Re: Building PCC for "tools" is broken (missing symbol __USE)- PCC bug or NetBSD source tree error?

["William D. Jones" <thor0505%comcast.net@localhost>]

Then what's the best course of action? I'd just like to get a distribution 
with PCC instead of GCC for an old machine with limited disk space... it 
doesn't matter to me if PCC cannot compile all of userland. I was under the 
impression that PCC was able to compile a minimum working system (kernel and 
minimum userland) at some point in the past, but now needs to be updated so 
that it can compile a working distribution again.

-----Original Message----- 
From: Iain Hibbert
Sent: Wednesday, August 13, 2014 10:37 AM
To: William D. Jones
Cc: current-users%netbsd.org@localhost
Subject: Re: Building PCC for "tools" is broken (missing symbol __USE)- PCC 
bug or NetBSD source tree error?

On Mon, 11 Aug 2014, William D. Jones wrote:

> 2. When attempting to build userland with the following mk.conf, I receive 
> an
> error regarding a missing libgcc:
> COPTS=-Os -Wno-error=uninitialized -Wno-error=maybe-uninitialized #This is
> irrelevant, more than likely
> MKPCC=yes
> MKGCC=no
> HAVE_GCC=4 #Define if MKGCC=no
> #HAVE_PCC=1
>
> Essentially, I want to use GCC to build a userland with PCC only for my 
> 486
> machine to save space and compiling time.I think this is a dependency 
> error
> that the build system misses; it seems as if MKGCC isn't honored for 
> certain
> Makefiles. Does anyone familiar with build.sh internals have any idea on 
> how
> to fix this?

I rather suspect this is unknown territory, with half-grown features
lying in wait to trap the unwary.

In the beginning, PCC support started to be added in the style of the GCC
support, but I think this is not fully tested (since PCC cannot yet build
everything). Latterly, Joerg has been working on LLVM support and he has
added the AVAILABLE_COMPILER functionality, but there are still remnants
of the previous setup, and I am not sure if there is yet a final design
for providing a NetBSD release with a different compiler, though as far as
I know, LLVM/Clang should be capable enough (there are still some
UNSUPPORTED_COMPILER.clang instances in the GCC code)

regards,
iain

--
William D. Jones
Rowan University | ECE | 2012
Member IEEE
Member Tau Beta Pi
thor0505%comcast.net@localhost
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