do (cd "$$i" && \
		if [ -n "$(OBJDIR)" ]; then \
		$(MAKE) OBJDIR="$(OBJDIR)$$i/" distclean; \
		else $(MAKE) distclean; fi) || exit; done
	$(RM) -- $(cpp_OBJS)
	$(RM) -- $(TARGETS)

install: all
	@for i in $(SUBDIRS); do (cd "$$i" && \
		if [ -n "$(OBJDIR)" ]; then \
		$(MAKE) OBJDIR="$(OBJDIR)$$i/" install; \
		else $(MAKE) install; fi) || exit; done
	$(MKDIR) $(DESTDIR)$(BINDIR)
	$(INSTALL) -m 0755 $(OBJDIR)cpp$(EXEEXT) $(DESTDIR)$(BINDIR)/cpp$(EXEEXT)

uninstall:
	@for i in $(SUBDIRS); do (cd "$$i" && \
		if [ -n "$(OBJDIR)" ]; then \
		$(MAKE) OBJDIR="$(OBJDIR)$$i/" uninstall; \
		else $(MAKE) uninstall; fi) || exit; done
	$(RM) -- $(DESTDIR)$(BINDIR)/cpp$(EXEEXT)

.PHONY: all subdirs clean distclean install uninstall
