nixpkgs/pkgs/build-support/wrapper-common/darwin-sdk-setup.bash
Emily 9142a07030 {bintools-wrapper,cc-wrapper}: factor out Darwin SDK logic
This reduces code duplication, makes the SDK variables available
earlier in the wrappers, and makes the behaviour between the two
wrappers more consistent.
2024-10-26 01:03:16 +01:00

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