From David Quarrie:

new option --gccxmlopt for the invocation of genreflex. The content of this
option will be passed to the gccxml invocation inside genreflex (e.g.
--gccxmlopt='--gccxml-cxxflags -m32')


git-svn-id: http://root.cern.ch/svn/root/trunk@16793 27541ba8-7e3a-0410-8455-c3a389f83636