{fetchFromGitHub, libgit2_0_27, ...}:

libgit2_0_27.overrideAttrs (oldAttrs: rec {
  cmakeFlags = oldAttrs.cmakeFlags ++ [
    "-DUSE_BUNDLED_ZLIB=ON"
    "-DUSE_ICONV=OFF"
    "-DBUILD_CLAR=OFF"
    "-DUSE_SSH=OFF"
    "-DUSE_HTTPS=OFF"
    "-DBUILD_SHARED_LIBS=OFF"
    "-DUSE_EXT_HTTP_PARSER=OFF"
  ];
  src = fetchFromGitHub {
    owner = "romkatv";
    repo = "libgit2";
    rev = "aab6c56e6766fa752bef00c745067d875925fc89";
    sha256 = "1yqqhpi5xi6s86411sixw4yq5c6n2v8pdh447c8b7q5lfc089lvl";
  };
})