From LCG version 69root6:

• LCG Application Area:
  • CORAL_3_0_0 (relational access)
  • COOL_3_0_0 (conditions database)
  • ROOT 6.00.02 (persistency)
  • RELAX_1_4_0 (common dictionaries for I/O and interactivity)
• Externals:
  • Boost 1.55.0
  • AIDA 3.2.1 (histogramming)
  • Xerces-C 3.1.1p1
  • GNU Scientific Library (GSL) 1.10
  • Python 2.7.6 (scripting and interactivity)
  • HepMC 2.06.08

See also:

• GNU Standard Template Library
  • gcc 4.8.1
• C++ Reference
  • http://en.cppreference.com/w/cpp
  • http://www.cplusplus.com/reference/