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What happens if I push all of nixpkgs
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051{ lib, stdenv, fetchFromGitHub, openmp ? null,}:
stdenv.mkDerivation (finalAttrs: { pname = "b2sum"; version = "20190724";
src = fetchFromGitHub { owner = "BLAKE2"; repo = "BLAKE2"; rev = finalAttrs.version; sha256 = "sha256-6BVl3Rh+CRPQq3QxcUlk5ArvjIj/IcPCA2/Ok0Zu7UI="; };
# Use the generic C implementation rather than the SSE optimised version on non-x86 platforms postPatch = lib.optionalString (!stdenv.hostPlatform.isx86) '' substituteInPlace makefile \ --replace "#FILES=b2sum.c ../ref/" "FILES=b2sum.c ../ref/" \ --replace "FILES=b2sum.c ../sse/" "#FILES=b2sum.c ../sse/" '';
sourceRoot = "${finalAttrs.src.name}/b2sum";
buildInputs = [ openmp ];
buildFlags = [ (lib.optional (openmp == null) "NO_OPENMP=1") ];
# clang builds require at least C99 or the build fails with: # error: unknown type name 'inline' env.NIX_CFLAGS_COMPILE = "-std=c99";
installFlags = [ "PREFIX=$(out)" ];
meta = with lib; { description = "B2sum utility is similar to the md5sum or shasum utilities but for BLAKE2"; mainProgram = "b2sum"; homepage = "https://blake2.net"; license = with licenses; [ asl20 cc0 openssl ]; maintainers = with maintainers; [ kirelagin ]; platforms = platforms.unix; };})