.github: build/crossbuild binaries in sanity check.

Signed-off-by: Krisztian Litkey <[email protected]>

Author: klihub

.github/workflows/sanity.yml

@@ -1,5 +1,9 @@
 on: [push, pull_request]
 name: Sanity
+
+env:
+  GO_VERSION: '1.17.x'
+
 jobs:
   build:
     name: "Run go sanity tools"
@@ -8,7 +12,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions/setup-go@v2
       with:
-        go-version: 1.17.x
+        go-version: ${{ env.GO_VERSION }}
     - name: Install golint
       run: go get -u golang.org/x/lint/golint
     - name: Lint
@@ -19,3 +23,30 @@ jobs:
       run: make vet
     - name: Test
       run: make test
+
+
+  # Make sure binaries compile on multiple platforms.
+  crossbuild:
+    name: Build/Crossbuild Binaries
+    runs-on: ubuntu-20.04
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - goos: linux
+            goarch: amd64
+          - goos: windows
+            goarch: amd64
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: ${{ env.GO_VERSION }}
+      - name: Build
+        env:
+          GOOS: ${{matrix.goos}}
+          GOARCH: ${{matrix.goarch}}
+        run: |
+          env | grep ^GO
+          make