nido's SFML script not working

[paul424]

With nido's SFML script restored I keep getting errors of linkage to shared libraries .
After further investigations it seems that FindSFML.cmake script provides SFML_****_NONDEBUG , while the CMakeList.txt requires SFML_*****_RELEASE.
Which should be changed for another one ?

[nido]

something went horribly wrong. apologies.

I copied the upstream file this time, should work a lot better