Re: libstdc++/6702: requirements for wchar_t support are too restrictive

[Phil Edwards <phil@jaj.com>]

The following reply was made to PR libstdc++/6702; it has been noted by GNATS.

From: Phil Edwards <phil@jaj.com>
To: dale@peakall.net
Cc: gcc-gnats@gcc.gnu.org
Subject: Re: libstdc++/6702: requirements for wchar_t support are too restrictive
Date: Fri, 17 May 2002 14:00:15 -0400

 On Fri, May 17, 2002 at 05:19:38PM -0000, dale@peakall.net wrote:
 > config.h and c++config.h to
 > define _GLIBCPP_USE_WCHAR_T and rebuilding libstdc++ works without problem
 > on solaris 8, although autoconf had decided that this wasn't possible.
 
 Before you try hacking around this yourself, it's useful to investigate
 /why/ the autoconf scripts decided it wasn't possible.  The file
 sparc-sun-solaris2.8/libstdc++-v3/config.log in the build directory will
 contain the output of the wide-character tests.  Searching for "C99",
 "mbstate_t" and "wchar" should give results.
 
 
 > Support for wchar_t is mandated by the C++ standard - gcc should make
 > more extensive efforts to support it on any platform that it reasonably can
 > (i.e. supports the set of functions used by libstdc++).
 
 We already try, thankyouverymuch.  More specifically, others have reported
 success on this platform, so I'm initially inclined to look at individual
 platform problems than systemic bugs.  There were problems with the 'long
 long' tests under Solaris giving up too easily, but those were fixed back
 in 3.0.3; wide character support is related but separate.