apple-sdk: propagate the `darwin.libutil` library

The SDK provides this without headers and apparently some things
try to link to it. This should help increase compatibility with the
native toolchain.

Emily 877e3454 17cc7a6f

Changed files
+2
pkgs
by-name
ap
apple-sdk
+2
pkgs/by-name/ap/apple-sdk/common/propagate-inputs.nix
···
libiconv
darwin.libresolv
darwin.libsbuf
+
# Shipped with the SDK only as a library with no headers
+
(lib.getLib darwin.libutil)
# Required by some SDK headers
cupsHeaders
]