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Message-ID: <3E411E4C.7040902@nigels.com>
Date: Thu, 06 Feb 2003 01:23:08 +1100
From: Nigel Stewart & Fiona Smith <nigels AT nigels DOT com>
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CC: cygwin AT cygwin DOT com
Subject: Re: gcc 3.2 string<wchar_t> link problem
References: <3DD82975 DOT 1040600 AT nigels DOT com> <araod8$tfm$1 AT main DOT gmane DOT org>
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As a follow-up to this still-unresolved issue,
some traffic on the MingW list reveals the same
issue using MingW, which I have also (unsuccessfully)
been experimenting with:

http://www.geocrawler.com/mail/msg.php3?msg_id=9057201&list=6013
http://lists.boost.org/MailArchives/boost/msg41422.php

http://sourceforge.net/mailarchive/message.php?msg_id=1991233

Which has been added to their bug tracker database:
https://sourceforge.net/tracker/index.php?func=detail&aid=664369&group_id=2435&atid=102435

Has anyone else had progress with wchar with either
cygwin on mingw?

Regards,

Nigel Stewart

Xavier Pianet wrote:
> Hi there,
> 
> See my post few weeks ago (29/10/2002)
> subject : conflicting types for `typedef struct mbstate_t`(was link troubles
> with wcslen)
> 
> also the one from zhang le on 27/10/2002
>   missing wcsncmp,wcscpy,wcsncpy and more...
> 
> or a search in the archives on wcslen
> 
> no one on the list acknowledged the pb (cfg ?) and i noticed that gcc-3.2-2
> probably solved issue 2) of my post because it had the following comment
> (msg [ANNOUNCEMENT] Updated: gcc-3.2-2 10/11/2002):
> 'However, the only noticeable change from the last release was an attempt to
> correctly define mbstate_t.'
> 
> I'm positive that wcslen is in newlib but i'm not sure for
> wcsncmp,wcscpy,wcsncpy as i didn't needed them a that time.
> 
> Xavier
> 
> "Nigel Stewart & Fiona Smith" <nigels AT nigels DOT com> a écrit dans le message
> news: 3DD82975 DOT 1040600 AT nigels DOT com...
> 
>>Hello all,
>>
>>Having happily upgraded my Cygwin to include gcc 3.2, I've
>>encountered a show-stopper: The linker can't resolve symbols
>>involving wide C++ strings.  Here is an example:
>>
>>#include <string>
>>#include <iostream>
>>using namespace std;
>>
>>int main(int argc,char *argv[])
>>{
>>        std::string<wchar_t> test;
>>}
>>
>>-----------------
>>
>>$ g++ test.cpp
>>/cygdrive/c/DOCUME~1/nigels/LOCALS~1/Temp/ccHP4AMl.o(.text+0x25):test.cpp:
>>undefined reference to `std::basic_string<wch
>>ar_t, std::char_traits<wchar_t>, std::allocator<wchar_t>
>> >::basic_string[in-charge]()'
>>/cygdrive/c/DOCUME~1/nigels/LOCALS~1/Temp/ccHP4AMl.o(.text+0x30):test.cpp:
>>undefined reference to `std::basic_string<wch
>>ar_t, std::char_traits<wchar_t>, std::allocator<wchar_t>
>> >::~basic_string [in-charge]()'
>>collect2: ld returned 1 exit status
>>
>>---------------------------
>>
>>Any hints, suggestions, or duh-read-the FAQ responses, appreciated.
>>
>>Note that the following compiles & links:
>>
>>int main(int argc,char *argv[])
>>{
>>        std::string<double> test;
>>}
>>
>>----------------
>>
>>$ gcc -v
>>Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/3.2/specs
>>Configured with: /netrel/src/gcc-3.2-3/configure
>>--enable-languages=c,c++,f77,java --enable-libgcj --enable-threads=posi
>>x --with-system-zlib --enable-nls --without-included-gettext
>>--enable-interpreter --disable-sjlj-exceptions --disable-ve
>>rsion-specific-runtime-libs --enable-shared --build=i686-pc-linux
>>--host=i686-pc-cygwin --target=i686-pc-cygwin --enable
>>-haifa --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc
>>--libdir=/usr/lib --includedir=/nonexistent/include --libexecd
>>ir=/usr/sbin
>>Thread model: posix
>>gcc version 3.2 20020927 (prerelease)
>>
>>Cheers,
>>
>>Nigel Stewart


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