anchor.diff:          make -j$NIX_BUILD_CORES -f posix.mak BUILD=release ENABLE_RELEASE=1 PIC=1 INSTALL_DIR=$out DMD=${pathToDmd}
           cd ../phobos
           echo ${tzdata}/share/zoneinfo/ > TZDatabaseDirFile
  -        make -j$NIX_BUILD_CORES -f posix.mak BUILD=release ENABLE_RELEASE=1 PIC=1 INSTALL_DIR=$out DMD=${pathToDmd} DFLAGS="-version=TZDatabaseDir -J$(pwd)"
  +        echo ${curl.out}/lib/libcurl.so > LibcurlPathFile
  +        make -j$NIX_BUILD_CORES -f posix.mak BUILD=release ENABLE_RELEASE=1 PIC=1 INSTALL_DIR=$out DMD=${pathToDmd} DFLAGS="-version=TZDatabaseDir -version=LibcurlPath -J$(pwd)"
           cd ..
       '';
   
  
positive.code: 
      checkPhase = ''
          cd dmd
          make -j$NIX_BUILD_CORES -C test -f Makefile PIC=1 DMD=${pathToDmd} BUILD=release SHARED=0 SHELL=$SHELL
          cd ../druntime
          make -j$NIX_BUILD_CORES -f posix.mak unittest PIC=1 DMD=${pathToDmd} BUILD=release
          cd ..
  
negative.code: { stdenv, fetchFromGitHub
  , makeWrapper, unzip, which
  , curl, tzdata, gdb, darwin, git
  , callPackage, targetPackages, ldc
  , version ? "2.084.0"
  , dmdSha256 ? "1v61spdamncl8c1bzjc19b03p4jl0ih5zq9b7cqsy9ix7qaxmikf"
  , druntimeSha256 ? "0vp414j6s11l9s54v81np49mv60ywmd7nnk41idkbwrq0nz4sfrq"
  , phobosSha256 ? "1wp7z1x299b0w9ny1ah2wrfhrs05vc4bk51csgw9774l3dqcnv53"
  }:
  
  let
  