CMake: use stdint.h if available #34
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mmicko
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yosys builds abc with stdint.h depending on the config for legacy reasons. For Yosys to be comfortably, equivalently built with nix, with abc as an external package (ABCEXTERNAL), it is easier to use the current
abc-verifierpackage in nixpkgs, which uses CMake.Therefore, we should let stdint.h be used in abc whenever CMake knows it's available. That's what this PR does.