I'm attempting to use a generator expression to conditionally add compile options. No problem if it is a single option, but I can't figure out how to manage multiple options (in a single command).
For example, this works: add_compile_options($<$<COMPILE_LANGUAGE:C>-Wall>) As does this: add_compile_options(-Wall -Wextra) But not this: add_compile_options($<$<COMPILE_LANGUAGE:C>-Wall -Wextra>) Nor this: add_compile_options($<$<COMPILE_LANGUAGE:C>"-Wall -Wextra">) Or any other variation I could think of. Either the space breaks the generator expression, or I get a quoted version of the options that the compiler sees as a single "option" it doesn't understand. Is there some way of doing this? PS: I'm trying to avoid using CMAKE_C_FLAGS. My understanding is that variable is meant for the end user's use. Am I mistaken about that?
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