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Cheerp: A C++ compiler for the Web

This repo is outdated. Please refer to https://github.com/leaningtech/cheerp-compiler to build libcxxabi.

Please report bugs on launchpad: https://bugs.launchpad.net/cheerp

Cheerp libcxxabi build instructions

Building the cheerp-enabled libcxx (C++ standard library) requires having the cheerp compiler already installed in /opt/cheerp. It also require libcxx-cheerp headers.

git clone <libcxx-cheerp-repo> libcxx
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=/opt/cheerp -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=/opt/cheerp/share/cmake/Modules/CheerpToolchain.cmake -DCHEERP_LINEAR_OUTPUT=asmjs -DLIBCXXABI_ENABLE_SHARED=OFF -DLIBCXXABI_ENABLE_ASSERTIONS=OFF -DLIBCXXABI_LIBCXX_PATH=$PWD/../libcxx/ -DLIBCXXABI_LIBCXX_INCLUDES=$PWD/../libcxx/include -DLIBCXXABI_ENABLE_THREADS=0 -DLLVM_CONFIG=/opt/cheerp/bin/llvm-config ..
make
make install

Cheerp libcxxabi build instructions (asm.js version)

It is recommended to create another build directory:

mkdir build_asmjs
cd build_asmjs

The rest of the instructions are the same, except for the cmake toolchain file, which is CheerpWasmToolchain.cmake:

cmake -DCMAKE_INSTALL_PREFIX=/opt/cheerp -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=/opt/cheerp/share/cmake/Modules/CheerpWasmToolchain.cmake -DCHEERP_LINEAR_OUTPUT=asmjs -DLIBCXXABI_ENABLE_SHARED=OFF -DLIBCXXABI_ENABLE_ASSERTIONS=OFF -DLIBCXXABI_LIBCXX_PATH=$PWD/../libcxx/ -DLIBCXXABI_LIBCXX_INCLUDES=$PWD/../libcxx/include -DLIBCXXABI_ENABLE_THREADS=0 -DLLVM_CONFIG=/opt/cheerp/bin/llvm-config ..
make
make install