recent change to gcc

[Tom Tromey]

With this change:

2000-09-05  Bruce Korb  <bkorb@gnu.org>

        * gcc/fixinc/fixincl.c(load_file): always read header files
        with sizes that are a multiple of the page size.

I am no longer able to build gcc on my x86 Linux box.
The changed code uses PAGESIZE, which doesn't seem to be defined anywhere.
I changed it to use getpagesize() and now it builds.

Tom