cmake+ci: fix+test sdl2-config + sdl2.pc for all supported platforms

.github/workflows/ps2.yaml

@@ -11,11 +11,41 @@ jobs:
     - name: Setup dependencies
       run: |
         apk update 
-        apk add cmake gmp mpc1 mpfr4 make
-    - name: Configure CMake
-      run: cmake -S. -Bbuild -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=$PS2DEV/ps2sdk/ps2dev.cmake -DSDL_TESTS=ON
+        apk add cmake gmp mpc1 mpfr4 ninja pkgconf
+    - name: Configure (CMake)
+      run: |
+        cmake -S . -B build -G Ninja\
+          -DCMAKE_TOOLCHAIN_FILE=$PS2DEV/ps2sdk/ps2dev.cmake \
+          -DSDL_TESTS=ON \
+          -DCMAKE_INSTALL_PREFIX=cmake_prefix \
+          -DCMAKE_BUILD_TYPE=Release
     - name: Build
-      run: cmake --build build
+      run: cmake --build build --config Release --verbose --parallel
+    - name: Install (CMake)
+      run: |
+        set -eu
+        cmake --install build/ --config Release
+        echo "SDL2_DIR=$(pwd)/cmake_prefix" >> $GITHUB_ENV
+        ( cd cmake_prefix; find ) | LC_ALL=C sort -u
+
+    - name: Verify CMake configuration files
+      run: |
+        cmake -S cmake/test -B cmake_config_build -G Ninja \
+          -DCMAKE_TOOLCHAIN_FILE=$PS2DEV/ps2sdk/ps2dev.cmake \
+          -DTEST_SHARED=FALSE \
+          -DCMAKE_PREFIX_PATH=${{ env.SDL2_DIR }} \
+          -DCMAKE_BUILD_TYPE=Release
+        cmake --build cmake_config_build --verbose
+    - name: Verify sdl2-config
+      run: |
+        export CC=mips64r5900el-ps2-elf-gcc
+        export PATH=${{ env.SDL2_DIR }}/bin:$PATH
+        cmake/test/test_sdlconfig.sh
+    - name: Verify sdl2.pc
+      run: |
+        export CC=mips64r5900el-ps2-elf-gcc
+        export PKG_CONFIG_PATH=${{ env.SDL2_DIR }}/lib/pkgconfig
+        cmake/test/test_pkgconfig.sh
     
     - name: Get short SHA
       id: slug