Quite right, it is indeed... For some reason Sourceforge is claiming that 4.1.0 is the latest release.
Also mentioned in support request #19: https://sourceforge.net/p/linux-gpib/support-requests/19/
This is down to the GPIB driver using an old kernel API which was deprecated in 4.15.0. I've opened bug #67 for this.
Does this happen on e.g. a desktop PC too? From memory the RPi uses a Synopsys USB host controller IP core in its SoC. I've seen issues with this core and high-bandwidth USB devices on other platforms.
Build failure on kernel 4.15.0
Error encountered in function parseBidHistory in history.c line 181
Turned out to be an incorrectly pasted password. Not a bug, can be closed.
Error encountered in function ebayLogin in auction.c line 658