.. None worked :(

I wonder why nothing worked.
I take it that libsybct.lib and libsybcs.lib are in the same directory as libsybtcl.lib, libsybintl.lib and libsybblk.lib.
It seems very odd that some are being located, but others are not.

Try creating copies of libsybct.lib and libsybcs.lib (in the same folder as those two files ), named libsybct.a and libsybcs.a.
Then specify the '-l' switches as -lsybct and -lsybcs
And see what happens then.

Cheers,
Rob