diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a2cdb93..3fcb8c7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -7,7 +7,7 @@ on:
         description: 'Configuration'     
         required: true
         default: 'Debug'
-               
+
 jobs:
 
   FFmpeg:
@@ -16,13 +16,37 @@ jobs:
     steps:
       - name: Set up development tools
         shell: cmd
-        run: call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
+        run: |
+          call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
+          FOR /F "delims==" %%G IN ('where cl.exe') DO SET _cl_path=%%G
+          echo CL_EXEC="%_cl_path%"
+          echo WSL_CL_EXEC=`wslpath -u "$CL_EXEC"`
+          echo WSL_CL_PATH=`dirname "$WSL_CL_EXEC"`
+          echo export PATH=$PATH:$WSL_CL_PATH
+          echo export DevEnvDir="%DevEnvDir% "
+          rem ExtensionSdkDir
+          rem FSHARPINSTALLDIR
+          rem Framework40Version
+          rem FrameworkDIR32
+          rem FrameworkDir
+          rem FrameworkVersion
+          rem FrameworkVersion32
+          echo export INCLUDE="%INCLUDE% "
+          echo export LIB="%LIB% "
+          echo export LIBPATH="%LIBPATH% "
+          echo export VCINSTALLDIR="%VCINSTALLDIR% "
+          echo export VSINSTALLDIR="%VSINSTALLDIR% "
+          echo export VisualStudioVersion="%VisualStudioVersion% "
+          rem echo export WindowsSDK_ExecutablePath_x64=%WindowsSDK_ExecutablePath_x64%
+          rem echo export WindowsSDK_ExecutablePath_x86=%WindowsSDK_ExecutablePath_x86%
+          rem echo export WindowsSdkDir=%WindowsSdkDir%
+          echo export WSLcross=true
+          echo export WSLENV=$WSLENV:INCLUDE/w:LIB/w:LIBPATH/w
       - name: Set up WSL
         uses: Vampire/setup-wsl@v1.2.0
       - name: Build FFmpeg
         shell: wsl-bash {0}
         run: |
-          set
           echo $PATH
           cl.exe
           MSBuild.exe