Re: building gcc 3.0.4 on mips-dec-osf1: where are CPP definitions set?

[Dennis Grevenstein <dennis.grevenstein@gmail.com>]

Hi,

> Am 21.03.2023 um 01:04 schrieb Jonathan Wakely <jwakely.gcc@gmail.com>:
> 
>> I’ve got an unusual problem. I have on old DECstation (MIPS R3000
>> based) running the infamous OSF/1. I got gcc-2.7.2.3 compiled and
>> working and I am now trying to upgrade to 3.0.4.
>> One problem I found is that gcc-3.0.4 no longer defines
>> #define __LANGUAGE_C__ 1
>> and a number of header files depend on it.
>> It still defines
>> #define __LANGUAGE_C 1
>> but of course that is not the same.
>> gcc-2.7.2.3 still defined it correctly. I assume that this is just an
>> error in some file, but I can’t find where these defines are set.
> 
> I think it's a call to builtin_define in gcc/config/mips/mips.h

this is correct and I eventually got gcc-3.0.4 compiled.
However, the resulting gcc doesn’t fully work. It can go through
stage2 and it can build some apps like GNU sed, but will produce
binaries that fail with a Signal 11 with some other apps.
I think I would rather go back to gcc-2.7.2.3.

thank you anyway…

regards,
Dennis