dobby_ios_build.sh

#!/bin/bash

SDK_VERSION="14.5"
TARGET_IOS_VERSION="14"
LLVM_PATH="$HOME/opt/llvm-15.0.6" # only llvm 15 worked for me

cd "$(dirname "$0")/dobby"
rm -rf build || true

export PATH="$LLVM_PATH/bin:$THEOS/toolchain/linux/iphone/bin:$PATH"

# build(arch)
function build() {
    local cmake_dir="./build/cmake-build-iphoneos-$1"

    # hardcoded path is to fix clang not reading __config_site 
    local SHARED_FLAGS="\
        -isystem $LLVM_PATH/include/x86_64-unknown-linux-gnu/c++/v1/ \
        -target $1-apple-ios${TARGET_IOS_VERSION} \
        -D TARGET_OS_SIMULATOR=0 \
    "

    cmake \
        -S . \
        -B $cmake_dir \
        -DCMAKE_SHARED_LINKER_FLAGS=" \
            -fuse-ld=$(which ld64.lld) \
            -Xlinker -arch -Xlinker $1 \
            -Xlinker -platform_version -Xlinker ios -Xlinker ${TARGET_IOS_VERSION} -Xlinker ${SDK_VERSION} \
            -Xlinker -dylib \
            -Xlinker -syslibroot -Xlinker $THEOS/sdks/iPhoneOS${SDK_VERSION}.sdk \
        " \
        -DCMAKE_C_COMPILER=clang \
        -DCMAKE_C_FLAGS="${SHARED_FLAGS}" \
        -DCMAKE_CXX_COMPILER=clang++ \
        -DCMAKE_CXX_FLAGS="${SHARED_FLAGS}" \
        -DCMAKE_SYSTEM_NAME=iOS \
        -DCMAKE_SYSTEM_PROCESSOR=$1 \
        -DCMAKE_OSX_ARCHITECTURES=$1 \
        -DCMAKE_OSX_DEPLOYMENT_TARGET="${TARGET_IOS_VERSION}" \
        -DCMAKE_OSX_SYSROOT=$THEOS/sdks/iPhoneOS${SDK_VERSION}.sdk \
        -DCMAKE_BUILD_TYPE=Release \
        -DDOBBY_GENERATE_SHARED=ON

    (cd $cmake_dir && gmake -j8 dobby)
}

build "arm64"
build "arm64e"