Split windows-gcc jobs into smaller chunks again.

These are much much slower than anything else.

.github/workflows/ci.yml

@@ -193,7 +193,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        toolset: [ gcc, msvc-14.0, msvc-14.2 ]
+        toolset: [ msvc-14.0, msvc-14.2 ]
         standard: [ 14, 17 ]
         suite: [ github_ci_block_1, github_ci_block_2 ]
     steps:
@@ -231,6 +231,54 @@ jobs:
       - name: Test
         run: ..\..\..\b2 --hash %ARGS% define=CI_SUPPRESS_KNOWN_ISSUES ${{ matrix.suite }}
         working-directory: ../boost-root/libs/math/test
+  windows_gcc:
+    runs-on: windows-2019
+    defaults:
+      run:
+        shell: cmd
+    env:
+      ARGS: toolset=${{ matrix.toolset }} address-model=64 cxxstd=${{ matrix.standard }}
+    strategy:
+      fail-fast: false
+      matrix:
+        toolset: [ gcc ]
+        standard: [ 14, 17 ]
+        suite: [ float128_tests, special_fun, distribution_tests, misc, quadrature, mp, interpolators, autodiff, ../example//examples, ../tools ]
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: '0'
+      - uses: mstachniuk/ci-skip@v1
+        with:
+          commit-filter: '[skip ci];[ci skip];[CI SKIP];[SKIP CI];***CI SKIP***;***SKIP CI***;[apple];[Apple];[APPLE];[linux];[Linux];[LINUX];[standalone];[STANDALONE];[cygwin];[CYGWIN]'
+          commit-filter-separator: ';'
+          fail-fast: true
+      - name: Checkout main boost
+        run: git clone -b develop --depth 1 https://github.com/boostorg/boost.git ../boost-root
+      - name: Update tools/boostdep
+        run: git submodule update --init tools/boostdep
+        working-directory: ../boost-root
+      - name: Copy files
+        run: xcopy /s /e /q %GITHUB_WORKSPACE% libs\math
+        working-directory: ../boost-root
+      - name: Install deps
+        run: python tools/boostdep/depinst/depinst.py math
+        working-directory: ../boost-root
+      - name: Bootstrap
+        run: bootstrap
+        working-directory: ../boost-root
+      - name: Generate headers
+        run: b2 headers
+        working-directory: ../boost-root
+      - name: Config info install
+        run: ..\..\..\b2 config_info_travis_install %ARGS%
+        working-directory: ../boost-root/libs/config/test
+      - name: Config info
+        run: config_info_travis
+        working-directory: ../boost-root/libs/config/test
+      - name: Test
+        run: ..\..\..\b2 --hash %ARGS% define=CI_SUPPRESS_KNOWN_ISSUES ${{ matrix.suite }}
+        working-directory: ../boost-root/libs/math/test
   MSVC2022:
     runs-on: windows-2022
     defaults:
@@ -285,7 +333,7 @@ jobs:
       matrix:
         compiler: [ g++-11 ]
         standard: [ c++17 ]
-        suite: [ github_ci_block_1, github_ci_block_2 ]
+        suite: [ float128_tests, special_fun, distribution_tests, misc, quadrature, mp, interpolators, autodiff, ../example//examples, ../tools ]
     env:
       TOOLSET: gcc
     steps: