how to build the viennats webassembly fork

1. get & build LLVM_WASM_BACKEND

->

2. get & configure emscripten

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3. build boost for wasm

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4. build vtk for wasm

->

5. compile viennats webassembly

export VIENNATS_BASE_DIR=/home/manstetten/github_hpcwasm/viennats-dev
export VIENNATS_WEBAPP_DIR=/home/manstetten/github_hpcwasm/viennats-webapp

# for emscripten
export HPCWASM_BASE_DIR=/home/manstetten/ProgramsDev/hpcwasm
export HPCWASM_BASE_DIR_EMSDK=$HPCWASM_BASE_DIR/emsdk
export EM_CONFIG=$HPCWASM_BASE_DIR_EMSDK/.emscripten
source $HPCWASM_BASE_DIR_EMSDK/emsdk_env.sh

mkdir -p $VIENNATS_BASE_DIR/buildwasm
cd $VIENNATS_BASE_DIR/buildwasm

emcmake cmake -DBUILD_WASM=ON -DCMAKE_INSTALL_PREFIX=$VIENNATS_WEBAPP_DIR/src/assets/buildwasm/ ..

6. compile viennats (build)

mkdir -p $VIENNATS_BASE_DIR/build
cd $VIENNATS_BASE_DIR/build

cmake -DBUILD_WASM=OFF ..