Add b2-check-installed-posix to ci.yml

.github/workflows/ci.yml

@@ -83,6 +83,34 @@ jobs:
           cd status
           ../b2 -j3 quick
 
+  b2-check-installed-posix:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: true
+
+      - name: Install Boost
+        run: |
+          ./bootstrap.sh
+          ./b2 -j3 --prefix=$HOME/.local install
+
+      - name: Test installed headers
+        run: |
+          g++ -I ~/.local/include -I /usr/include/python3.12 -std=c++20 -c tools/boost_install/test/headers/include.cpp
+
+      - name: Check installed files
+        run: |
+          test -f ~/.local/share/boost_predef/build.jam
+          test -f ~/.local/lib/cmake/BoostDetectToolset-*.cmake
+          test -f ~/.local/lib/cmake/Boost-*/BoostConfig.cmake
+          test -f ~/.local/lib/cmake/Boost-*/BoostConfigVersion.cmake
+          test -f ~/.local/lib/cmake/boost_headers-*/boost_headers-config.cmake
+          test -f ~/.local/lib/cmake/boost_headers-*/boost_headers-config-version.cmake
+          test -f ~/.local/lib/cmake/boost_system-*/boost_system-config.cmake
+          test -f ~/.local/lib/cmake/boost_system-*/boost_system-config-version.cmake
+
   cmake-install-posix:
     strategy:
       fail-fast: false