prefix := @prefix@
exec_prefix := @exec_prefix@

BINDIR := @bindir@
VARDIR := /var/paraslash
PKGDATADIR := @datarootdir@/@PACKAGE_NAME@
MANDIR := @datarootdir@/man/man1
PACKAGE_VERSION := @PACKAGE_VERSION@
PACKAGE_STRING := @PACKAGE_STRING@
install_sh := @install_sh@
executables := @executables@
ggo_descriptions_declared := @ggo_descriptions_declared@

GENGETOPT := @gengetopt@
HELP2MAN := @help2man@
MKDIR_P := mkdir -p

build_date := $(shell date)
uname_s := $(shell uname -s 2>/dev/null || echo "UNKNOWN_OS")
uname_rs := $(shell uname -rs)
cc_version := $(shell $(CC) --version | head -n 1)

GIT_VERSION := $(shell ./GIT-VERSION-GEN git-version.h)

m4_ggo_dir := m4/gengetopt
test_dir := t
ifeq ("$(origin O)", "command line")
	build_dir := $(O)
else
	build_dir := build
endif
ggo_dir := $(build_dir)/ggo
object_dir := $(build_dir)/objects
dep_dir := $(build_dir)/deps
man_dir := $(build_dir)/man/man1
cmdline_dir := $(build_dir)/cmdline

DEBUG_CPPFLAGS += -g -Wunused -Wundef -W
DEBUG_CPPFLAGS += -Wredundant-decls
DEBUG_CPPFLAGS += -Wall -Wno-sign-compare -Wno-unknown-pragmas
DEBUG_CPPFLAGS += -Wformat-security
DEBUG_CPPFLAGS += -Wmissing-format-attribute
# produces false positives
# DEBUG_CPPFLAGS += -Wunreachable-code
# DEBUG_CPPFLAGS += -Wwrite-strings

# invalid option for gcc-3.3.3
# DEBUG_CPPFLAGS += -Wextra
# DEBUG_CPPFLAGS += -Wold-style-definition
# DEBUG_CPPFLAGS += -Wdeclaration-after-statement
# DEBUG_CPPFLAGS += -Wsuggest-attribute=const

# many warnings about trivial stuff
# CPPFLAGS += -Wconversion

ifeq ($(uname_s),Linux)
	CPPFLAGS += -fdata-sections -ffunction-sections
	LDFLAGS += -Wl,--gc-sections
	CPPFLAGS += -Wstrict-prototypes
	CPPFLAGS += -Wshadow
	# causes warnings on *BSD for the feature test macros
	CPPFLAGS += -Wunused-macros
endif
CPPFLAGS += -Os
CPPFLAGS += -Wuninitialized
CPPFLAGS += -Wchar-subscripts
CPPFLAGS += -DBINDIR='"$(BINDIR)"'
CPPFLAGS += -DBUILD_DATE='"$(build_date)"'
CPPFLAGS += -DUNAME_RS='"$(uname_rs)"'
CPPFLAGS += -DCC_VERSION='"$(cc_version)"'
CPPFLAGS += -Werror-implicit-function-declaration
CPPFLAGS += -Wmissing-noreturn
CPPFLAGS += -Wbad-function-cast
CPPFLAGS += -fno-strict-aliasing
CPPFLAGS += -DMAIN_INPUT_FILE_IS_$(*F)
CPPFLAGS += @arch_cppflags@
CPPFLAGS += -I/usr/local/include
CPPFLAGS += -I$(cmdline_dir)
CPPFLAGS += @osl_cppflags@

LDFLAGS += @clock_gettime_ldflags@

man_pages := $(patsubst %, $(man_dir)/%.1, @executables@)

autocrap := config.h.in configure
tarball_pfx := @PACKAGE_TARNAME@-$(PACKAGE_VERSION)
tarball_delete := $(addprefix $(tarball_pfx)/,\
	web .changelog_before_cvs .changelog_cvs .gitignore\
	skencil)
tarball := @PACKAGE_TARNAME@-$(PACKAGE_VERSION).tar.bz2

# To put more focus on warnings, be less verbose as default
# Use 'make V=1' to see the full commands
ifeq ("$(origin V)", "command line")
	Q :=
else
	Q := @
endif

.PHONY: dep all clean distclean maintainer-clean install man tarball
all: dep @executables@ $(man_pages)
dep: $(deps)
man: $(man_pages)
tarball: $(tarball)

$(object_dir) $(man_dir) $(ggo_dir) $(cmdline_dir) $(dep_dir):
	$(Q) $(MKDIR_P) $@

