Once again: When compiling 1.3.91 with gcc 2.5.8 (I know!) I get:
gcc -D__KERNEL__ -I/usr/src/linux-1.3.91/include -Wall -Wstrict-prototypes -O2 - fomit-frame-pointer -fno-strength-reduce -pipe -m486 -DCPU=486 -c -o emd.o emd. c emd.c: In function `umsdos_emd_dir_read': emd.c:91: warning: use of `L' length character with `d' type character