How to build a CMake project using Cheerp

CMake projects can be compiled with Cheerp by passing a single additional command-line flag to cmake.

A CMake toolchain files are provided in the $CHEERP/share/cmake/Modules/ directory, where the CHEERP environment variable is set to the path of your Cheerp installation.

For example:

  • On Linux: export CHEERP=/opt/cheerp
  • On macOS: export CHEERP=/Applications/cheerp
  • On Windows: set CHEERP=C:\cheerp

Compiling to WebAssembly

To compile with -target cheerp-wasm (default, recommended), use CheerpWasmToolchain.cmake.

Terminal window
cmake -DCMAKE_TOOLCHAIN_FILE=$CHEERP/share/cmake/Modules/CheerpWasmToolchain.cmake .

Compiling to JavaScript

To compile with -target cheerp, use CheerpToolchain.cmake.

Terminal window
cmake -DCMAKE_TOOLCHAIN_FILE=$CHEERP/share/cmake/Modules/CheerpToolchain.cmake .


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