Description:  Don't set a default rpath in global LDC configuration.
Author: Matthias Klumpp <mak@debian.org>

--- a/runtime/CMakeLists.txt
+++ b/runtime/CMakeLists.txt
@@ -247,7 +247,7 @@
 # Default -rpath linker option when linking against shared libraries.
 if(SHARED_LIBS_SUPPORTED)
     set(SHARED_LIBS_RPATH         "${CMAKE_BINARY_DIR}/lib${LIB_SUFFIX}")
-    set(SHARED_LIBS_INSTALL_RPATH "${CMAKE_INSTALL_LIBDIR}")
+    set(SHARED_LIBS_INSTALL_RPATH "")
 endif()
 
 # Only have either shared or static libs?