[CMSSW_7_0_X][48][ARM] Misc. fixes

__ChangeLog__
- Fix undefined symbols coming from _classlib_ on GCC 4.8.1 ARM targets. _classlib_ tries to use private symbols from *libgcc_s* (GCC)
- Disable  _ncurses_ terminfo database and enable termcap as a fallback mechanism. This removes terminfo database from `./share` path and prevents having RPM with hard links.
- Use 8.33 _pcre_ on Fedora to be compatible with system. Warnings were produced by linker while compiling CMSSW about possible conflicts.