Warning, /sdk/kdiff3/diff_ext_for_kdiff3/CMakeLists.txt is written in an unsupported language. File is not indexed.

 #  SPDX-FileCopyrightText: 2003-2006, Sergey Zorin. All rights reserved.
 #  SPDX-FileCopyrightText:  2018-2020 Michael Reeves reeves.87@gmail.com
 #  SPDX-License-Identifier: BSD-2-Clause
 
 # Work around buggy windows sdk headers that prevent certain symbols from being exported the normal way
 # even though they are required exports for shell exentions.
 if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
 set(kdiff3extdefs diff_ext_for_kdiff3_msvc.def)
 elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
 set(kdiff3extdefs diff_ext_for_kdiff3.def)
 endif()
 
 set(kdiff3ext_SRCS
     class_factory.cpp
     diff_ext.cpp
     server.cpp
     ${kdiff3extdefs}
 )
 
 set_source_files_properties(${kdiff3extdefs} PROPERTIES HEADER_FILE_ONLY TRUE)
 
 set(kdiff3ext_RCS
     diff_ext_for_kdiff3.rc
 )
 
 add_library(kdiff3ext MODULE ${kdiff3ext_SRCS} ${kdiff3ext_RCS})
 
 target_link_libraries(kdiff3ext KF${KF_MAJOR_VERSION}::I18n uuid ole32)
 target_compile_definitions(kdiff3ext PRIVATE -DTRANSLATION_DOMAIN=\"kdiff3\" -DUNICODE=1 -Dkdiff3ext)
 
 #If we don't do this the nsi packer won't pickup the shell extention library.
 install(TARGETS kdiff3ext DESTINATION  ${KDE_INSTALL_PLUGINDIR} )