Gerhard Theurich <gtheurich@xxxxxxx> writes: > For a while now I have been wondering if the gcc linker frontend cares > knowing about -g or -O flags. Let's say I have an object file a.o and > I want to link it into an executable a.out using gcc I can just say: > gcc a.o > But I can also use debug or optimization flags: > gcc -g a.o > gcc -O2 a.o > .... > Does the gcc linker frontend care about these flags or are they simply > ignored? Is it generally advisable to use some consistent set of -g/-O > flags during linkage compared to what was used during compilation of > the objects (what if the objects where compiled with different > options)? The -g and -O options are used only when generating .o files, and are ignored when linking .o files. Ian
