Re: CRIS port, part 3: config.gcc and config/cris; core port

[Hans-Peter Nilsson <hans-peter dot nilsson at axis dot com>]

> Date: Sat, 29 Sep 2001 10:16:31 -0700
> From: Zack Weinberg <zack@codesourcery.com>

> On Sat, Sep 29, 2001 at 05:51:29PM +0200, Hans-Peter Nilsson wrote:
> 
> > + #define CPP_PREDEFINES	"-Dcris -DCRIS -DGNU_CRIS"
> 
> Since this is a brand new port, please do not include any predefined
> macros which are outside the implementation name space.  Use __cris__,
> etc.

This is *not* a brand new port.  It dates back to gcc 2.1.  The
GNU/Linux part is a bit newer, though. ;-)

I *think* that change would be safe, though it was quite some
time ago that I knew all code compiled by this port.  I really
would prefer not to do this change.

> > + #undef CRIS_CPP_SUBTARGET_SPEC
> > + #define CRIS_CPP_SUBTARGET_SPEC \
> > +   "-D__linux__ -D__unix__  -D__ELF__\
> > +    %{pthread:-D_REENTRANT}\
> > +    %{fPIC|fpic: -D__PIC__ -D__pic__}\
> > +    %{!fleading-underscore:-fno-leading-underscore -D__NO_UNDERSCORES__}\
> > +    %{!march=*:%{!cpu=*:-D__arch_v10 -D__CRIS_arch_version=10}}\
> > +    %{!ansi:%{!std=*:%{!undef:-Dlinux -Dunix}\
> > +      -Asystem(unix) -Asystem(posix) -Acpu(cris) -Amachine(cris)}}"
> 
> Ditto.

(this being config/cris/linux.h): It should define the same
GNU/Linux macros as other GNU/Linux ports, so please don't
require changes that are likely to break GNU/Linux compatibility
for some program.

> Assertions should use the new command line syntax: -Asystem=unix.
> Also, assertions should not be disabled by -ansi or -std.  Consider
> not providing any predefined assertions at all; they are deprecated.

Sorry, I missed that, I'll use the new syntax.  

brgds, H-P