tools/djxl: fails to build without libjpeg
From error log:
$ cmake -DCMAKE_DISABLE_FIND_PACKAGE_JPEG=OFF
$ cmake --build .
[...]
tools/djxl.cc:194:31: error: no member named 'JpegEncoder' in namespace 'jxl'
io.use_sjpeg ? jxl::JpegEncoder::kSJpeg : jxl::JpegEncoder::kLibJpeg,
~~~~~^
tools/djxl.cc:194:58: error: no member named 'JpegEncoder' in namespace 'jxl'
io.use_sjpeg ? jxl::JpegEncoder::kSJpeg : jxl::JpegEncoder::kLibJpeg,
~~~~~^
2 errors generated.