test$ nasm -v
NASM version 2.15.03rc1 compiled on Sep 30 2020
test$ cat test.asm
label:
incbin ""
%rep $ - label
%endrep
test$ nasm test.asm
test.asm:2: error: `incbin': unable to get length of file `'
test$ nasm test.asm -I ../lmacros/
test.asm:3: error: `%rep' count 9223372036854775807 exceeds limit (currently 1000000)
test$ cat test2.asm
incbin ""
test$ nasm test2.asm
test2.asm:1: error: `incbin': unable to get length of file `'
test$ nasm test2.asm -I ../lmacros/
test2.asm:1: error: `incbin': unexpected EOF while reading file `../lmacros/'
test2.asm:1: error: `incbin': error while reading file `../lmacros/'
test$