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#####################################################################
# STUB LIBRARIES
# this is a makefile snippet (to be included by the main Makefile
# it depends on pd-lib-builder,...
# stub-libraries help with weak linking against some optional libraries
# - dylink against their stubbed library
# - can be dlopen()ed
# - have a well-known name and path
# - stub-libraries provide the addresses of (some) symbols in the stubbed library
ifneq ($(filter %.$(shared.extension), .$(extension)), )
# $(extension) already ends with $(shared.extension), no need to duplicate it
shared.fullextension = $(extension)
else
shared.fullextension = $(extension).$(shared.extension)
endif
c.flags += -DSHARED_LIBRARY_EXTENSION='"$(shared.fullextension)"'
lib$(lib.name)Stub_%.$(shared.fullextension): stub/%.$(object.extension)
$(info ++++ info: linking stub library $@: $<, $(c.ldlibs), $(shared.ldlibs), $(stub.ldlibs))
$(compile-c) $(shared.ldflags) -o $@ $< $(c.ldlibs) $(shared.ldlibs) $(stub.ldlibs)
# sometimes dependencies for the stub libraries are not picked up correctly,
# and the stub libraries are built with the default shared-library dependencies
# (leaving out our stub object!)
# listing each stub-library explicitly, seems to fix this... ¯\_(ツ)_/¯
# I don't know exactly when it happens;
# at least I've seen this for
# - Windows/.dll
# - Linux/.Linux-amd64.32.so
# however NOT for
# - Linux/.pd_linux.so
lib$(lib.name)Stub_fftw.$(extension).$(shared.extension): stub/fftw.$(object.extension)
lib$(lib.name)Stub_fftwf.$(extension).$(shared.extension): stub/fftwf.$(object.extension)
lib$(lib.name)Stub_gsl.$(extension).$(shared.extension): stub/gsl.$(object.extension)
lib$(lib.name)Stub_sndfile.$(extension).$(shared.extension): stub/sndfile.$(object.extension)
lib$(lib.name)Stub_fftw.$(extension): stub/fftw.$(object.extension)
lib$(lib.name)Stub_fftwf.$(extension): stub/fftwf.$(object.extension)
lib$(lib.name)Stub_gsl.$(extension): stub/gsl.$(object.extension)
lib$(lib.name)Stub_sndfile.$(extension): stub/sndfile.$(object.extension)
lib$(lib.name)Stub_fftw.$(shared.fullextension): stub.ldlibs = $(FFTW_LIBS)
lib$(lib.name)Stub_fftwf.$(shared.fullextension): stub.ldlibs = $(FFTWF_LIBS)
lib$(lib.name)Stub_sndfile.$(shared.fullextension): stub.ldlibs = $(SNDFILE_LIBS)
lib$(lib.name)Stub_gsl.$(shared.fullextension): stub.ldlibs = $(GSL_LIBS)
## on macOS this is needed to properly set the install_name.
## on Linux, it is used to set the soname
## (on Windows it doesn't do anythng, at least if the correct linking rule is invoked)
lib$(lib.name)Stub_fftw.$(shared.fullextension): shared.lib = lib$(lib.name)Stub_fftw.$(shared.fullextension)
lib$(lib.name)Stub_fftwf.$(shared.fullextension): shared.lib = lib$(lib.name)Stub_fftwf.$(shared.fullextension)
lib$(lib.name)Stub_sndfile.$(shared.fullextension): shared.lib = lib$(lib.name)Stub_sndfile.$(shared.fullextension)
lib$(lib.name)Stub_gsl.$(shared.fullextension): shared.lib = lib$(lib.name)Stub_gsl.$(shared.fullextension)
stub.libs =
stub.libs += lib$(lib.name)Stub_fftw.$(shared.fullextension)
stub.libs += lib$(lib.name)Stub_fftwf.$(shared.fullextension)
stub.libs += lib$(lib.name)Stub_sndfile.$(shared.fullextension)
stub.libs += lib$(lib.name)Stub_gsl.$(shared.fullextension)
executables += $(stub.libs)
.PHONY: stubs
stubs: $(stub.libs)
post: $(stub.libs)
.PHONY: clean.stublibs
clean: clean.stublibs
clean.stublibs:
rm -f $(stub.libs)
rm -f $(stub.libs:%.$(shared.fullextension)=%.$(object.extension))
rm -f $(stub.libs:lib$(lib.name)Stub_%.$(shared.fullextension)=stub/%.$(object.extension))
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