Mostra la font per a Skype on centOS 5

[[Category:SysAdmin]]
El paquet per instal·lar el skype a Centos 5 es troba a:

/net/atlas/mnt/usb/packages/Internet/Skype/Linux/2.1/skype_static-2.1.0.81.tar.bz2

Les instruccions per la instal·lació son:

. Canviar a /usr/local/lib
 cd /usr/local/lib

. Copiar l'arxiu a /usr/local/lib
 cp /net/nas1/mnt/RAIDA/vol2/pub/cli/SAPO/installacions/packages/skype.tar.bz2 .

. Desempaquetar
 tar -xvjf skype.tar.bz2

. Crear el link a /usr/bin
 ln -s /usr/local/lib/skype_static-2.1.0.81/skype /usr/bin/skype


'''Les instruccions que apareixen a continuació no funcionen correctament:''' 

Source -> http://punkts.org/trac/wiki/Skype22ForCentOS5

Package, install Skype 2.2.0.35 on CentOS 5

CentOS 5 has its own GCC Standard C++ Library package, but it is relatively old:

$ rpm -q --provides libstdc++-4.1.2-48.el5.i386 |grep GLIBC

   libstdc++.so.6(GLIBCXX_3.4)
   libstdc++.so.6(GLIBCXX_3.4.1)
   libstdc++.so.6(GLIBCXX_3.4.2)
   libstdc++.so.6(GLIBCXX_3.4.3)
   libstdc++.so.6(GLIBCXX_3.4.4)
   libstdc++.so.6(GLIBCXX_3.4.5)
   libstdc++.so.6(GLIBCXX_3.4.6)
   libstdc++.so.6(GLIBCXX_3.4.7)
   libstdc++.so.6(GLIBCXX_3.4.8)

Precompiled version of Skype 2.2 Beta for Linux requires a slightly newer version, libstdc++.so.6(GLIBCXX_3.4.9).

Will install the libstdc++ package from Fedora 10, and make sure that it won't overwrite the one that came with the CentOS.

1. Download, install the GCC Standard C++ Library RPM from the Fedora 10 archive. 

   # rpm -i --relocate /usr/lib=/usr/local/lib http://archives.fedoraproject.org/pub/archive/fedora/linux/releases/10/Fedora/i386/os/Packages/libstdc++-4.3.2-7.i386.rpm 
   # rpm -ql libstdc++-4.3.2-7
      /usr/local/lib/libstdc++.so.6
      /usr/local/lib/libstdc++.so.6.0.10
   # ( cd /usr/local/lib ; ls -log libstdc++* )
      lrwxrwxrwx 1     19 Apr  6 12:00 libstdc++.so.6 -> libstdc++.so.6.0.10
      -rwxr-xr-x 1 954544 Nov  5  2008 libstdc++.so.6.0.10
   # whereis libstdc++.so.6
      libstdc++.so: /usr/lib/libstdc++.so.6 /usr/local/lib/libstdc++.so.6

Now will download a few files, build and install the RPM.

2. Download statically compiled version of Skype (to avoid installation of Qt 4). 

   # cd /usr/src/redhat/SOURCES
   # wget http://www.skype.com/go/getskype-linux-static/skype_static-2.2.0.35.tar.bz2

3. Download a simple patch, and a .spec file. 

   # url=http://punkts.org/sw/el5
   # wget $url/skype-2.2.0.25-shell.patch
   # wget $url/skype.sh
   # cd /usr/src/redhat/SPECS
   # wget $url/skype.spec

4. Build, then install the package. 

   # rpmbuild -bb skype.spec
      [...]
   # rpm -i /usr/src/redhat/RPMS/i386/skype-2.2.0.35-*.i386.rpm 

What was the patch needed for?

   $ rpm -ql skype |grep desktop
      /usr/share/applications/skype.desktop
   $ grep Exec /usr/share/applications/skype.desktop
      Exec=skype.sh
   $ rpm -ql skype |grep bin/skype
      /usr/bin/skype
      /usr/bin/skype.sh
   $ pr -to3 /usr/bin/skype.sh
      #!/bin/sh
      LD_PRELOAD=/usr/local/lib/libstdc++.so.6 /usr/bin/skype

Upgrade to CentOS 5.6

If you'd followed instructions given above, and now are trying to upgrade your system to CentOS 5.6, you may encounter the following error:

   # yum update
      [...]
      ERROR with rpm_check_debug vs depsolve:
      libstdc++.so.6(GLIBCXX_3.4.9) is needed by (installed) skype-2.2.0.25-2.el5.punkts.i386
      libstdc++.so.6(GLIBCXX_3.4.9) is needed by (installed) skype-2.2.0.25-2.el5.punkts.i386
      libstdc++.so.6(GLIBCXX_3.4.9) is needed by (installed) skype-2.2.0.25-2.el5.punkts.i386
      libstdc++.so.6(GLIBCXX_3.4.9) is needed by (installed) skype-2.2.0.25-2.el5.punkts.i386
      Complete!
      (1, [u'Please report this error in https://bugzilla.redhat.com/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%205&component=yum'])

To work around this problem uninstall the libstdc++-4.3.2-7 package, upgrade libstdc++ to the version that comes with CentOS 5.6, and then install the libstdc++-4.3.2-7 package back in place.

   # rpm -e --nodeps libstdc++-4.3.2-7
   # yum update libstdc++
      [...]
      Updated:
        libstdc++.i386 0:4.1.2-50.el5                 libstdc++.x86_64 0:4.1.2-50.el5                
      Dependency Updated:
        cpp.x86_64 0:4.1.2-50.el5                    gcc.x86_64 0:4.1.2-50.el5                       
        gcc-c++.x86_64 0:4.1.2-50.el5                gcc-gfortran.x86_64 0:4.1.2-50.el5              
        libgcc.i386 0:4.1.2-50.el5                   libgcc.x86_64 0:4.1.2-50.el5                    
        libgfortran.x86_64 0:4.1.2-50.el5            libstdc++-devel.x86_64 0:4.1.2-50.el5           
      Complete!
   # rpm -i --relocate /usr/lib=/usr/local/lib libstdc++-4.3.2-7.i386.rpm