kaikista helpoimmalla pääset, kun lisäät pkaetilähteisiin PLF:n repositoryt ja asennat paketinhallinnan kautta paketin realplay (ei siis realplayer).
Paras vapaa vaihtoehto RealPlayerille on HelixPlayer, joka löytyy suoraa repositoryistä:
~$ sudo apt-cache search helix
helix-player - The Helix Community's open source media player
https://player.helixcommunity.org/?from=forms&href=https%253A%252F%252Fplayer.helixcommunity.org%252F%253Ffrom%253Dforms&pageid=linuxPage&pageregion=bottom_stage_text&src=linux&pcode=rn&opage=linuxEDIT: Libstd++ löytyy monista paketeista:
sudo apt-cache search libstd++
libgmp3-dev - Multiprecision arithmetic library developers tools
libstdc++5 - The GNU Standard C++ Library v3
libstdc++5-3.3-dbg - The GNU Standard C++ Library v3 (debugging files)
libstdc++5-3.3-dev - The GNU Standard C++ Library v3 (development files)
libstdc++5-3.3-doc - The GNU Standard C++ Library v3 (documentation files)
libstdc++6 - The GNU Standard C++ Library v3
libstdc++6-4.0-dbg - The GNU Standard C++ Library v3 (debugging files)
libstdc++6-4.0-dev - The GNU Standard C++ Library v3 (development files)
libstdc++6-4.0-doc - The GNU Standard C++ Library v3 (documentation files)
libstdc++6-dbg - The GNU Standard C++ Library v3 (debugging files)
libstdc++6-dev - The GNU Standard C++ Library v3 (development files)
gccchecker - Memory access debugger for C language development
lib64stdc++6 - The GNU Standard C++ Library v3 (64bit)
lib64stdc++6-4.0-dbg - The GNU Standard C++ Library v3 (debugging files)
libg++2.8.1.3-dbg - The GNU C++ extension library - debugging files
libstdc++2.10-dbg - The GNU stdc++ library (debugging files)
libstdc++2.10-dev - The GNU stdc++ library (development files)
libstdc++2.10-glibc2.2 - The GNU stdc++ library
libstdc++5-3.3-pic - The GNU Standard C++ Library v3 (shared library subset kit)libstdc++6-4.0-pic - The GNU Standard C++ Library v3 (shared library subset kit)libstdc++6-doc - The GNU Standard C++ Library v3 (documentation files)
libstdc++6-pic - The GNU Standard C++ Library v3 (shared library subset kit)