http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50470
--- Comment #2 from Rich Felker <bugdal at aerifal dot cx> 2011-09-21 01:34:29 UTC --- The sysroot features may be nice but they're not a substitute for being able to eliminate the default library search path. For example, when using sysroot, -L/new/path will prepend the sysroot to /new/path.