$NetBSD$
Taken from OpenBSD
--- lib/cpp/CMakeLists.txt.orig	2016-06-02 21:20:22.000000000 +0000
+++ lib/cpp/CMakeLists.txt	2016-08-28 14:01:52.611842007 +0000
@@ -13,6 +13,3 @@
 install(TARGETS mosquittopp RUNTIME DESTINATION "${BINDIR}" LIBRARY DESTINATION "${LIBDIR}")
 install(FILES mosquittopp.h DESTINATION "${INCLUDEDIR}")
 
-if (UNIX)
-	install(CODE "EXEC_PROGRAM(/sbin/ldconfig)")
-endif (UNIX)
