Unable to make

[NiKiZe]

could you try:
make V=1 to see what is going on?

OS might be relevant here,
the error seems to come from: https://git.ipxe.org/ipxe.git/blob/a4f8c...img.pl#l40

What is it that you are trying to build? as in which binary do you want? as a work around you might be able to build that specifically, unless you really want just ipxe.dsk or one that depends on it.

for targets, see https://ipxe.org/appnote/buildtargets