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FFmpeg/ffbuild/library.mak
Martin Storsjö bea841a743 Fix libversion.sh for split version headers, to unbreak shared library builds
Signed-off-by: Martin Storsjö <martin@martin.st>
2022-03-17 11:11:17 +02:00

124 lines
4.6 KiB
Makefile

include $(SRC_PATH)/ffbuild/common.mak
ifeq (,$(filter %clean config,$(MAKECMDGOALS)))
-include $(SUBDIR)lib$(NAME).version
endif
LIBVERSION := $(lib$(NAME)_VERSION)
LIBMAJOR := $(lib$(NAME)_VERSION_MAJOR)
LIBMINOR := $(lib$(NAME)_VERSION_MINOR)
INCINSTDIR := $(INCDIR)/lib$(NAME)
INSTHEADERS := $(INSTHEADERS) $(HEADERS:%=$(SUBDIR)%)
all-$(CONFIG_STATIC): $(SUBDIR)$(LIBNAME) $(SUBDIR)lib$(FULLNAME).pc
all-$(CONFIG_SHARED): $(SUBDIR)$(SLIBNAME) $(SUBDIR)lib$(FULLNAME).pc
LIBOBJS := $(OBJS) $(SHLIBOBJS) $(STLIBOBJS) $(SUBDIR)%.h.o $(TESTOBJS)
$(LIBOBJS) $(LIBOBJS:.o=.s) $(LIBOBJS:.o=.i): CPPFLAGS += -DHAVE_AV_CONFIG_H
ifdef CONFIG_SHARED
# In case both shared libs and static libs are enabled, it can happen
# that a user might want to link e.g. libavformat statically, but
# libavcodec and the other libs dynamically. In this case
# libavformat won't be able to access libavcodec's internal symbols,
# so that they have to be duplicated into the archive just like
# for purely shared builds.
# Test programs are always statically linked against their library
# to be able to access their library's internals, even with shared builds.
# Yet linking against dependend libraries still uses dynamic linking.
# This means that we are in the scenario described above.
# In case only static libs are used, the linker will only use
# one of these copies; this depends on the duplicated object files
# containing exactly the same symbols.
OBJS += $(SHLIBOBJS)
endif
$(SUBDIR)$(LIBNAME): $(OBJS) $(STLIBOBJS)
$(RM) $@
$(AR) $(ARFLAGS) $(AR_O) $^
$(RANLIB) $@
install-headers: install-lib$(NAME)-headers install-lib$(NAME)-pkgconfig
install-libs-$(CONFIG_STATIC): install-lib$(NAME)-static
install-libs-$(CONFIG_SHARED): install-lib$(NAME)-shared
define RULES
$(TOOLS): THISLIB = $(FULLNAME:%=$(LD_LIB))
$(TESTPROGS): THISLIB = $(SUBDIR)$(LIBNAME)
$(LIBOBJS): CPPFLAGS += -DBUILDING_$(NAME)
$(TESTPROGS) $(TOOLS): %$(EXESUF): %.o
$$(LD) $(LDFLAGS) $(LDEXEFLAGS) $$(LD_O) $$(filter %.o,$$^) $$(THISLIB) $(FFEXTRALIBS) $$(EXTRALIBS-$$(*F)) $$(ELIBS)
$(SUBDIR)lib$(NAME).version: $(SUBDIR)version.h $(SUBDIR)version_major.h | $(SUBDIR)
$$(M) $$(SRC_PATH)/ffbuild/libversion.sh $(NAME) $$^ > $$@
