# Test that declare_dependency(objects: ...) fixes issues with duplicated # objects in the final link line, thanks to deduplication of dependencies. # The commented declare_dependency() invocation using link_whole instead # fails thusly: # # ar csrDT libbar.a libfoo.a.p/foo.c.o libbar.a.p/bar.c.o # ar csrDT libfoo.a libfoo.a.p/foo.c.o # cc -o prog prog.p/prog.c.o -Wl,--as-needed -Wl,--no-undefined -Wl,--whole-archive -Wl,--start-group libfoo.a libbar.a -Wl,--end-group -Wl,--no-whole-archive # /usr/bin/ld: libfoo.a.p/foo.c.o: in function `foo': # ../foo.c:3: multiple definition of `foo'; libfoo.a.p/foo.c.o:../foo.c:3: first defined here project('Transitive declare_dependency(objects)', 'c') libfoo = static_library('foo', 'foo.c') #foo = declare_dependency(link_whole: libfoo) foo = declare_dependency(objects: libfoo.extract_all_objects(recursive: true)) libbar = static_library('bar', 'bar.c', dependencies: foo) #bar = declare_dependency(link_whole: libbar, dependencies: foo) bar = declare_dependency(objects: libbar.extract_all_objects(recursive: true), dependencies: foo) executable('prog', sources: files('prog.c'), dependencies: [foo, bar])