upgrade gives compiling issue

[aroundmyroom]

I'm getting this issue when running the upgrade script from 1.5.2 to 1.5.3, but cannot relate what I have to to do fix this one .. Guac is working, so it's not a massive issue, but no clue what it should do or give me as feature.

/usr/bin/install -c -m 644 systemd/guacd.service '/etc/systemd/system' make[2]: Leaving directory '/home/upgrade/guacamole-server-1.5.3/src/guacd' make[1]: Leaving directory '/home/upgrade/guacamole-server-1.5.3/src/guacd' Making install in src/guacenc make[1]: Entering directory '/home/upgrade/guacamole-server-1.5.3/src/guacenc' CC guacenc-video.o video.c: In function 'guacenc_video_alloc': video.c:63:22: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 63 | container_format = container_format_context->oformat; | ^ video.c:66:22: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] 66 | AVCodec* codec = avcodec_find_encoder_by_name(codec_name); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make[1]: *** [Makefile:1126: guacenc-video.o] Error 1 make[1]: Leaving directory '/home/upgrade/guacamole-server-1.5.3/src/guacenc' make: *** [Makefile:544: install-recursive] Error 1 Starting tomcat and guacamole...