autoconf on Linux/opteron

[Harry Mangalam <hjm@xxxxxxxxx>]

Hi there,

This is mostly an FYI:

I'm building netCDF lib on an opteron /Linux (ubuntu) in 64 bit mode with f77 
& f90, gcc 3.4.

I can get it to build correctly after modifying the macro.make file to 
resemble

   31 # Compilation:
   32 CC    = gcc -Df2cFortran   <-- had to be manually edited
   33 CXX      = g++
   34 FC    = f77               
   35 F90      = f90             
   36 CFLAGS      = -g
   37 CXXFLAGS = -g -O2
   38 FFLAGS      = -ff2c        <--had to be manually edited
   39 F90FLAGS =                 
 
When you next re-examine the autoconf process, you might try to detect this 
platform and add these flags automagically.  Our experience with the opteron 
so far has been pretty good and this may well be a standard platform for 
large data sets soon.