PATCH: miscellaneous nits in NetBSD configuration

[Jason Merrill]

>>>>> Richard Earnshaw <rearnsha@arm.com> writes:

> jason@cygnus.com said:
>> The problem, as someone pointed out, is that defaults.h will just
>> #define it again if you #undef it.  Methinks the change will be
>> counterproductive, and should be backed out.

> Not quite.  It will only get defined if it is not already *and* 
> INCOMING_RETURN_ADDR_RTX is defined.  Code in final.c then checks whether 
> DWARF2_UNWIND_INFO is defined or not, it does not check its value.  For an 
> a.out machine using stabs (eg netbsd/arm32), defining this to 0 or 1 
> causes dwarf information to be sucked into the build.

Yes, but it doesn't get used unless you say -fno-sjlj-exceptions.  I don't
think it's a problem for the compiler to contain dwarf code that you don't
use.

Jason