Merge pull request #1685 from secondlife/brad/materials_featurette_build_workaround

Attempted workaround for actions/runner-images#10004 build failures.

.github/workflows/build.yaml

@@ -312,7 +312,7 @@ jobs:
       AZURE_CLIENT_SECRET: ${{ secrets.AZURE_CLIENT_SECRET }}
       AZURE_TENANT_ID:     ${{ secrets.AZURE_TENANT_ID }}
     needs: build
-    runs-on: windows
+    runs-on: windows-large
     steps:
       - name: Sign and package Windows viewer
         if: env.AZURE_KEY_VAULT_URI && env.AZURE_CERT_NAME && env.AZURE_CLIENT_ID && env.AZURE_CLIENT_SECRET && env.AZURE_TENANT_ID

indra/cmake/00-Common.cmake

@@ -103,6 +103,11 @@ if (WINDOWS)
     string(REPLACE "/Zi" "/Z7" CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO}")
     string(REPLACE "/Zi" "/Z7" CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}")
   endif()
+
+  # workaround for github runner image breakage:
+  # https://github.com/actions/runner-images/issues/10004#issuecomment-2153445161
+  # can be removed after the above issue is resolved and deployed across GHA
+  add_compile_definitions(_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR)
 endif (WINDOWS)