AGPGART build problem in 2.4.14

[Brandon Barker]

The following problem occured while building linux 2.4.14 while trying to 
make the agpgart driver (system is Intel/Redhat 7.2):

make[3]: Entering directory `/usr/src/linux-2.4.14/drivers/char/agp'
gcc -D__KERNEL__ -I/usr/src/linux-2.4.14/include -Wall -Wstrict-prototypes 
-Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common 
-pipe -mpreferred-stack-boundary=2 -march=i686 -DMODULE -DMODVERSIONS 
-include /usr/src/linux-2.4.14/include/linux/modversions.h   -c -o 
agpgart_fe.o agpgart_fe.c
gcc -D__KERNEL__ -I/usr/src/linux-2.4.14/include -Wall -Wstrict-prototypes 
-Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common 
-pipe -mpreferred-stack-boundary=2 -march=i686 -DMODULE -DMODVERSIONS 
-include /usr/src/linux-2.4.14/include/linux/modversions.h   -DEXPORT_SYMTAB 
-c agpgart_be.c
agpgart_be.c:84:2: #error "Please define flush_cache."
make[3]: *** [agpgart_be.o] Error 1
make[3]: Leaving directory `/usr/src/linux-2.4.14/drivers/char/agp'
make[2]: *** [_modsubdir_agp] Error 2
make[2]: Leaving directory `/usr/src/linux-2.4.14/drivers/char'
make[1]: *** [_modsubdir_char] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.14/drivers'
make: *** [_mod_drivers] Error 2
[root@localhost linux]#

If this problem is resolved please tell me, I'd be very appreciative.
Brandon Barker