Dear list,
i try to compile on a freshly installed system Gem from https://github.com/umlaeute/Gem
Hopefully this is the latest version what is available online.

Anyway after congigure I have this output:

 used optional libraries:

  font-rendering         : FTGL
     default font        :

  image-support
    use ImageMagick      : no
    use QuickTime        : no
    use AVFoundation     : no
    use TIFF             : no
    use JPEG             : no
  moviefile-support
    use PLUGINS          : yes
    use mpeg             : no
    use mpeg-3           : no
    use QuickTime        : no
    use AVFoundation     :
    use aviplay          : no
    use gmerlin          : no
  capture-support
    use PLUGINS          : yes
    use v4l              : no
    use v4l2             : no
    use ieee1394         : no
    use DV               : no
    use Unicap           : yes
    use Video-for-WinDOS : no
    use QuickTime        : no
    use AVFoundation     : no

Now run make ...

I wuld gladly have all the options especially for pix_video to have a choice (the real aim is to have videoPYLON get wrked on this system)

but make stops at this point:
TextBase.h:38:12: fatal error: FTFont.h: No such file or directory
 #  include "FTFont.h"

            ^~~~~~~~~~
compilation terminated.
What do I miss?

installed Gem with aptitude together with puredata cannot even create any Gem related objects.
Best,
Popesz