Subject: Re: gcc 3.2 string<wchar_t> link problem
From: "Xavier Pianet" <[email-masked]>
To: [email-masked]
Date: Mon, 18 Nov 2002 14:05:51 +0100

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" <[email-masked]> a écrit dans le message
news: [email-masked]...
> 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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