-include $(m4_ggo_dir)/makefile

# When in doubt, use brute force (Ken Thompson)
TOUPPER = \
$(subst a,A,$(subst b,B,$(subst c,C,$(subst d,D,$(subst e,E,\
$(subst f,F,$(subst g,G,$(subst h,H,$(subst i,I,$(subst j,J,\
$(subst k,K,$(subst l,L,$(subst m,M,$(subst n,N,$(subst o,O,\
$(subst p,P,$(subst q,Q,$(subst r,R,$(subst s,S,$(subst t,T,\
$(subst u,U,$(subst v,V,$(subst w,W,$(subst x,X,$(subst y,Y,\
$(subst z,Z,$1))))))))))))))))))))))))))

%_command_list.h: %.cmd %.c
	@[ -z "$(Q)" ] || echo 'GEN $@'
	$(Q) ./command_util.sh h < $< >$@
%_command_list.man: %.cmd %.c
	@[ -z "$(Q)" ] || echo 'GEN $@'
	$(Q) ./command_util.sh man < $< > $@
%_completion.h: %.cmd %.c
	@[ -z "$(Q)" ] || echo 'GEN $@'
	$(Q) ./command_util.sh compl $(strip $(call TOUPPER,$(*F)))_COMPLETERS \
		$(strip $(call TOUPPER,$(*F)))_COMMANDS	< $< > $@

server_command_list.h server_command_list.man server_completion.h: command.c
afs_command_list.h afs_command_list.man afs_completion.h: afs.c aft.c attribute.c
audiod_command_list.h audiod_command_list.man audiod_completion.h: audiod_command.c

server_command_lists_man = server_command_list.man afs_command_list.man
$(man_dir)/para_server.1: para_server $(server_command_lists_man) | $(man_dir)
	@[ -z "$(Q)" ] || echo 'MAN $<'
	$(Q) opts="-h --detailed-help -N `for i in $(server_command_lists_man); do printf "%s\n" "-i $$i"; done`"; \
	$(HELP2MAN) $$opts ./para_server > $@

$(man_dir)/para_audiod.1: para_audiod audiod_command_list.man | $(man_dir)
	@[ -z "$(Q)" ] || echo 'MAN $<'
	$(Q) $(HELP2MAN) -h --detailed-help -N -i audiod_command_list.man ./para_audiod > $@

$(man_dir)/para_play.1: para_play play_command_list.man | $(man_dir)
	@[ -z "$(Q)" ] || echo 'MAN $<'
	$(Q) $(HELP2MAN) -h --detailed-help -N -i play_command_list.man ./para_play > $@

$(man_dir)/%.1: % | $(man_dir)
	@[ -z "$(Q)" ] || echo 'MAN $<'
	$(Q) $(HELP2MAN) -h --detailed-help -N ./$< > $@

$(object_dir)/crypt.o: crypt.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @openssl_cppflags@ $<
$(object_dir)/spx_common.o: spx_common.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<

$(object_dir)/spxdec_filter.o: spxdec_filter.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<

$(object_dir)/spx_afh.o: spx_afh.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<

$(object_dir)/oggdec_filter.o: oggdec_filter.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<

$(object_dir)/ogg_afh.o: ogg_afh.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<

$(object_dir)/ogg_afh_common.o: ogg_afh_common.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ogg_cppflags@ $<

$(object_dir)/mp3dec_filter.o: mp3dec_filter.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @mad_cppflags@ $<

$(object_dir)/compress_filter.o: compress_filter.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) -O3 $<

$(object_dir)/aacdec_filter.o: aacdec_filter.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @faad_cppflags@ $<

$(object_dir)/aac_common.o: aac_common.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @faad_cppflags@ $<

$(object_dir)/aac_afh.o: aac_afh.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @faad_cppflags@ $<

$(object_dir)/mp3_afh.o: mp3_afh.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @id3tag_cppflags@ $<

$(object_dir)/gui%.o: gui%.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @curses_cppflags@ $<
$(object_dir)/ao_write.o: ao_write.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) @ao_cppflags@ $<

$(object_dir)/%.cmdline.o: $(cmdline_dir)/%.cmdline.c $(cmdline_dir)/%.cmdline.h | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c $(CPPFLAGS) -Wno-unused-function -o $@ $<

$(object_dir)/%.o: %.c | $(object_dir)
	@[ -z "$(Q)" ] || echo 'CC $<'
	$(Q) $(CC) -c -o $@ $(CPPFLAGS) $(DEBUG_CPPFLAGS) $<

$(dep_dir)/%.cmdline.d: $(cmdline_dir)/%.cmdline.c | $(dep_dir)
	@[ -z "$(Q)" ] || echo 'DEP $<'
	$(Q) ./depend.sh $(dep_dir) $(object_dir) $(cmdline_dir) \
		$(CPPFLAGS) $< > $@

