bintools-wrapper: Define fallback default emulation

      set +u

    '';

  emulation = let

    fmt =

      /**/ if targetPlatform.isDarwin  then "mach-o"

      else if targetPlatform.isWindows then "pe"

      else "elf" + toString targetPlatform.parsed.cpu.bits;

    endianPrefix = if targetPlatform.isBigEndian then "big" else "little";

    arch =

      /**/ if targetPlatform.isAarch64 then endianPrefix + "aarch64"

      else if targetPlatform.isArm     then endianPrefix + "arm"

      else if targetPlatform.isx86_64  then "x86-64"

      else if targetPlatform.isi686    then "i386"

      else throw "unknown emulation for platform: " + targetPlatform.config;

    in targetPlatform.platform.bfdEmulation or (fmt + "-" + arch);

  propagatedBuildInputs = extraPackages;

  setupHook = ./setup-hook.sh;

extraAfter+=($NIX_@infixSalt@_LDFLAGS_AFTER)

# Specify the target emulation if nothing is passed in ("-m" overrides this

# environment variable). Ensures we never blindly fallback on targeting the host

# platform.

: ${LDEMULATION:=@emulation@}

# Three tasks:

#

#   1. Find all -L... switches for rpath