Add Windows Emscripten build of xeus-cpp to ci

Author: mcbarton

.github/workflows/emscripten.yml

@@ -745,7 +745,7 @@ jobs:
         .\emsdk\emsdk_env.ps1
         $env:PWD_DIR= $PWD.Path
         $env:SYSROOT_PATH="$env:EMSDK/upstream/emscripten/cache/sysroot"
-        $env:PREFIX="%CONDA_PREFIX%/envs/CppInterOp-wasm"
+        $env:PREFIX="$env:CONDA_PREFIX/envs/CppInterOp-wasm"
         $env:CMAKE_PREFIX_PATH=$env:PREFIX
         $env:CMAKE_SYSTEM_PREFIX_PATH=$env:PREFIX
         
@@ -902,7 +902,7 @@ jobs:
         }
         emmake make -j ${{ env.ncpus }} check-cppinterop
 
-    - name: Build xeus-cpp
+    - name: Build xeus-cpp on Unix Systems
       if: ${{ runner.os != 'windows' }}
       shell: bash -l {0}
       run: |
@@ -926,7 +926,31 @@ jobs:
           ..
         emmake make -j ${{ env.ncpus }} install
 
-    - name: Test xeus-cpp C++ Emscripten
+    - name: Build xeus-cpp on Windows systems
+      if: ${{ runner.os == 'windows' }}
+      shell: bash -l {0}
+      run: |
+        .\emsdk\emsdk activate ${{matrix.emsdk_ver}}
+        .\emsdk\emsdk_env.ps1
+        micromamba activate CppInterOp-wasm
+        git clone --depth=1 https://github.com/compiler-research/xeus-cpp.git
+        cd .\xeus-cpp
+        mkdir build
+        pushd build
+        $env:CMAKE_PREFIX_PATH=${{ env.PREFIX }}
+        $env:CMAKE_SYSTEM_PREFIX_PATH=${{ env.PREFIX }}
+        emcmake cmake `
+          -DCMAKE_BUILD_TYPE=${{ env.BUILD_TYPE }}          `
+          -DCMAKE_PREFIX_PATH=${{ env.PREFIX }}             `
+          -DCMAKE_INSTALL_PREFIX=${{ env.PREFIX }}          `
+          -DXEUS_CPP_EMSCRIPTEN_WASM_BUILD=ON               `
+          -DCMAKE_FIND_ROOT_PATH_MODE_PACKAGE=ON            `
+          -DXEUS_CPP_RESOURCE_DIR=${{ env.LLVM_BUILD_DIR }}/lib/clang/${{ matrix.clang-runtime }} `
+          -DSYSROOT_PATH=${{ env.SYSROOT_PATH }}                     `
+          ..
+        emmake make -j ${{ env.ncpus }} install
+
+    - name: Test xeus-cpp C++ Emscripten on Unix Systems
       if: ${{ runner.os != 'windows' }}
       shell: bash -l {0}
       run: |
@@ -935,6 +959,15 @@ jobs:
         cd ./xeus-cpp/build/test
         node test_xeus_cpp.js
 
+    - name: Test xeus-cpp C++ Emscripten
+      if: ${{ runner.os == 'windows' }}
+      shell: bash -l {0}
+      run: |
+        $ErrorActionPreference = "Stop"
+        micromamba activate CppInterOp-wasm
+        cd .\xeus-cpp\build\test
+        node test_xeus_cpp.js
+
     - name: Jupyter Lite integration
       if: ${{ runner.os != 'windows' }}
       shell: bash -l {0}