K 10
svn:author
V 6
amdmi3
K 8
svn:date
V 27
2019-06-03T17:37:13.352248Z
K 7
svn:log
V 296
Add option to switch between Nettle and OpenSSL for cryptography

Nettle is used by default in accordance to what upstream CMake
code prefers.

This fixes hidden dependency on nettle if it's installed when
supertuxkart is build.

PR:		237923
Reported by:	phascolarctos@protonmail.ch
MFH:		2019Q2

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