If I execute an application on RedHat 6.0 that was compiled
on a RedHat 5.2, get the following message:
  zeus: error in loading shared libraries:
  zeus: undefined symbol: __setfpucw
Zeus is the name of my aplication program.  I know I need to
recode the floating-point exception routine in RedHat 6.0
but I should be able to run programs compiled on RedHat 5.2
on RedHat 6.0 without any problems.  The binary program for
__setfpucw should be provided by glibc even though new
programs compiled using the new header files provided by
RedHat 6.0 will never use them.  They need to be made
available for programs compiled with earlier versions of
glibc.  The same program compiled with libc5 prior to RedHat
5.0 will run on RedHat 6.0.