#
# This Makefile requires GNU make.
#
# Do not make changes here.
# Use the included .mak files.
#

it: all

ifeq ($(realpath config.mak),)
$(error Missing config.mak; please use ./configure first)
endif

make_need := 3.81
ifeq "" "$(strip $(filter $(make_need), $(firstword $(sort $(make_need) $(MAKE_VERSION)))))"
$(error Your make ($(MAKE_VERSION)) is too old. You need $(make_need) or newer)
endif

include config.mak
include package/deps.mak

version_m := $(basename $(version))
version_M := $(basename $(version_m))
version_l := $(basename $(version_M))
CPPFLAGS_ALL := $(CPPFLAGS_AUTO) $(CPPFLAGS)
CFLAGS_ALL := $(CFLAGS_AUTO) $(CFLAGS)
LDFLAGS_ALL := $(LDFLAGS_AUTO) $(LDFLAGS)
LDLIBS_ALL := $(LDLIBS_AUTO) $(LDLIBS)
AR := $(CROSS_COMPILE)ar
RANLIB := $(CROSS_COMPILE)ranlib
STRIP := $(CROSS_COMPILE)strip
INSTALL := ./tools/install.sh

TYPES := size uid gid pid time dev ino

ALL_SRCS := $(sort $(wildcard src/lib*/*.c))
ALL_DOBJS := $(ALL_SRCS:%.c=%.lo)
ifeq ($(strip $(STATIC_LIBS_ARE_PIC)),)
ALL_SOBJS := $(ALL_SRCS:%.c=%.o)
CFLAGS_SHARED := -fPIC
else
ALL_SOBJS := $(ALL_DOBJS)
CFLAGS_SHARED :=
endif
ALL_LIBS := $(SHARED_LIBS) $(STATIC_LIBS)
BUILT_INCLUDES := \
src/include/$(package)/sysdeps.h \
src/include/$(package)/uint16.h \
src/include/$(package)/uint32.h \
src/include/$(package)/uint64.h \
src/include/$(package)/types.h \
src/include/$(package)/ip46.h
ALL_INCLUDES := $(sort $(BUILT_INCLUDES) $(wildcard src/include/$(package)/*.h))
ALL_SYSDEPS := $(wildcard $(sysdeps)/*)
ALL_DATA := $(wildcard src/etc/*)

all: $(ALL_LIBS) $(ALL_INCLUDES) $(ALL_SYSDEPS) $(ALL_DATA)

clean:
	@exec rm -f $(ALL_LIBS) $(ALL_BINS) $(ALL_SOBJS) $(ALL_DOBJS) $(BUILT_INCLUDES)

distclean: clean
	@exec rm -rf config.mak src/include/$(package)/config.h sysdeps.cfg

tgz: distclean
	@. package/info && \
	rm -rf /tmp/$$package-$$version && \
	cp -a . /tmp/$$package-$$version && \
	cd /tmp && \
	tar -zpcv --owner=0 --group=0 --numeric-owner --exclude=.git* -f /tmp/$$package-$$version.tar.gz $$package-$$version && \
	exec rm -rf /tmp/$$package-$$version

strip: $(ALL_LIBS)
ifneq ($(strip $(STATIC_LIBS)),)
	exec $(STRIP) -x -R .note -R .comment $(STATIC_LIBS)
endif
ifneq ($(strip $(SHARED_LIBS)),)
	exec $(STRIP) -R .note -R .comment $(SHARED_LIBS)
endif

install: install-sysconf install-sysdeps install-dynlib install-lib install-include
install-sysconf: $(ALL_DATA:src/etc/%=$(DESTDIR)$(sysconfdir)/%)
install-sysdeps: $(ALL_SYSDEPS:$(sysdeps)/%=$(DESTDIR)$(sysdepdir)/%)
install-dynlib: $(SHARED_LIBS:lib%.so.xyzzy=$(DESTDIR)$(dynlibdir)/lib%.so)
install-lib: $(STATIC_LIBS:lib%.a.xyzzy=$(DESTDIR)$(libdir)/lib%.a)
install-include: $(ALL_INCLUDES:src/include/$(package)/%.h=$(DESTDIR)$(includedir)/$(package)/%.h)

ifneq ($(exthome),)

$(DESTDIR)$(exthome): $(DESTDIR)$(home)
	exec $(INSTALL) -l $(notdir $(home)) $(DESTDIR)$(exthome)

update: $(DESTDIR)$(exthome)

global-links: $(DESTDIR)$(exthome) $(SHARED_LIBS:lib%.so.xyzzy=$(DESTDIR)$(sproot)/library.so/lib%.so.$(version_M))

