I am trying to compile a 2.4.20 kernel with reiserfs support and when compiling this is the error I get.

make[3]: Entering directory `/usr/src/linux-2.4.20/fs/reiserfs'
gcc -D__KERNEL__ -I/usr/src/linux-2.4.20/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -pipe -mpreferred-stack-boundary=2 -march=athlon -nostdinc -iwithprefix include -DKBUILD_BASENAME=super -c -o super.o super.c
super.c: In function `read_super_block':
super.c:869: warning: int format, long unsigned int arg (arg 2)
super.c:944:14: missing terminating " character
super.c: In function `reread_meta_blocks':
super.c:945: error: stray '\' in program
super.c:945: error: `ld' undeclared (first use in this function)
super.c:945: error: (Each undeclared identifier is reported only once
super.c:945: error: for each function it appears in.)
super.c:945: error: syntax error before "n"
super.c:945:12: missing terminating " character
make[3]: *** [super.o] Error 1
make[3]: Leaving directory `/usr/src/linux-2.4.20/fs/reiserfs'
make[2]: *** [first_rule] Error 2
make[2]: Leaving directory `/usr/src/linux-2.4.20/fs/reiserfs'
make[1]: *** [_subdir_reiserfs] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.20/fs'
make: *** [_dir_fs] Error 2