""cc1plus: unrecognized option `-std=gnu++98' ""
Did you read this LQ thread
"Redhat 9.0 has to be stopped at all costs"
I made a test - compile with CLIsh the day you asked : #1
And it will probably compile with no errors on any modern
system. Just './configure && make' ... and it builds.
CLIsh: Not a new program, but all files seems to have got
an overhaul in 2008, not much chance with RH 9, sorry.
But try on a newer OS, and see if the result will fit