On Mon, 8 Aug 2011, Rainer Orth wrote: > * SUPPORTS_WEAK is probably best detected with autoconf. We have > libgfortran/acinclude.m4 (LIBGFOR_GTHREAD_WEAK), but should probably > go for m4/ax_sys_weak_alias.m4 from the autoconf-archive instead. If > we're lucky, that macro can detect support for weak definitions and > replace both SUPPORTS_WEAK and GTHREAD_USE_WEAK. > > We have only 2 non-default definitions right now: > > config/avr/avr.h #define SUPPORTS_WEAK 1 > config/cris/cris.h #define SUPPORTS_WEAK 1 > > I have no idea why they are made explicit; both are already correct > from the default in elfos.h (ASM_WEAKEN_LABEL) from what I can see.
For CRIS, history, IIRC. There used to be a cris-aout port as well, which mattered in some way, and even a unified elf-and-a.out-port. Possibly the default SUPPORTS_WEAK was different too then. brgds, H-P
