pkgs/build-support/wrapper-common/darwin-sdk-setup.bash

   1 accumulateRoles
   2
   3 # Only set up `DEVELOPER_DIR` if a default darwin min version is set,
   4 # which is a signal that we're targetting darwin.
   5 if [[ "@darwinMinVersion@" ]]; then
   6     # `DEVELOPER_DIR` is used to dynamically locate libSystem (and the SDK frameworks) based on the SDK at that path.
   7     mangleVarSingle DEVELOPER_DIR ${role_suffixes[@]+"${role_suffixes[@]}"}
   8
   9     # Allow wrapped compilers to do something useful when no `DEVELOPER_DIR` is set, which can happen when
  10     # the compiler is run outside of a stdenv or intentionally in an environment with no environment variables set.
  11     export DEVELOPER_DIR=${DEVELOPER_DIR_@suffixSalt@:-@fallback_sdk@}
  12
  13     # xcbuild needs `SDKROOT` to be the name of the SDK, which it sets in its own wrapper,
  14     # but compilers expect it to point to the absolute path.
  15     export SDKROOT="$DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk"
  16 fi