ENH: Enable dependent library search paths on more platforms

  - NetBSD needs dependent library paths in -rpath-link option.
  - kFreeBSD needs dependent library paths in -rpath-link option.

Modules/Platform/NetBSD.cmake

@@ -5,6 +5,7 @@ IF(EXISTS /usr/include/dlfcn.h)
   SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")         # +s, flag for exe link to use shared lib
   SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Wl,-rpath,")       # -rpath
   SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP ":")   # : or empty
+  SET(CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG "-Wl,-rpath-link,")
   SET(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Wl,-soname,")
   SET(CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG "-Wl,-soname,")
   SET(CMAKE_EXE_EXPORTS_C_FLAG "-Wl,--export-dynamic")

Modules/Platform/kFreeBSD.cmake

@@ -5,6 +5,7 @@ SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-shared")
 SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "-rdynamic")  
 SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Wl,-rpath,")
 SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP ":")
+SET(CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG "-Wl,-rpath-link,")
 SET(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Wl,-soname,")
 SET(CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG "-Wl,-soname,")