x64 support

.editorconfig

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+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+indent_style = tab
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = false
+
+[AMBuilder,AMBuildScript,*.py]
+indent_style = space
+indent_size = 2

.github/workflows/ci.yml

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+name: CI
+
+on: [push]
+
+jobs:
+  build:
+    name: ${{ matrix.os_short }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-22.04
+          - windows-2019
+
+        include:
+          - os: ubuntu-22.04
+            os_short: linux
+          - os: windows-2019
+            os_short: windows
+
+    steps:
+      - name: Prepare env
+        shell: bash
+        run: |
+          echo "GITHUB_SHA_SHORT=${GITHUB_SHA::7}" >> $GITHUB_ENV
+
+      - name: Install (Linux)
+        if: runner.os == 'Linux'
+        run: |
+          sudo dpkg --add-architecture i386
+          sudo apt-get update
+          sudo apt-get install -y clang g++-multilib
+          echo "CC=clang" >> $GITHUB_ENV
+          echo "CXX=clang++" >> $GITHUB_ENV
+
+      - name: Setting up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      - name: Install Python dependencies
+        run: |
+          python -m pip install --upgrade pip setuptools wheel
+          pip install git+https://github.com/alliedmodders/ambuild
+
+      - name: Checking out hl2sdks
+        shell: bash
+        run: |
+            sdks=(hl2dm dods css tf2)
+            for sdk in "${sdks[@]}"
+            do
+              git clone --depth 1 -b $sdk https://github.com/alliedmodders/hl2sdk hl2sdk-$sdk
+            done
+
+      - name: Checking out MM:Source
+        uses: actions/checkout@v3
+        with:
+          repository: alliedmodders/metamod-source
+          ref: 1.12-dev
+          path: metamod-source
+
+      - name: Checking out own repository
+        uses: actions/checkout@v3
+        with:
+          path: stripper-source
+
+      - name: Compiling
+        working-directory: stripper-source
+        run: |
+          python3 configure.py --enable-optimize --symbol-files --sdks=hl2dm,dods,css,tf2 --targets=x86,x86_64
+          ambuild objdir
+
+      - name: Uploading package
+        uses: actions/upload-artifact@v4
+        with:
+          name: stripper-source-${{ matrix.os_short }}-${{ env.GITHUB_SHA_SHORT }}
+          path: stripper-source/objdir/package
+
+  release:
+    name: Release
+    if: github.ref_type == 'tag'
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+
+      - name: Arhive Assets
+        shell: bash
+        run: find * -maxdepth 0 -type d -exec zip -r {}.zip {} \;
+
+      - name: Create Release
+        shell: bash
+        run: gh release create ${{ github.ref_name }} --title ${{ github.ref_name }} --latest -R ${{ github.repository }}
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload assets
+        shell: bash
+        run: gh release upload ${{ github.ref_name }} *.zip -R ${{ github.repository }}
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}