native bool DHookSetFromConf(Handle setup, Handle gameconf, SDKFuncConfSource source, const char[] name);

IIRC, SDKFuncConfSource needs sdktools.inc see https://sm.alliedmods.net/new-api/sdktools/SDKFuncConfSource

I suggest to edit the .INC file doing something about this. Either #include <sdktools> or #tryinclude <sdktools> + #if defined (_..._included) /* ... */ #endif.

Thanks for your great work though!