Fails on ports-gcc arches: see CMakeError.log

egcc: error: unrecognized command line option '-fuse-ld=lld'; did you mean '-fuse-ld=bfd'?

Index: cmake/Toolset.cmake
--- cmake/Toolset.cmake.orig
+++ cmake/Toolset.cmake
@@ -96,7 +96,7 @@ if(NOT LINKER_NAME)
     endif()
 endif()
 
-if(LINKER_NAME)
+if(0 AND LINKER_NAME)
     set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=${LINKER_NAME}")
     set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fuse-ld=${LINKER_NAME}")