Override vcvars options

Author: zooba

windows-release/openssl-build.yml

@@ -18,6 +18,10 @@ parameters:
   displayName: 'Custom build VM'
   type: boolean
   default: false
+- name: VCVarsOptions
+  displayName 'vcvarsall.bat options'
+  type: string
+  default: '$(VCPlatform)'
 - name: IncludeX86
   displayName: 'Include x86'
   type: boolean
@@ -88,7 +92,7 @@ jobs:
       displayName: 'Check out OpenSSL sources'
 
     - script: |
-        call "$(vcvarsall)" $(VCPlatform)
+        call "$(vcvarsall)" ${{ parameters.VCVarsOptions }}
         perl "$(Build.SourcesDirectory)\Configure" $(OpenSSLPlatform) no-uplink
         nmake
       workingDirectory: '$(IntDir)'