From: Pw Ktp <amar.seeam@...>
Date: 2010-08-14T00:31:43+09:00
Subject: Re: libstdc++

Brian Candler wrote:
> Pw Ktp wrote:
>> linuxmce@dcerouter:/usr/lib/ruby/gems/1.8/gems$ dpkg-query -l | grep 
>> stdc
>> ii  libstdc++5                                 1:3.3.6-15ubuntu2 
>> The GNU Standard C++ Library v3
>> ii  libstdc++5-3.3-dev                         1:3.3.6-15ubuntu2 
>> The GNU Standard C++ Library v3 (development
>> ii  libstdc++6                                 4.2.1-5ubuntu4 
>> The GNU Standard C++ Library v3
>> ii  xstdcmap                                   1:1.0.1-0ubuntu2 
>> X client - xstdcmap
> 
> If you have libstdc++6, then you should be able to install 
> libstdc++6-4.2-dev (unless you got that libstdc++6 package from 
> somewhere outside the standard Ubuntu package respositories)
> 
> If you're not getting a mkmf.log, then perhaps it's failing building a 
> dependency. Look for the mkmf.log with the most recent timestamp
> 
> find /var/lib/gems/1.8/gems -name mkmf.log | xargs ls -lrt

anything from this >??

 cat /usr/lib/ruby/gems/1.8/gems/id3lib-ruby-0.5.0/ext/mkmf.log
have_library: checking for main() in -lstdc++... -------------------- no

"cc -o conftest -I. -I/usr/lib/ruby/1.8/i486-linux -I. 
-fno-strict-aliasing -g -O2  -fPIC conftest.c  -L"." -L"/usr/lib" -L. 
-rdynamic -Wl,-export-dynamic     -lruby1.8-static -lstdc++  -lpthread 
-ldl -lcrypt -lm   -lc"
/usr/bin/ld: cannot find -lstdc++
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
/* end */

"cc -o conftest -I. -I/usr/lib/ruby/1.8/i486-linux -I. 
-fno-strict-aliasing -g -O2  -fPIC conftest.c  -L"." -L"/usr/lib" -L. 
-rdynamic -Wl,-export-dynamic     -lruby1.8-static -lstdc++  -lpthread 
-ldl -lcrypt -lm   -lc"
/usr/bin/ld: cannot find -lstdc++
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: /*top*/
2: int main() { return 0; }
3: int t() { main(); return 0; }
/* end */

--------------------

linuxmce@dcerouter:/usr/lib/ruby/gems/1.8/gems$
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