#!/bin/sh

NAME="wasi-compiler-rt"
DESC="WASI LLVM compiler runtime"

MAKEDEPS="cmake "
DEPS="musl "

PKG_VER=13.0.1
wasi_sdk_ver=14

SOURCE="https://github.com/WebAssembly/wasi-sdk/archive/refs/tags/wasi-sdk-$wasi_sdk_ver.tar.gz"
ADDITIONAL="https://github.com/llvm/llvm-project/releases/download/llvmorg-$PKG_VER/compiler-rt-$PKG_VER.src.tar.xz"

prepare () {
    tar xf compiler-rt-$PKG_VER.src.tar.xz
    mkdir -p wasi-compiler-rt
    mv compiler-rt-$PKG_VER.src wasi-compiler-rt/compiler-rt
	mv wasi-sdk.cmake wasi-compiler-rt
	mv cmake wasi-compiler-rt

}

build () {
    cd wasi-compiler-rt
    mkdir build
    cmake -B build \
        -DCMAKE_BUILD_TYPE=MinSizeRel \
		-DCMAKE_MODULE_PATH=$BUILD_ROOT/wasi-compiler-rt/cmake \
		-DCMAKE_TOOLCHAIN_FILE=$BUILD_ROOT/wasi-compiler-rt/wasi-sdk.cmake \
		-DCMAKE_C_COMPILER_WORKS=ON \
		-DCOMPILER_RT_BAREMETAL_BUILD=ON \
		-DCOMPILER_RT_INCLUDE_TESTS=OFF \
		-DCOMPILER_RT_HAS_FPIC_FLAG=OFF \
		-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON \
		-DCOMPILER_RT_OS_DIR=wasi \
		-DWASI_SDK_PREFIX=/usr \
		-DCMAKE_INSTALL_PREFIX=/usr/lib/clang/$PKG_VER/ \
        compiler-rt/lib/builtins
	cmake --build build
}

package () {
	DESTDIR="$PKG_DEST" cmake --install build
}