g77 problems

["Dr P. Caleb Dhanasekaran" <pcd eng cam ac uk>]

Hi all`,

I have installed RedHat 5.1 on my Alpha  UX4,600Mhz PC. I have
upgraded the compilers egcs.1.0.3 and g77-1.0.3 downloading the
rpm files.

My FORTRAN program works fine using fort77 but fails due to
Floating Exception when I use  g77 compiler.  I have been debugging
this  program and when I insert  a write(*,*) statement
in one of the subroutines the programs executes fine. I used
xxgdb to debug the program and it showed problem in cosine  function
(libm).

Could anybody tell me what causes this type of Floating Exception
problem using g77 on Alpha?  Is there any fix to this? This program works
fine on IBM Aix 4.1, HP, Silcon Graphics systems, and g77 on Intel
platform.`

Thanks,
Caleb