ci(install): add cmake installation workflow (#8794)

.github/workflows/install.yml

@@ -0,0 +1,49 @@
+name: Install LVGL using CMake
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+concurrency:
+  group: ${{ github.ref }}-${{ github.workflow }}
+  cancel-in-progress: true
+
+jobs:
+  build-examples:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - name: Generate lv_conf.h
+        run: |
+          cp lv_conf_template.h lv_conf.h
+          python3 ./scripts/generate_lv_conf.py \
+            --template lv_conf_template.h \
+            --config lv_conf.h \
+            --defaults configs/ci/install/lv_conf.defaults
+
+      - name: Build LVGL
+        run: |
+          cmake -B build -DCMAKE_INSTALL_PREFIX=$(pwd)/lvgl-install
+          cmake --build build -j$(nproc)
+      - name: Install LVGL
+        run: cmake --install build
+
+      - name: Build an application with the installed version of LVGL
+        run: |
+          echo "#include <lvgl/lvgl.h> 
+            #include <lvgl/lvgl.h> 
+            #include <lvgl/demos/lv_demos.h> 
+            #include <lvgl/examples/lv_examples.h> 
+            int main(void) { 
+              lv_init();
+              lv_example_label_1();
+              lv_demo_widgets();
+              while(1) { 
+                lv_timer_handler(); 
+              } 
+              return 0; 
+          }" >> main.c
+          # We link with `g++` as thorvg (ThorVG library) contains C++ code that requires C++ runtime symbols
+          g++ main.c -o main -I$(pwd)/lvgl-install/include -L$(pwd)/lvgl-install/lib -llvgl_thorvg -llvgl_examples -llvgl_demos -llvgl -lm

configs/ci/install/lv_conf.defaults

@@ -0,0 +1,68 @@
+LV_COLOR_DEPTH	    16
+
+LV_USE_STDLIB_MALLOC LV_STDLIB_CLIB
+LV_USE_STDLIB_STRING LV_STDLIB_CLIB
+LV_USE_STDLIB_SPRINTF LV_STDLIB_CLIB
+
+# LV_USE_OS                 LV_OS_PTHREAD
+# LV_DRAW_SW_DRAW_UNIT_CNT  2
+# LV_DRAW_THREAD_STACK_SIZE    (32 * 1024)
+
+LV_USE_SYSMON       0
+LV_USE_PERF_MONITOR 0
+
+LV_USE_DRAW_SW_COMPLEX_GRADIENTS 1
+LV_OBJ_STYLE_CACHE      1
+LV_USE_LOG	        1
+LV_LOG_PRINTF	    1
+LV_USE_ASSERT_MEM_INTEGRITY	1
+LV_USE_ASSERT_OBJ	1
+LV_USE_ASSERT_STYLE	1
+LV_FONT_MONTSERRAT_12	1
+LV_FONT_MONTSERRAT_14	1
+LV_FONT_MONTSERRAT_16	1
+LV_FONT_MONTSERRAT_18	1
+LV_FONT_MONTSERRAT_20	1
+LV_FONT_MONTSERRAT_22	1
+LV_FONT_MONTSERRAT_24	1
+LV_FONT_MONTSERRAT_26	1
+LV_FONT_MONTSERRAT_28	1
+LV_FONT_MONTSERRAT_30	1
+LV_FONT_MONTSERRAT_32	1
+LV_FONT_MONTSERRAT_34	1
+LV_FONT_MONTSERRAT_36	1
+LV_FONT_MONTSERRAT_38	1
+LV_FONT_MONTSERRAT_40	1
+LV_FONT_MONTSERRAT_42	1
+LV_FONT_MONTSERRAT_44	1
+LV_FONT_MONTSERRAT_46	1
+LV_FONT_MONTSERRAT_48	1
+LV_FONT_MONTSERRAT_28_COMPRESSED	1
+LV_FONT_DEJAVU_16_PERSIAN_HEBREW	1
+LV_FONT_SOURCE_HAN_SANS_SC_16_CJK	1
+LV_FONT_UNSCII_8	1
+LV_FONT_FMT_TXT_LARGE       1
+
+LV_USE_FS_STDIO         1
+LV_FS_DEFAULT_DRIVER_LETTER 'A'
+LV_FS_STDIO_LETTER      'A'
+
+LV_USE_VECTOR_GRAPHIC   1
+LV_USE_THORVG_INTERNAL  1
+LV_USE_MATRIX           1
+LV_USE_FLOAT            1
+LV_USE_LOTTIE           1
+LV_USE_IMGFONT          1
+LV_USE_LZ4_INTERNAL     1
+LV_USE_TINY_TTF         1
+LV_USE_BARCODE          1
+LV_USE_QRCODE           1
+LV_USE_RLE              1
+LV_BIN_DECODER_RAM_LOAD 1
+LV_USE_TJPGD            1
+LV_USE_BMP              1
+LV_USE_LABEL		1
+LV_USE_LODEPNG          1
+LV_BUILD_EXAMPLES 1
+LV_BUILD_DEMOS 1
+LV_USE_DEMO_WIDGETS         1