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Date: Tue, 15 Jul 2003 19:55:00 -0000
From: "H. J. Lu" <hjl@lucon.org>
To: Alexandre Oliva <aoliva@redhat.com>
Cc: Gabriel Dos Reis <gdr@integrable-solutions.net>,
	Andrew Cagney <ac131313@redhat.com>,
	Nathanael Nerode <neroden@twcny.rr.com>, fche@redhat.com,
	gdb@sources.redhat.com, binutils@sources.redhat.com
Subject: Re: FYI: A new C++ demangler
Message-ID: <20030715195522.GA21667@lucon.org>
References: <20030712180228.GA912@doctormoo> <3F142933.1060902@redhat.com> <m3vfu3aczu.fsf@uniton.integrable-solutions.net> <oroezv8vec.fsf@free.redhat.lsd.ic.unicamp.br> <20030715191642.GA21025@lucon.org> <orisq38tak.fsf@free.redhat.lsd.ic.unicamp.br>
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On Tue, Jul 15, 2003 at 04:49:07PM -0300, Alexandre Oliva wrote:
> On Jul 15, 2003, "H. J. Lu" <hjl@lucon.org> wrote:
> 
> > FWIW, my C++ demangler patch needs $(CXX) to compile, only $(CC) to
> > link.
> 
> This may be the case with the current GCC, but other C++ compilers,
> and future versions of GCC (especially after we introduce support for
> `export'ed templates) may very well introduce dependencies on their
> run-time libraries, requiring linking with them and possibly even
> using their C++ compiler driver to link.

The demangler configure tests if $(CC) can be used for linking. If not,
the new C++ demangler won't be used. The new C++ demangler is compiled
with -fno-rtti -fno-exceptions for libiberty. I hope when the new
features are added to gcc, there is an option to disable it if needed.


H.J.