diff -up ./PCLConfig.cmake.in.fedora ./PCLConfig.cmake.in

--- ./PCLConfig.cmake.in.fedora	2018-02-09 12:59:25.329878911 -0500

+++ ./PCLConfig.cmake.in	2018-02-09 13:01:36.772813799 -0500

@@ -717,7 +717,7 @@ if(WIN32 AND NOT MINGW)

   get_filename_component(PCL_ROOT "${PCL_DIR}" PATH)

 else(WIN32 AND NOT MINGW)

 # PCLConfig.cmake is installed to PCL_ROOT/share/pcl-x.y

-  get_filename_component(PCL_ROOT "${CMAKE_CURRENT_LIST_DIR}/../.." ABSOLUTE)

+  set(PCL_ROOT "@CMAKE_INSTALL_PREFIX@")

 endif(WIN32 AND NOT MINGW)

 # check whether PCLConfig.cmake is found into a PCL installation or in a build tree