Den 5. nov. 2021 kl. 21.21 skrev Eli Zaretskii <eliz@gnu.org>:

From: Glenn Morris <rgm@gnu.org>
Cc: Niels Søndergaard <nisoni@algon.dk>,
 51611@debbugs.gnu.org
Date: Fri, 05 Nov 2021 15:05:20 -0400

WEBP_CFLAGS is missing from src/Makefile.in.

Thanks, should be fixed now.

Niels, please try the latest master branch.