#!/bin/sh
MYPATH="`dirname \"$0\"`"
SYSROOT="`realpath \"$MYPATH/../sysroot\"`"
LLVMDIR="`realpath \"$MYPATH/../../../llvm-project\"`"

#libcxx needs this one trivial file to autodetect sendfile(2), which musl does support
mkdir -p "$SYSROOT/include/linux"
cp -n "/usr/include/linux/version.h" "$SYSROOT/include/linux"

rm -rf build2
mkdir build2
cd build2
export CFLAGS="-mabi=ms -mcmodel=large -mstack-protector-guard=global -fno-use-cxa-atexit"
export CXXFLAGS="-mabi=ms -mcmodel=large -mstack-protector-guard=global -fno-use-cxa-atexit"
cmake \
	-DCMAKE_C_COMPILER="$SYSROOT/bin/musl-gcc" \
	-DCMAKE_CXX_COMPILER="$SYSROOT/bin/musl-gcc" \
	-DLIBCXX_ENABLE_SHARED=OFF \
	-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF \
	-DLIBCXX_CXX_ABI="libcxxabi" \
	-DLIBCXX_CXX_ABI_INCLUDE_PATHS="$LLVMDIR/libcxxabi/include" \
	-DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=ON \
	-DLIBCXX_ENABLE_EXCEPTIONS=ON \
	-DLIBCXX_ENABLE_RTTI=ON \
	-DLIBCXX_ENABLE_THREADS=OFF \
	-DLIBCXX_HAS_MUSL_LIBC=ON \
	-DLIBCXX_USE_COMPILER_RT=ON \
	-DLIBCXX_INCLUDE_TESTS=OFF \
	-DLIBCXX_INCLUDE_BENCHMARKS=OFF \
	-DLIBCXX_STATICALLY_LINK_ABI_IN_STATIC_LIBRARY=OFF \
	-DCMAKE_INSTALL_PREFIX="$SYSROOT" \
	-DCMAKE_AR="/usr/bin/gcc-ar" \
	-DCMAKE_RANLIB="/usr/bin/gcc-ranlib" \
	../../../../llvm-project/libcxx