Gosh man….. configure:13013: checking for libwebp >= 0.6.0 configure:13020: $PKG_CONFIG --exists --print-errors "$WEBP_MODULE" configure:13023: $? = 0 configure:13037: $PKG_CONFIG --exists --print-errors "$WEBP_MODULE" configure:13338: gcc -o conftest -g3 -O2 -I/opt/homebrew/Cellar/libffi/3.4.2/include -I/opt/homebrew/Cellar/librsvg/2.50.7/include/librsvg-2.0 . . . . -I/opt/homebrew/Cellar/libxext/1.3.4/include -I/opt/homebrew/Cellar/libx11/1.7.2/include -I/opt/homebrew/Cellar/libxcb/1.14_1/include -I/opt/homebrew/Cellar/libxau/1.0.9/include -I/opt/homebrew/Cellar/libxdmcp/1.1.3/include -I/opt/homebrew/Cellar/xorgproto/2021.5/include -I/opt/homebrew/Cellar/webp/1.2.1_1/include conftest.c -lanl >&5 pkg_cv_WEBP_CFLAGS=-I/opt/homebrew/Cellar/webp/1.2.1_1/include pkg_cv_WEBP_LIBS='-L/opt/homebrew/Cellar/webp/1.2.1_1/lib -lwebp' I also have a “decode.h” at /opt/homebrew/Cellar/webp/1.2.1_1/include/webp/decode.h, in "image.c" here is an include "webp/decode.h”, so in my theory it should work, but it does not. As I use to say: "IT is not handicraft, it’s art, you never know what it ends up with" mvh Niels Niels Søndergaard Mariehøj 236, 2990 Nivå +45 4052 2789niels@algon.dk Ultra posse nemo obligatur. > Den 5. nov. 2021 kl. 17.24 skrev Eli Zaretskii : > > [Please use Reply All when replying, to keep the bug tracker on the CC.] > >> From: Niels Søndergaard >> Date: Fri, 5 Nov 2021 16:25:24 +0100 >> >> It is at: "/opt/homebrew/opt/webp/include/webp/decode.h”, >> I just wrote that in “image.c”, and the compilation went well. >> >> And yes, I know, that if change anything in image.c, then it will be overwritten. > > Please show the part of config.log where it looks for webp package. > It was supposed to detect the compiler flags for finding the include > directory there, but for some reason didn't.