2.5.31 build failure

[Daniel I. Applebaum]

I get the following error when trying to build 2.5.31:
gcc -Wp,-MD,./.entry.o.d -D__ASSEMBLY__ -D__KERNEL__ -I/usr/src/linux-2.5.31/include -nostdinc -iwithprefix include  -traditional  -c -o entry.o entry.S
/usr/lib/gcc-lib/i386-redhat-linux/2.96/tradcpp0: Usage: /usr/lib/gcc-lib/i386-redhat-linux/2.96/tradcpp0 [switches] input output
make[2]: *** [entry.o] Error 1
make[2]: Leaving directory `/usr/src/linux-2.5.31/arch/i386/kernel'
make[1]: *** [arch/i386/kernel] Error 2
make[1]: Leaving directory `/usr/src/linux-2.5.31'
make: *** [bzImage] Error 2

Dan.