By default,  "cmake" seems to strip "rpath" settings from executables.
This breaks things. This patch is an attempt to fix the problem.

--- cmake-3.9.3.old/Modules/CMakeGenericSystem.cmake
+++ cmake-3.9.3/Modules/CMakeGenericSystem.cmake
@@ -27,7 +27,7 @@
 # basically all general purpose OSs support shared libs
 set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS TRUE)
 
-set (CMAKE_SKIP_RPATH "NO" CACHE BOOL
+set (CMAKE_SKIP_RPATH "YES" CACHE BOOL
      "If set, runtime paths are not added when using shared libraries.")
 set (CMAKE_SKIP_INSTALL_RPATH "NO" CACHE BOOL
      "If set, runtime paths are not added when installing shared libraries, but are added when building.")