exclude some windows

Author: danpf

.github/workflows/cpp.yml

@@ -52,6 +52,7 @@ jobs:
           sudo apt-get update
           sudo apt-get install gcc-4.8 g++-4.8 g++-4.8-multilib linux-libc-dev:i386 libc6-dev-i386
         fi
+      if: matrix.os != 'windows-latest'
 
     - name: Setup cmake
       uses: jwlawson/[email protected]