Merge topic 'test-issue-21144'

e02f677f61 Tests: Add test for early source lookup of file(GENERATE)

Acked-by: Kitware Robot <[email protected]>
Merge-request: !5248

Tests/RunCMake/File_Generate/GenerateSource.cmake

@@ -10,3 +10,6 @@ file(GENERATE
 )
 
 add_executable(mn "${CMAKE_CURRENT_BINARY_DIR}/main.cpp")
+
+add_subdirectory(GenerateSource)
+target_link_libraries(mn PRIVATE ObjLib)

Tests/RunCMake/File_Generate/GenerateSource/CMakeLists.txt

@@ -0,0 +1,8 @@
+add_library(ObjLib OBJECT)
+
+target_sources(ObjLib PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/ObjLib.cpp")
+
+# Ensure re-generation
+file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/ObjLib.cpp")
+
+file(GENERATE OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/ObjLib.cpp" CONTENT "")