$(dep_dir)/%.d: %.c | $(dep_dir)
	@[ -z "$(Q)" ] || echo 'DEP $<'
	$(Q) ./depend.sh $(dep_dir) $(object_dir) $(cmdline_dir) \
		$(CPPFLAGS) $< > $@

all_objs := @recv_objs@ @filter_objs@ @client_objs@ @gui_objs@ \
	@audiod_objs@ @audioc_objs@ @fade_objs@ @server_objs@ \
	@write_objs@ @afh_objs@ @play_objs@
deps := $(addprefix $(dep_dir)/, $(all_objs:.o=.d))

recv_objs := $(addprefix $(object_dir)/, @recv_objs@)
filter_objs := $(addprefix $(object_dir)/, @filter_objs@)
client_objs := $(addprefix $(object_dir)/, @client_objs@)
gui_objs := $(addprefix $(object_dir)/, @gui_objs@)
audiod_objs := $(addprefix $(object_dir)/, @audiod_objs@)
audioc_objs := $(addprefix $(object_dir)/, @audioc_objs@)
fade_objs := $(addprefix $(object_dir)/, @fade_objs@)
server_objs := $(addprefix $(object_dir)/, @server_objs@)
write_objs := $(addprefix $(object_dir)/, @write_objs@)
afh_objs := $(addprefix $(object_dir)/, @afh_objs@)
play_objs := $(addprefix $(object_dir)/, @play_objs@)

ifeq ($(findstring clean, $(MAKECMDGOALS)),)
-include $(deps)
endif

para_recv: $(recv_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) $(recv_objs) -o $@ @recv_ldflags@ $(LDFLAGS)

para_filter: $(filter_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) $(filter_objs) -o $@ @filter_ldflags@ $(LDFLAGS)

para_client: $(client_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) -o $@ $(client_objs) @client_ldflags@ $(LDFLAGS)

para_gui: $(gui_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) -o $@ $(gui_objs) @gui_ldflags@ $(LDFLAGS)

para_audiod: $(audiod_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) -o $@ $(audiod_objs) @audiod_ldflags@ $(LDFLAGS)

para_audioc: $(audioc_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) -o $@ $(audioc_objs) @audioc_ldflags@ $(LDFLAGS)

para_fade: $(fade_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) -o $@ $(fade_objs) @fade_ldflags@ $(LDFLAGS)

para_server: $(server_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) -o $@ $(server_objs) @server_ldflags@ $(LDFLAGS)

para_write: $(write_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) -o $@ $(write_objs) @write_ldflags@ $(LDFLAGS)

para_afh: $(afh_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) -o $@ $(afh_objs) @afh_ldflags@ $(LDFLAGS)

para_play: $(play_objs)
	@[ -z "$(Q)" ] || echo 'LD $@'
	$(Q) $(CC) -o $@ $(play_objs) @play_ldflags@ $(LDFLAGS)

clean:
	@[ -z "$(Q)" ] || echo 'CLEAN'
	$(Q) rm -f @executables@
	$(Q) rm -rf $(object_dir)

clean2: clean
	@[ -z "$(Q)" ] || echo 'CLEAN2'
	$(Q) rm -f *_command_list.* *_completion.h
	$(Q) rm -rf $(build_dir)
distclean: clean2 test-clean
	@[ -z "$(Q)" ] || echo 'DISTCLEAN'
	$(Q) rm -f Makefile autoscan.log config.status config.log
	$(Q) rm -rf autom4te.cache
	$(Q) rm -f GPATH GRTAGS GSYMS GTAGS

maintainer-clean: distclean
	rm -f *.tar.bz2 \
		config.h configure \
		config.h.in skencil/*.pdf skencil/*.ps
	rm -rf web_sync

install: all man
	$(MKDIR_P) $(BINDIR) $(MANDIR)
	$(install_sh) -s -m 755 @executables@ $(BINDIR)
	$(install_sh) -m 644 $(man_pages) $(MANDIR)
	$(MKDIR_P) $(VARDIR) >/dev/null 2>&1 || true # not fatal, so don't complain

$(tarball):
	rm -rf $(tarball_pfx).tar.bz2 $(tarball_pfx)
	git archive --format=tar --prefix=$(tarball_pfx)/ HEAD \
		| tar --delete $(tarball_delete) > $(tarball_pfx).tar
	$(MKDIR_P) $(tarball_pfx)
	./GIT-VERSION-GEN > $(tarball_pfx)/VERSION
	cp -r $(autocrap) $(tarball_pfx)
	tar rf $(tarball_pfx).tar $(tarball_pfx)/*
	bzip2 -9 $(tarball_pfx).tar
	ls -l $(tarball_pfx).tar.bz2
	rm -rf $(tarball_pfx)
%.ps: %.sk
	sk2ps $< > $@
%.pdf: %.ps
	ps2pdf - - < $< > $@

include $(test_dir)/makefile.test