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Why do we pass this as a configure flag? Why not
NIX_CFLAGS_COMPILE
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@edolstra It could work either way, but I think this is a bit nicer because it documents how one would do things without a cc-wrapper on other platforms.
I generally think of the cc-wrapper vars a last sort, and it being better to leverage a project's build system than sneak behind its back.
I opened emil-e/rapidcheck#302 in hope that rapidcheck would be OK with having a pkg-config file, and then all this can just go away.