Fix(Linux): install libc++-dev in CI and revert CMake to enforce libc++

Author: vicajilau

.github/workflows/main.yml

@@ -74,7 +74,7 @@ jobs:
         if: matrix.os == 'ubuntu-latest'
         run: |
           sudo apt-get update
-          sudo apt-get install -y clang cmake ninja-build pkg-config libgtk-3-dev liblzma-dev
+          sudo apt-get install -y clang cmake ninja-build pkg-config libgtk-3-dev liblzma-dev libc++-dev libc++abi-dev
 
       - name: Enable Linux desktop
         if: matrix.os == 'ubuntu-latest'

example/linux/CMakeLists.txt

@@ -45,7 +45,10 @@ function(APPLY_STANDARD_SETTINGS TARGET)
   target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
   target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
 
-
+  if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+    target_compile_options(${TARGET} PRIVATE -stdlib=libc++)
+    target_link_options(${TARGET} PRIVATE -stdlib=libc++)
+  endif()
 endfunction()
 
 # Flutter library and tool build rules.