{ stdenv, lib, fetchFromGitHub, fetchpatch, cmake, gflags, staticOnly ? stdenv.hostPlatform.isStatic, }: stdenv.mkDerivation rec { pname = "crc32c"; version = "1.1.2"; src = fetchFromGitHub { owner = "google"; repo = "crc32c"; tag = version; sha256 = "0c383p7vkfq9rblww6mqxz8sygycyl27rr0j3bzb8l8ga71710ii"; fetchSubmodules = true; }; patches = [ (fetchpatch { name = "crc32c-fix-cmake-4.patch"; url = "https://github.com/google/crc32c/commit/2bbb3be42e20a0e6c0f7b39dc07dc863d9ffbc07.patch"; excludes = [ "third_party/*" ]; hash = "sha256-XYH0Mwvmf8RkXscVo6pAejTbRmVl9tY+lpp1sqbNXa0="; }) ]; nativeBuildInputs = [ cmake ]; buildInputs = [ gflags ]; env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isAarch64 "-march=armv8-a+crc" # TODO: probably fixed for version > 1.1.2 + lib.optionalString stdenv.cc.isClang " -Wno-error=character-conversion"; cmakeFlags = [ "-DCRC32C_INSTALL=1" "-DCRC32C_BUILD_TESTS=1" "-DCRC32C_BUILD_BENCHMARKS=0" "-DCRC32C_USE_GLOG=0" "-DINSTALL_GTEST=0" "-DBUILD_SHARED_LIBS=${if staticOnly then "0" else "1"}" ]; doCheck = false; doInstallCheck = true; installCheckPhase = '' runHook preInstallCheck ctest runHook postInstallCheck ''; postFixup = '' # fix bogus include paths for f in $(find $out/lib/cmake -name '*.cmake'); do substituteInPlace "$f" --replace "\''${_IMPORT_PREFIX}/$out/include" "\''${_IMPORT_PREFIX}/include" done ''; meta = with lib; { homepage = "https://github.com/google/crc32c"; description = "CRC32C implementation with support for CPU-specific acceleration instructions"; license = with licenses; [ bsd3 ]; maintainers = with maintainers; [ cpcloud ]; }; }