@berni
SMLIB 0.11 BETA (over 300 Function Stocks) | updated 15.07.2011
https://forums.alliedmods.net/showthread.php?t=148387
Is using "old style" coding.
I'm not sure, can you bypass that by comment this line.
Code:
#pragma newdecls required
to this
//#pragma newdecls required
SMLIB can be found from github
https://github.com/bcserv/smlib
And some people try to update to "new style"
https://github.com/bcserv/smlib/issues/54
SMLIB is just old, little outdated.
*edit
@Dragokas found updated smlib link