fltk-sys is used at run time in 12 crates (of which 1 optionally, 1 directly). It's used only as a dev dependency in 6 crates.

Number of dependers fltk-sys version Downloads/month
12 1.1.7 750
0 1.0.22 500
2 0.16.5 64
3 0.15.14 89
1 0.13.14 62
Depender (with downloads and own rev deps) fltk-sys version
2.2K 17 fltk =1.1.7