Здравствуйте!
Аналогичная проблема уже обсуждалась в форуме, но ответа в той теме нет - видимо ответ был письмом.
http://www.cronyx.ru/forum/?t=382

Итак, имеем:
# uname -a
Linux relay.***.ru 2.4.21-15.EL #1 Thu Apr 22 00:27:41 EDT 2004 i686 i686 i386 GNU/Linux

# cat /etc/redhat-release
Red Hat Enterprise Linux ES release 3 (Taroon Update 2)

# gcc -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2.3/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --host=i386-redhat-linux
Thread model: posix
gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-34)

# make 2>err.txt
cc -O -Wall -fomit-frame-pointer -I/usr/src/linux-2.4.21-15.EL/include -I. -D__KERNEL__ -DMODULE -DEXPORT_SYMTAB -D_LOOSE_KERNEL_NAMES -DMODVERSIONS -include /usr/src/linux-2.4.21-15.EL/include/linux/modversions.h -c omprobe.c

# head err.txt
In file included from /usr/src/linux-2.4.21-15.EL/include/linux/vmalloc.h:4,
from /usr/src/linux-2.4.21-15.EL/include/asm/io.h:47,
from machdep.h:51,
from omprobe.c:17:
/usr/src/linux-2.4.21-15.EL/include/linux/sched.h:6: invalid suffix on integer constant
/usr/src/linux-2.4.21-15.EL/include/linux/sched.h:6: syntax error before numeric constant
In file included from /usr%2