$(DESTDIR)$(sproot)/library.so/lib%.so.$(version_M): $(DESTDIR)$(dynlibdir)/lib%.so.$(version_M)
	exec $(INSTALL) -D -l ..$(subst $(sproot),,$(exthome))/library.so/$(<F) $@

.PHONY: update global-links

endif

$(DESTDIR)$(sysconfdir)/%: src/etc/%
	exec $(INSTALL) -D -m 644 $< $@

$(DESTDIR)$(sysdepdir)/%: $(sysdeps)/%
	exec $(INSTALL) -D -m 644 $< $@

$(DESTDIR)$(dynlibdir)/lib%.so $(DESTDIR)$(dynlibdir)/lib%.so.$(version_M): lib%.so.xyzzy
	$(INSTALL) -D -m 755 $< $@.$(version) && \
	$(INSTALL) -l $(@F).$(version) $@.$(version_M) && \
	exec $(INSTALL) -l $(@F).$(version_M) $@

$(DESTDIR)$(libdir)/lib%.a: lib%.a.xyzzy
	exec $(INSTALL) -D -m 644 $< $@

$(DESTDIR)$(includedir)/$(package)/%.h: src/include/$(package)/%.h
	exec $(INSTALL) -D -m 644 $< $@

%.o: %.c
	exec $(CC) $(CPPFLAGS_ALL) $(CFLAGS_ALL) -c -o $@ $<

%.lo: %.c
	exec $(CC) $(CPPFLAGS_ALL) $(CFLAGS_ALL) $(CFLAGS_SHARED) -c -o $@ $<

libskarnet.a.xyzzy: $(ALL_SOBJS)
	exec $(AR) rc $@ $^
	exec $(RANLIB) $@

libskarnet.so.xyzzy: $(ALL_DOBJS)
	exec $(CC) -o $@ $(CFLAGS_ALL) $(CFLAGS_SHARED) $(LDFLAGS_ALL) $(LDFLAGS_SHARED) -Wl,-soname,libskarnet.so.$(version_M) $^ $(SOCKET_LIB) $(SPAWN_LIB) $(SYSCLOCK_LIB) $(TAINNOW_LIB) $(TIMER_LIB) $(UTIL_LIB)

.PHONY: it all clean distclean tgz strip install install-data install-sysdeps install-dynlib install-lib install-include

.DELETE_ON_ERROR:

src/include/$(package)/sysdeps.h: $(sysdeps)/sysdeps $(sysdeps)/target
	exec tools/gen-sysdepsh.sh `cat $(sysdeps)/target` < $(sysdeps)/sysdeps > $@

src/include/$(package)/uint16.h: $(sysdeps)/sysdeps src/headers/bits-header src/headers/bits-footer src/headers/bits-lendian src/headers/bits-bendian src/headers/bits-template src/headers/uint64-include src/include/$(package)/uint64.h
	exec tools/gen-bits.sh $(sysdeps)/sysdeps 16 6 7 5 17 > $@

src/include/$(package)/uint32.h: $(sysdeps)/sysdeps src/headers/bits-header src/headers/bits-footer src/headers/bits-lendian src/headers/bits-bendian src/headers/bits-template src/headers/uint64-include src/include/$(package)/uint64.h
	exec tools/gen-bits.sh $(sysdeps)/sysdeps 32 11 13 9 33 > $@

src/include/$(package)/uint64.h: $(sysdeps)/sysdeps src/headers/bits-header src/headers/bits-footer src/headers/bits-lendian src/headers/bits-bendian src/headers/bits-template src/headers/uint64-ulong64 src/headers/uint64-noulong64 src/headers/uint64-defs src/headers/uint64-macros
	exec tools/gen-bits.sh $(sysdeps)/sysdeps 64 21 25 17 65 > $@

src/include/$(package)/types.h: src/include/$(package)/uint16.h src/include/$(package)/uint32.h src/include/$(package)/uint64.h $(sysdeps)/sysdeps src/headers/types-header src/headers/types-footer src/headers/unsigned-template src/headers/signed-template
	exec tools/gen-types.sh $(sysdeps)/sysdeps $(TYPES) > $@

src/include/$(package)/ip46.h: src/include/$(package)/fmtscan.h src/include/$(package)/socket.h $(sysdeps)/sysdeps src/headers/ip46-header src/headers/ip46-footer src/headers/ip46-with src/headers/ip46-without
	@{ \
	  cat src/headers/ip46-header ; \
	  if $(ipv6) && grep -qF 'ipv6: yes' $(sysdeps)/sysdeps ; then cat src/headers/ip46-with ; \
	  else cat src/headers/ip46-without ; \
	  fi ; \
	  exec cat src/headers/ip46-footer ; \
	} > $@