Ok, Thanks! I guess I have to get better at reading error messages ☺
From: Chuck Atkins <chuck.atk...@kitware.com> Date: Monday, October 15, 2018 at 12:19 PM To: Rob Boehne <r...@datalogics.com> Cc: CMake Mail List <cmake@cmake.org> Subject: Re: [CMake] Building arguments to target_comple_definitions() Hi Rob, How would one set a variable containing multiple definitions to be passed to target_compile_definitions() ? The example you gave works (adjusting for typos, PIC, and adding visibility specifier): ... set(COMMON_DEFINITIONS SOME_DEFINE_1 SOME_DEFINE_2 SOME_DEFINE_3) ... target_compile_definitions(CHUNK1 PRIVATE ${COMMON_DEFINITIONS} CHUNK1_STUFF CHUNK_NAME=\"One\") target_compile_definitions(CHUNK2 PRIVATE ${COMMON_DEFINITIONS} CHUNK2_STUFF CHUNK_NAME=\"Two\") target_compile_definitions(FooBar PRIVATE ${COMMON_DEFINITIONS}) ... results in the following: ... /usr/bin/c++ -DCHUNK1_STUFF -DCHUNK_NAME=\"One\" -DSOME_DEFINE_1 -DSOME_DEFINE_2 -DSOME_DEFINE_3 -fPIC -o CMakeFiles/CHUNK1.dir/chunk_one.cpp.o -c /home/chuck/Code/tmp/source/chunk_one.cpp ... /usr/bin/c++ -DCHUNK2_STUFF -DCHUNK_NAME=\"Two\" -DSOME_DEFINE_1 -DSOME_DEFINE_2 -DSOME_DEFINE_3 -fPIC -o CMakeFiles/CHUNK2.dir/chunk_two.cpp.o -c /home/chuck/Code/tmp/source/chunk_two.cpp ... /usr/bin/c++ -DFooBar_EXPORTS -DSOME_DEFINE_1 -DSOME_DEFINE_2 -DSOME_DEFINE_3 -fPIC -o CMakeFiles/FooBar.dir/foobar.cpp.o -c /home/chuck/Code/tmp/source/foobar.cpp ... Here you can see the common definitions make it to all targets. - Chuck
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