Disabling diagnostic remarks in Intel Compilers

So, I was just trying to compile R, a statistical analysis package, on RedHat EL 4 using Intel Compilers 11.1 + MKL 10.1. Unfortunately, the configure step kept barfing on a diagnostic message produced by the "-ipo" (interprocedural optimization) flag. The configure script was interpreting it as an error message when testing for certain features.

The online help for icc (the "-help" flag) does not show how to turn off IPO diagnostics. This Intel forum post gives the answer:

-diag-disable ipo

I will have more to say about compiling R with Intel and linking to the MKL later on.