Build mingw build on Github actions

.github/workflows/verify.yml

@@ -0,0 +1,35 @@
+name: Verify
+
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#permissions
+permissions:
+  actions: none
+  checks: none
+  contents: none
+  deployments: none
+  id-token: none
+  issues: none
+  discussions: none
+  packages: none
+  pages: none
+  pull-requests: none
+  repository-projects: none
+  security-events: none
+  statuses: none
+
+on: [push, pull_request]
+
+jobs:
+  mingw:
+    runs-on: ubuntu-latest
+    timeout-minutes: 40
+    name: Meterpreter C Mingw Docker Build
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          submodules: 'recursive'
+
+      - name: Compile
+        run: |
+          cd c/meterpreter
+          script --return --command 'make docker'

c/meterpreter/Makefile

@@ -1,4 +1,6 @@
-ID := $(shell id -u)
+# The User/Group ID of the Jenkins user in the Docker build container:
+# 	jenkins:x:1001:1001::/var/jenkins_home:/bin/sh
+ID := 1001
 DOCKER_CONTAINER=rapid7/msf-ubuntu-x64-meterpreter:latest
 COMMON_GEN=-Wno-dev -DUSE_STATIC_MSVC_RUNTIMES=ON
 COMMON_GEN_X86=-DCMAKE_TOOLCHAIN_FILE=../toolsets/i686-w64-mingw32.cmake -DBUILD_ARCH=Win32 ${COMMON_GEN}