0fcd2ca7b2
This includes things like CFURLGetFSRef which are not part of the swift-corelibs CoreFoundation.
62 lines
3.4 KiB
Nix
62 lines
3.4 KiB
Nix
{ CF, apple_sdk, osx_private_sdk }:
|
|
|
|
# cf-private is a bit weird, but boils down to CF with a weird setup-hook that
|
|
# makes a build link against the system CoreFoundation rather than our pure one.
|
|
# The reason it exists is that although our CF headers and build are pretty legit
|
|
# now, the underlying runtime is quite different. Apple's in a bit of flux around CF
|
|
# right now, and support three different backends for it: swift, "C", and an ObjC
|
|
# one. The former two can be built from public sources, but the ObjC one isn't really
|
|
# public. Unfortunately, it's also one of the core underpinnings of a lot of Mac-
|
|
# specific behavior, and defines a lot of symbols that some Objective C apps depend
|
|
# on, even though one might expect those symbols to derive from Foundation. So if
|
|
# your app relies on NSArray and several other basic ObjC types, it turns out that
|
|
# because of their magic "toll-free bridging" support, the symbols for those types
|
|
# live in CoreFoundation with an ObjC runtime. And because that isn't public, we have
|
|
# this hack in place to let people link properly anyway. Phew!
|
|
#
|
|
# This can be revisited if Apple ever decide to release the ObjC backend in a publicly
|
|
# buildable form.
|
|
#
|
|
# This doesn't really need to rebuild CF, but it's cheap, and adding a setup hook to
|
|
# an existing package was annoying. We need a buildEnv that knows how to add those
|
|
CF.overrideAttrs (orig: {
|
|
# PLEASE if you add things to this derivation, explain in reasonable detail why
|
|
# you're adding them and when the workaround can go away. This whole derivation is
|
|
# a workaround and if you don't explain what you're working around, it makes it
|
|
# very hard for people to clean it up later.
|
|
|
|
name = "${orig.name}-private";
|
|
setupHook = ./setup-hook.sh;
|
|
|
|
# TODO: consider re-adding https://github.com/NixOS/nixpkgs/blob/master/pkgs/os-specific/darwin/apple-source-releases/CF/cf-bridging.patch
|
|
# once the missing headers are in and see if that fixes all need for this.
|
|
|
|
# This can go away once https://bugs.swift.org/browse/SR-8741 happens, which is
|
|
# looking more likely these days with the friendly people at Apple! We only need
|
|
# the header because the setup hook takes care of linking us against a version
|
|
# of the framework with the functionality built into it. The main user I know of
|
|
# this is watchman, who can almost certainly switch to the pure CF once the header
|
|
# and functionality is merged in.
|
|
installPhase = orig.installPhase + ''
|
|
# Copy or overwrite private headers, some of these might already
|
|
# exist in CF but the private versions have more information.
|
|
basepath="Library/Frameworks/CoreFoundation.framework/Headers"
|
|
cp -Lfv --no-preserve mode ${osx_private_sdk}/include/CoreFoundationPrivateHeaders/* "$out/$basepath"
|
|
|
|
# Append the include at top level or nobody will notice the header we're about to add
|
|
sed -i '/CFNotificationCenter.h/a #include <CoreFoundation/CFFileDescriptor.h>' \
|
|
"$out/$basepath/CoreFoundation.h"
|
|
|
|
cp ${apple_sdk.frameworks.CoreFoundation}/$basepath/CFFileDescriptor.h $out/$basepath/CFFileDescriptor.h
|
|
'' +
|
|
# This one is less likely to go away, but I'll mention it anyway. The issue is at
|
|
# https://bugs.swift.org/browse/SR-8744, and the main user I know of is qtbase
|
|
''
|
|
path="$basepath/CFURLEnumerator.h"
|
|
sed -i '/CFNotificationCenter.h/a #include <CoreFoundation/CFURLEnumerator.h>' \
|
|
"$out/$basepath/CoreFoundation.h"
|
|
|
|
cp ${apple_sdk.frameworks.CoreFoundation}/$path $out/$path
|
|
'';
|
|
})
|