RFC src/configure* - "CFLAGS=-g -O" instead of "CFLAGS=... -Wall"

[Ian Lance Taylor]

   Date: Wed, 05 Apr 2000 09:53:42 +1000
   From: Andrew Cagney <ac131313@cygnus.com>

   At present the top level configure + Makefile.in force (when GCC) CFLAGS
   to:

	   CFLAGS = -g -O -Wall

   I'd like to scale that back to just:

	   CFLAGS = -g -O

   letting each sub directory set their own -W* policy.  The src/gdb and
   src/sim directories try to do this now using separate WARN_CFLAGS (only
   they get overuled by CFLAGS :-).

That was a policy I put in for the binutils.  It's OK with me to
change it provided you simultaneously change the binutils
subdirectories (binutils, bfd, libiberty, opcodes, binutils, gas, ld,
gprof) to default to -Wall.

Ian