PREFIX ?= /usr/local
INCLUDEDIR = $(PREFIX)/include
LIBDIR = $(PREFIX)/lib
DATADIR = $(PREFIX)/share
INCLUDE = $(DESTDIR)$(INCLUDEDIR)/bitstream
PKGCONFIG = $(DESTDIR)$(DATADIR)/pkgconfig
VERSION = 1.5

all:
	ln -nsf .. examples/bitstream
	$(MAKE) -C examples

bitstream.pc: bitstream.pc.in Makefile
	@echo "GEN      $@"
	@sed -e 's|@PREFIX@|$(PREFIX)|' \
	     -e 's|@INCLUDEDIR@|$(INCLUDEDIR)|' \
	     -e 's|@VERSION@|$(VERSION)|' \
	     $< > $@

install: bitstream.pc
	@echo "INSTALL  $(INCLUDE)"
	@install -d $(INCLUDE)
	@install -m 644 common.h $(INCLUDE)/
	@install -d $(INCLUDE)/atsc
	@install -m 644 atsc/*.h $(INCLUDE)/atsc
	@install -d $(INCLUDE)/atsc/si
	@install -m 644 atsc/si/*.h $(INCLUDE)/atsc/si
	@install -d $(INCLUDE)/dvb
	@install -m 644 dvb/*.h $(INCLUDE)/dvb
	@install -d $(INCLUDE)/dvb/si
	@install -m 644 dvb/si/*.h $(INCLUDE)/dvb/si
	@install -d $(INCLUDE)/ebu
	@install -m 644 ebu/*.h $(INCLUDE)/ebu
	@install -d $(INCLUDE)/ietf
	@install -m 644 ietf/* $(INCLUDE)/ietf
	@install -d $(INCLUDE)/ieee
	@install -m 644 ieee/* $(INCLUDE)/ieee
	@install -d $(INCLUDE)/itu
	@install -m 644 itu/* $(INCLUDE)/itu
	@install -d $(INCLUDE)/mpeg
	@install -m 644 mpeg/*.h $(INCLUDE)/mpeg
	@install -d $(INCLUDE)/mpeg/psi
	@install -m 644 mpeg/psi/*.h $(INCLUDE)/mpeg/psi
	@install -d $(INCLUDE)/scte
	@install -m 644 scte/*.h $(INCLUDE)/scte
	@install -d $(INCLUDE)/smpte
	@install -m 644 smpte/*.h $(INCLUDE)/smpte
	@echo "INSTALL  $(PKGCONFIG)/bitstream.pc"
	@install -d $(PKGCONFIG)
	@install -m 644 bitstream.pc $(PKGCONFIG)

uninstall:
	@echo "REMOVE   $(INCLUDE)"
	@$(RM) -r $(INCLUDE)
	@echo "REMOVE   $(PKGCONFIG)/bitstream.pc"
	@$(RM) $(PKGCONFIG)/bitstream.pc

dist:
	git archive --format=tar --prefix=bitstream-$(VERSION)/ master | \
	  bzip2 -9 > bitstream-$(VERSION).tar.bz2

clean:
	$(RM) bitstream bitstream.pc
	$(MAKE) -C examples clean

# if you want to check only particular headers,
# use make check HEADER_LIST="dvb/sim.h ietf/rtp.h"

HEADER_LIST = $$(find * -name '*.h')

FLAGS = -I. -Werror -Wall -Wextra -Wno-unused-parameter -Wno-sign-compare -Wformat=2

compiler_c = $(CC) $(FLAGS) $(CFLAGS) -std=gnu99
compiler_c++ = $(CXX) $(FLAGS) $(CXXFLAGS)
compile = $(compiler_$1) -include "$$header" -c -x $1 /dev/null -o /dev/null

check:
	@ln -nsf . bitstream
	@for header in $(HEADER_LIST); do \
	  $(if $(V),set -x;) \
	  $(call compile,c) || exit 1; \
	  $(call compile,c++) || exit 1; \
	  echo "PASS: $$header"; \
	done

.PHONY: all install uninstall dist clean check