Build with MACOSX_DEPLOYMENT_TARGET on macOS.

Moved to `[email protected]`.

Signed-off-by: Akos Kitta <[email protected]>

Author: Akos Kitta

Diff for: azure-pipelines.yml

@@ -24,20 +24,23 @@ jobs:
       linux:
         imageName: 'ubuntu-16.04'
         ExecutableSuffix: ''
+        Exports: ''
       mac:
         imageName: 'macOS-latest'
         ExecutableSuffix: ''
+        Exports: 'CGO_ENABLED=1 MACOSX_DEPLOYMENT_TARGET=10.14 '
       windows:
         imageName: 'vs2017-win2016'
         ExecutableSuffix: '.exe'
+        Exports: ''
   pool:
     vmImage: $(imageName)
   steps:
   - task: GoTool@0
     inputs:
-      version: '1.12'
+      version: '1.13'
   - script: |
-      go build -o "$(Build.BinariesDirectory)/$(Agent.OS)_amd64/$(ExecutableName)$(ExecutableSuffix)"
+      $(Exports)go build -o "$(Build.BinariesDirectory)/$(Agent.OS)_amd64/$(ExecutableName)$(ExecutableSuffix)"
       go test ./...
     displayName: 'Build and Test'
   - task: ArchiveFiles@2