Demo has dependencies and contains paths specific to individual developers' machines

[Kuratius]

Nuklear/demo/sfml_opengl3/Makefile

Line 21 in 171090c

GLAD_DIR = /home/ricky/Libraries/GLAD

Since nuklear is supposed to be header-only I would say this is somewhat counterproductive.

[fuhsnn]

Came to report the same thing.

Both sfml_opengl2/3 are not tested in CI, which would have caught this.

Another issue is they override $CC with g++ then use it to compile .cpp files, the usual convention to use $CXX would be more preferable.