# CMake toolchain file for building ucode for WebAssembly (wasm32) with
   # emscripten.
   #
   #   cmake -B build-wasm -DCMAKE_TOOLCHAIN_FILE=cmake/emscripten.cmake
   #
   # Requires an activated emsdk environment (emcc on PATH). Produces
   # libucode.a and ucode-modules.a for static linking into an embedder's
   # executable; see the UCODE_WASM section of CMakeLists.txt.
   #
  # Note: the dependency setup (json-c, libmd) cannot live in this file --
  # toolchain files are re-included by every try_compile() probe build --
  # so CMakeLists.txt pulls in cmake/emscripten-deps.cmake when it detects
  # the emscripten compiler.
  
  set(CMAKE_SYSTEM_NAME Generic)
  set(CMAKE_SYSTEM_PROCESSOR wasm32)
  
  set(CMAKE_C_COMPILER emcc)
  set(CMAKE_CXX_COMPILER em++)
  set(CMAKE_ASM_COMPILER emcc)
  
  set(CMAKE_C_COMPILER_WORKS TRUE)
  set(CMAKE_CXX_COMPILER_WORKS TRUE)
  
  # Declare the emscripten build to CMakeLists.txt. Some CMake versions
  # detect emcc as plain "Clang" (no Emscripten branch in the compiler ID
  # source), so do not rely on CMAKE_C_COMPILER_ID alone. An explicit
  # -DUCODE_WASM=... on the command line takes precedence. (Cache writes
  # in this file do not leak into try_compile() probe builds, which use
  # their own cache.)
  if(NOT DEFINED CACHE{UCODE_WASM})
    set(UCODE_WASM ON CACHE BOOL "Build static libraries for wasm32" FORCE)
  endif()

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