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Date: Thu, 6 Oct 2016 12:29:05 -0700 (PDT)
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Subject: Re: to Simon Wright, re Mac OS X builds
From: Lucretia <laguest9000@googlemail.com>
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Xref: news.eternal-september.org comp.lang.ada:32026
Date: 2016-10-06T12:29:05-07:00
List-Id: <comp.lang.ada>

On Thursday, 6 October 2016 20:08:56 UTC+1, Simon Wright  wrote:
> Lucretia  writes:
> 
> > On Thursday, 6 October 2016 18:14:28 UTC+1, Lucretia  wrote:
> >
> >> Aaaaand, that seems to be working. Thanks! Should be able to build an
> >> iPhone compiler once this is done, Fun times!
> >
> > I do wonder whether it should use the system libstdc++ rather than
> > build the gcc one.
> 
> Building against the gcc one causes problems when some of the symbols
> aren't defined in the system one.
> 
>   build/genpreds -h ../../gcc-6.1.0/gcc/common.md ../../gcc-6.1.0/gcc/config/i386/i386.md > tmp-preds.h
>   dyld: Symbol not found: __ZdlPvm
>     Referenced from: /Users/simon/tmp/gcc-6.1.0-build/gcc/build/genpreds (which was built for Mac OS X 10.11)
>     Expected in: /usr/lib/libstdc++.6.dylib
>    in /Users/simon/tmp/gcc-6.1.0-build/gcc/build/genpreds

I just had this exact error!

> 
> which I fixed by moving the just-built GCC libstdc++.6.dylib to the
> place it's expected to be, in my case /opt/gcc-6.1.0/lib, and then
> carrying on with the build.
> 
> I haven't reported this; perhaps -static-libstdc++ needed in
> --with-boot-ldflags? This is a complicated and timeconsuming area to
> investigate.

I'll try it.