"Duran, Richard" <RDuran@xxxxxxxxxxxxxxxxxxx> writes: > The documentation states that directories identified with "-Idir" > are to be searched before system include directories. Are > directories identifed with "-Ldir" searched before system lib > directories? The documentation makes no statement either way. Yes, directories specified with -L are searched before system library directories. The compiler handles the -I option directly. The -L option is simply passed to the linker, which is not part of the compiler. So in principle the behaviour of the -L option is determined by the linker. In practice all linkers search -L directories before system directories. Ian