#19679: llvm 2.5 port fails to support Link Time Optimization -------------------------------+-------------------------------------------- Reporter: macports@… | Owner: macports-tickets@… Type: defect | Status: new Priority: Normal | Milestone: Component: ports | Version: 1.7.1 Keywords: llvm lto | Port: llvm llvm-gcc42 -------------------------------+-------------------------------------------- The port does not make libLTO.dylib avaliable to a linker. Thus -flto and -O4 do not work in llvm-gcc42. Either provide a custom linker for use with llvm in macports or simply make libLTO.dylib available to the system linker by placing a symlink to /opt/local/lib/libLTO.dylib in /usr/lib/. The second option would make LTO/bitcode linking available globally but would leave the existing XCode llvm installation in /Developer/usr/ unaffected. -- Ticket URL: <http://trac.macports.org/ticket/19679> MacPorts <http://www.macports.org/> Ports system for Mac OS