kernel compile problem on RH 5.0

[Carlos Sabo <bison@coffeebean.net>]

Hello, I'm having trouble compiling the kernel on my fresh, stock RH 5.0
machine. (Version 5.0 comes with kernel 2.0.32.)  When I type 'make boot'
it chokes upon compiling the file ./drivers/block/md.c ...It says: 

	cpp: output pipe has been closed
	gcc: Internal compiler error: program cc1 got fatal signal 11
	make[3]: *** [md.o] Error 1

...and then 4-7 more lines of errors.

What's going on and what is cc1?

I'd bet I wouldn't be having this problem if I weren't using version 5.0. 
Any pointers would be appreciated.

Carlos