$(SUBDIR)lib$(FULLNAME).pc: $(SUBDIR)version.h ffbuild/config.sh | $(SUBDIR)
$$(M) $$(SRC_PATH)/ffbuild/pkgconfig_generate.sh $(NAME) "$(DESC)"
$(SUBDIR)lib$(NAME).ver: $(SUBDIR)lib$(NAME).v $(OBJS)
$$(M)sed 's/MAJOR/$(lib$(NAME)_VERSION_MAJOR)/' $$< | $(VERSION_SCRIPT_POSTPROCESS_CMD) > $$@
$(SUBDIR)$(SLIBNAME): $(SUBDIR)$(SLIBNAME_WITH_MAJOR)
$(Q)cd ./$(SUBDIR) && $(LN_S) $(SLIBNAME_WITH_MAJOR) $(SLIBNAME)
$(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(OBJS) $(SHLIBOBJS) $(SLIBOBJS) $(SUBDIR)lib$(NAME).ver
$(SLIB_CREATE_DEF_CMD)
$$(LD) $(SHFLAGS) $(LDFLAGS) $(LDSOFLAGS) $$(LD_O) $$(filter %.o,$$^) $(FFEXTRALIBS)
$(SLIB_EXTRA_CMD)
ifdef SUBDIR
$(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(DEP_LIBS)
endif
clean::
$(RM) $(addprefix $(SUBDIR),$(CLEANFILES) $(CLEANSUFFIXES) $(LIBSUFFIXES)) \
$(CLEANSUFFIXES:%=$(SUBDIR)$(ARCH)/%) $(CLEANSUFFIXES:%=$(SUBDIR)tests/%)
install-lib$(NAME)-shared: $(SUBDIR)$(SLIBNAME)
$(Q)mkdir -p "$(SHLIBDIR)"
$$(INSTALL) -m 755 $$< "$(SHLIBDIR)/$(SLIB_INSTALL_NAME)"
$$(STRIP) "$(SHLIBDIR)/$(SLIB_INSTALL_NAME)"
$(Q)$(foreach F,$(SLIB_INSTALL_LINKS),(cd "$(SHLIBDIR)" && $(LN_S) $(SLIB_INSTALL_NAME) $(F));)
$(if $(SLIB_INSTALL_EXTRA_SHLIB),$$(INSTALL) -m 644 $(SLIB_INSTALL_EXTRA_SHLIB:%=$(SUBDIR)%) "$(SHLIBDIR)")
$(if $(SLIB_INSTALL_EXTRA_LIB),$(Q)mkdir -p "$(LIBDIR)")
$(if $(SLIB_INSTALL_EXTRA_LIB),$$(INSTALL) -m 644 $(SLIB_INSTALL_EXTRA_LIB:%=$(SUBDIR)%) "$(LIBDIR)")
install-lib$(NAME)-static: $(SUBDIR)$(LIBNAME)
$(Q)mkdir -p "$(LIBDIR)"
$$(INSTALL) -m 644 $$< "$(LIBDIR)"
$(LIB_INSTALL_EXTRA_CMD)
install-lib$(NAME)-headers: $(addprefix $(SUBDIR),$(HEADERS) $(BUILT_HEADERS))
$(Q)mkdir -p "$(INCINSTDIR)"
$$(INSTALL) -m 644 $$^ "$(INCINSTDIR)"
install-lib$(NAME)-pkgconfig: $(SUBDIR)lib$(FULLNAME).pc
$(Q)mkdir -p "$(PKGCONFIGDIR)"
$$(INSTALL) -m 644 $$^ "$(PKGCONFIGDIR)"
uninstall-libs::
-$(RM) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR)" \
"$(SHLIBDIR)/$(SLIBNAME)" \
"$(SHLIBDIR)/$(SLIBNAME_WITH_VERSION)"
-$(RM) $(SLIB_INSTALL_EXTRA_SHLIB:%="$(SHLIBDIR)/%")
-$(RM) $(SLIB_INSTALL_EXTRA_LIB:%="$(LIBDIR)/%")
-$(RM) "$(LIBDIR)/$(LIBNAME)"
uninstall-headers::
$(RM) $(addprefix "$(INCINSTDIR)/",$(HEADERS) $(BUILT_HEADERS))
-rmdir "$(INCINSTDIR)"
uninstall-pkgconfig::
$(RM) "$(PKGCONFIGDIR)/lib$(FULLNAME).pc"
endef
$(eval $(RULES))
$(TOOLS): $(DEP_LIBS) $(SUBDIR)$($(CONFIG_SHARED:yes=S)LIBNAME)
$(TESTPROGS): $(DEP_LIBS) $(SUBDIR)$(LIBNAME)
testprogs: $(TESTPROGS)