Copied from similar patch for other architectures.

Should fix this error:
../sysdeps/unix/sysv/linux/pread.c: In function `__libc_pread':
../sysdeps/unix/sysv/linux/pread.c:53: `__NR_pread' undeclared (first use in this function)
../sysdeps/unix/sysv/linux/pread.c:53: (Each undeclared identifier is reported only once
../sysdeps/unix/sysv/linux/pread.c:53: for each function it appears in.)
make[2]: *** [/home/dank/wk/crosstool-0.28-rc37/build/m68k-unknown-linux-gnu/gcc-2.95.3-glibc-2.2.5/build-glibc/posix/pread.o] Error 1
make[2]: Leaving directory `/home/dank/wk/crosstool-0.28-rc37/build/m68k-unknown-linux-gnu/gcc-2.95.3-glibc-2.2.5/glibc-2.2.5/posix'
make[1]: *** [posix/subdir_lib] Error 2
make[1]: Leaving directory `/home/dank/wk/crosstool-0.28-rc37/build/m68k-unknown-linux-gnu/gcc-2.95.3-glibc-2.2.5/glibc-2.2.5'
make: *** [all] Error 2

--- glibc-2.2.5/sysdeps/unix/sysv/linux/m68k/sysdep.h.old	2004-10-05 08:37:37.000000000 -0700
+++ glibc-2.2.5/sysdeps/unix/sysv/linux/m68k/sysdep.h	2004-10-05 08:38:22.000000000 -0700
@@ -32,6 +32,16 @@
 # define SYS_ify(syscall_name)	__NR_/**/syscall_name
 #endif
 
+/* This is a kludge to make syscalls.list find these under the names
+   pread and pwrite, since some kernel headers define those names
+   and some define the *64 names for the same system calls.  */
+#if !defined __NR_pread && defined __NR_pread64
+# define __NR_pread __NR_pread64
+#endif
+#if !defined __NR_pwrite && defined __NR_pwrite64
+# define __NR_pwrite __NR_pwrite64
+#endif
+
 #ifdef __ASSEMBLER__
 
 /* Linux uses a negative return value to indicate syscall errors, unlike