Compile Godot for iOS easily (from macOS)

build_iphone.sh

#!/bin/sh -x

# This script must be run from a macOS machine with Xcode installed.

# Place this script at the root of your Godot Git clone.
# CC0 1.0 Universal

# Number of CPU threads to use for compilation (no "nproc" on macOS...)
nproc=4

# Clean all build files before building (due to a bug causing SCons to become stuck)
# Install GNU find using Homebrew: `brew install findutils`
gfind -name "*.o" -o -name "*.a" -delete

# Build 64-bit Godot for iOS, in debug and release mode
scons p=iphone -j$nproc verbose=no tools=no arch=arm64 target=release_debug
scons p=iphone -j$nproc verbose=no tools=no arch=arm64 target=release

# Build 32-bit Godot for iOS, in debug and release mode
scons p=iphone -j$nproc verbose=no tools=no arch=armv7 target=release_debug
scons p=iphone -j$nproc verbose=no tools=no arch=armv7 target=release

# Create a fat binary (contains both 32-bit and 64-bit executables in a single binary)
cd bin/
strip *iphone*
lipo -create -arch armv7 godot.iphone.opt.debug.arm -arch arm64 godot.iphone.opt.debug.arm64 -output godot_ios_xcode/godot_debug.iphone
lipo -create -arch armv7 godot.iphone.opt.arm -arch arm64 godot.iphone.opt.arm64 -output godot_ios_xcode/godot_opt.iphone

# Create .zip of export template and copy it to Godot's templates directory
zip -r9 GodotiOSXCode.zip godot_ios_xcode/
cp GodotiOSXCode.zip ~/.godot/templates/