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Re: Multiple GCC versions and libstdc++.so

From: Ian Lance Taylor <iant at google dot com>
To: "Richard Sewards" <richard dot sewards at exfo dot com>
Cc: <gcc-help at gcc dot gnu dot org>
Date: Mon, 25 Oct 2010 13:06:07 -0700
Subject: Re: Multiple GCC versions and libstdc++.so
References: <mcrwrp9u4iy.fsf@google.com> <2DD52030B5146141BEB762A11AE97C4C44B1B7@SPQCEXC05.exfo.com>

"Richard Sewards" <richard.sewards@exfo.com> writes:

> Is it not possible to make libstdc++ and libgcc_s static, somewhat
> equivalent to the crtX.o objects linked prior to main, and still support
> the exception stuff across libraries?

On GNU/Linux, it is.  You can link with the -static-libgcc and
-static-libstdc++ options (the latter is new in gcc 4.5) and everything
should work.  I'm not aware of any non-GNU/Linux systems for which this
will work reliably.  It requires a linker which support --eh-frame-hdr
and a libc which supports dl_iterate_phdr.  A few more notes at
http://www.airs.com/blog/archives/166 .

Ian

References:
- Re: Multiple GCC versions and libstdc++.so
  - From: Ian Lance Taylor
- RE: Multiple GCC versions and libstdc++.so
  - From: Richard Sewards

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