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To: Jan Hubicka <jh@suse.cz>
Cc: David Edelsohn <dje@watson.ibm.com>, Zack Weinberg <zack@codesourcery.com>,
   gcc@gcc.gnu.org, libstdc++@gcc.gnu.org
Subject: Re: basic-improvements merge status
References: <200212162226.RAA23850@makai.watson.ibm.com>
	<m3y96pghhf.fsf@uniton.integrable-solutions.net>
	<20021217085445.GU3138@kam.mff.cuni.cz>
	<m3r8chf1ls.fsf@uniton.integrable-solutions.net>
	<20021217113450.GA25435@kam.mff.cuni.cz>
From: Gabriel Dos Reis <gdr@integrable-solutions.net>
In-Reply-To: <20021217113450.GA25435@kam.mff.cuni.cz>
Organization: Integrable Solutions
Date: Tue, 17 Dec 2002 08:39:00 -0000
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Jan Hubicka <jh@suse.cz> writes:

| > Jan Hubicka <jh@suse.cz> writes:
| > 
| > | -fno-builtin-sin does the trick.
| > 
| > The issue isn't about the lack of built-in sin.  It is about lack of
| > support (either hardwired or in library) for sin{, f,l}.
| 
| libstdc++ does provide these.  All we need is to move them into libgcc
| and use -fno-builtin-sin to compile file in question.
| What do you see wrong about using the -fno-builtin to compile runtime
| support that must be done in a way breaking C90 standard?

My grip about -fno-builtin is that it operates (at least that is my
understanding) in a yes/no mode whereas in practice we need something
that can understand gray variation.  That is, the builtins are not all
missing at the same time; we should be able to make the compiler
understand that. 

-- Gaby