✅ add regression test for #2281

test/cmake_target_include_directories/CMakeLists.txt

@@ -2,7 +2,6 @@ add_test(NAME cmake_target_include_directories_configure
   COMMAND ${CMAKE_COMMAND}
     -G "${CMAKE_GENERATOR}"
     -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-    -DCMAKE_BUILD_TYPE=Debug
     -Dnlohmann_json_source=${PROJECT_SOURCE_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}/project
 )

test/cmake_target_include_directories/project/CMakeLists.txt

@@ -11,13 +11,11 @@ target_include_directories(with_private_system_target PRIVATE SYSTEM ${nlohmann_
 set_target_properties(with_private_system_target PROPERTIES CXX_STANDARD 11)
 
 # regression from https://github.com/nlohmann/json/discussions/2281
-add_library(Foo SHARED)
-target_sources(Foo PRIVATE Foo.cpp Bar.cpp)
+add_library(Foo SHARED Foo.cpp Bar.cpp)
 target_include_directories(Foo PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} ${nlohmann_json_source}/include)
 set_target_properties(Foo PROPERTIES CXX_STANDARD 11)
 
-add_library(Bar SHARED)
-target_sources(Bar PRIVATE Bar.cpp)
+add_library(Bar SHARED PRIVATE Bar.cpp)
 target_link_libraries(Bar PRIVATE Foo)
 target_include_directories(Bar PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} ${nlohmann_json_source}/include)
 set_target_properties(Bar PROPERTIES CXX_STANDARD 11)