GCC, the GNU Compiler Collection

All cycle servers have DevToolSet installed and gcc versions 4.9.2 and 5.3.1 are available. Version 4.8.5 is the default gcc version. You can use scl to control which version you want to use (bash starts a new shell with all variables set).

devtoolset-3 - version 4.9.2
devtoolset-4 - version 5.3.1

  $ scl -l
  devtoolset-3
  devtoolset-4
  $ scl enable devtoolset-4 bash
  $ gcc --version
  gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  Copyright (C) 2015 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions. There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

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