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From: Josh MacDonald <jmacd@CS.Berkeley.EDU>
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To: Chuck Robey <chuckr@glue.umd.edu>
cc: FreeBSD hackers Mailing list <freebsd-hackers@freebsd.org>
Subject: Re: Patches for gcc 2.7.2 
In-reply-to: Your message of "Mon, 13 May 1996 11:02:31 EDT."
             <Pine.OSF.3.91.960513110012.2591G-100000@ginger.eng.umd.edu> 
Date: Mon, 13 May 1996 17:03:20 -0700
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> On Mon, 13 May 1996, Kees Jan Koster wrote:
> 
> > Hoi Hackers,
> > 
> > I've tried to install g++ 2.7.2 on my 2.1.0-release machine, but it does no
>t
> > seem an out-of-the-box installation.
> > 
> > I modified config/freebsd.h to not generate .weak symbols, and then g++
> > installs and runs all right. However, I get some weird errors from program
> > compiled with 2.7.2. Some die on a signal 11, usually before entering main(
>)
> > or after exiting main().

Usually this change alone works for me.  There are still some things
you need to modify in the headers to get the correct types for va_list
and wchar_t as far as I remember.  I've used g++-2.7.2 to compile some
fairly compilcated non-trivial code and have had no problems.

I can send you the set of patches that I use, or upload binaries.

-josh

> 
> I think that John Polstra's work getting ELF to work for FreeBSD (both 
> Linux and FreeBSD native) included patches to port gcc-2.7.2.  I think 
> you ought to ask him, or check out the elfkit stuff (which includes those 
> patches) on ftp.polstra.com.
> 
> > 
> > Gdb reports the following on the particular program, when I trace main()
> > >
> > > 25        exit (0);
> > > (gdb) next
> > > 
> > > Program received signal SIGSEGV, Segmentation fault.
> > > 0x81434f8 in free ()
> > >
> > 
> > Before I start digging any deeper, I'd like to be sure that my g++ is good.
> > 
> > Normally I would not bother anyone with this kind of problem, but the same
> > code compiles and runs fine on Linux, SunOS and HP-UX and using g++ 2.6.3
> > on FreeBSD. This is also why I ask here instead of the gcc buglist.
> > 
> > Could someone help me out or does anyone have patches for 2.7.2? What shoul
>d
> > I patch out/in?