From: Pw Ktp <amar.seeam@...>
Date: 2010-08-14T00:34:57+09:00
Subject: Re: libstdc++

the mystery continues ...


linuxmce@dcerouter:/usr/lib/ruby/gems/1.8/gems$ sudo apt-get install 
libstdc++6-4.2-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package libstdc++6-4.2-dev
linuxmce@dcerouter:/usr/lib/ruby/gems/1.8/gems$ sudo apt-get install 
libstdc++6-4.1-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libstdc++6-4.1-dev is not available, but is referred to by 
another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package libstdc++6-4.1-dev has no installation candidate
linuxmce@dcerouter:/usr/lib/ruby/gems/1.8/gems$





Pw Ktp wrote:
> 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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