https://bugzilla.redhat.com/show_bug.cgi?id=1387924
--- Comment #3 from Antonio Trande anto.trande@gmail.com --- Probably, NLOpt can be compiled without --with-cxx for providing only subroutines written in C: http://ab-initio.mit.edu/wiki/index.php/NLopt_Installation#NLopt_with_C.2B.2...