/usr/lib/ is in kdevelop-dev 4:5.2.1-1ubuntu4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/cmake/KDevelop/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KDevPlatform/
/usr/lib/x86_64-linux-gnu/cmake/KDevPlatform/KDevPlatformConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KDevPlatform/KDevPlatformConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KDevPlatform/KDevPlatformMacros.cmake
/usr/lib/x86_64-linux-gnu/cmake/KDevPlatform/KDevPlatformTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KDevPlatform/KDevPlatformTargets.cmake
/usr/lib/x86_64-linux-gnu/cmake/KDevelop/KDevelopConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KDevelop/KDevelopConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KDevelop/KDevelopTargets.cmake
/usr/lib/x86_64-linux-gnu/libKDevPlatformDebugger.so
/usr/lib/x86_64-linux-gnu/libKDevPlatformDocumentation.so
/usr/lib/x86_64-linux-gnu/libKDevPlatformInterfaces.so
/usr/lib/x86_64-linux-gnu/libKDevPlatformLanguage.so
/usr/lib/x86_64-linux-gnu/libKDevPlatformOutputView.so
/usr/lib/x86_64-linux-gnu/libKDevPlatformProject.so
/usr/lib/x86_64-linux-gnu/libKDevPlatformSerialization.so
/usr/lib/x86_64-linux-gnu/libKDevPlatformShell.so
/usr/lib/x86_64-linux-gnu/libKDevPlatformSublime.so
/usr/lib/x86_64-linux-gnu/libKDevPlatformUtil.so
/usr/lib/x86_64-linux-gnu/libKDevPlatformVcs.so