Creating this issue because I want to do some work to improve the FLTK situation. Now that FLTK 1.4 is out, I think improvements to the FLTK derivation are long overdue:

• There are too many options in my opinion. We should try to simplify it. Most options should be removed, and whether or not to build a shared library should default to being controlled by whether or not the stdenv is static.
• Most of the build inputs are propagated, but only some of them actually should be. This should be rectified.
• The release version of FLTK 1.4 has incompatible configuration options: the 1.4 derivation can no longer share the same common derivation code easily. I think the best thing to do here would be to make an entirely new derivation and get rid of the FLTK 1.3 derivation.

And probably more things not listed here.

Package Information

• Package name: fltk
• Latest released version: 1.4.0-1
• Current version on the unstable channel: 1.3.8
• Current version on the stable/release channel: 1.3.8

Checklist

• Checked the nixpkgs pull requests

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