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Re: libstdc++ compatibility
- To: Jeffrey A Law <law at cygnus dot com>
- Subject: Re: libstdc++ compatibility
- From: Todd Vierling <tv at pobox dot com>
- Date: Sun, 18 Oct 1998 14:49:35 -0400 (EDT)
- cc: Joe Buck <jbuck at synopsys dot com>, doko at cs dot tu-berlin dot de, egcs at cygnus dot com
On Sat, 17 Oct 1998, Jeffrey A Law wrote:
: If there's not any other binary compatibility problems disabling thread
: support at configure time may give Red Hat a way to upgrade from egcs-1.0.3.
Um, what's wrong with `ship the appropriate runtime binary shlib
separately'?
If you're compiling C++ shared libraries, you should be expecting to lose
binary compatibility in the next generation of the library. C++ is
_extremely_ difficult (and in some cases impossible) to keep binary
compatibility with.
We found this out the hard way with NetBSD 1.3 - a seemingly minor change
should have been a major shlib bump, and wasn't; hence NetBSD 1.2 C++
binaries broke on NetBSD 1.3.
--
-- Todd Vierling (Personal tv@pobox.com; Bus. todd_vierling@xn.xerox.com)