Sorry, I forgot to fix the dep of the produced package, please use this patch instead.
Samuel
--- debian/control.original 2024-07-30 23:02:05.000000000 +0000 +++ debian/control 2024-07-31 07:26:05.000000000 +0000 @@ -7,7 +7,7 @@ libavif-dev | base-files (<< 11.1~), libfontconfig-dev, libfreetype-dev | libfreetype6-dev, - libheif-dev | base-files (<< 11.1~), + libheif-dev <!pkg.libgd2.noheif> | base-files (<< 11.1~) <!pkg.libgd2.noheif>, libimagequant-dev, libjpeg-dev, libpng-dev, @@ -46,7 +46,7 @@ libfontconfig-dev, libfreetype6-dev, libgd3 (= ${binary:Version}), - libheif-dev | base-files (<< 11.1~), + libheif-dev <!pkg.libgd2.noheif> | base-files (<< 11.1~) <!pkg.libgd2.noheif>, libimagequant-dev, libjpeg-dev, libpng-dev,