Cross Compiling for macOS on Linux with Darling

Status: Builds in Darling environment and works in macOS.

1. Install darling.

# Arch Linux
yay -S darling-git

2. Download Command Line Tools for Xcode (12.4) from Apple Developer portal.

3. Install Command Line Tools in darling shell.

$ darling shell
Darling [.]$ hdiutil attach /path/to/Command_Line_tools_for_Xcode_12.4.dmg
Darling [.]$ cd /Volumes/Command_Line_Tools_for_Xcode_12.4/
Darling [.]$ /usr/bin/installer -pkg Command\ Line\ Tools.pkg -target /

4. Install brew and dependencies in Darling environment.

pip3 install scons

5. Clone repo

git clone https://github.com/hansemro/GDClip

6. Retrieve submodules

cd GDClip && make prep

7. Build with make PLATFORM=osx inside darling shell (parallelize build by setting NPROC variable)

8. Retrieve built library at ./bin/libgdclip.dylib

Darling shell hangs

Partial solution: In a new shell, kill darling with darling shutdown and try again.