Here's a patch I made to compile ibcs-3.7 on the 2.6.27 kernel.
I'm not 100% sure of the correctness of some of the changes, but it is working properly for some of my SCO Openserver 5 binaries.
You also need to patch the kernel with the kernel patch I am posting as well, because 2.6.27 no longer exports the uts_sem symbol.
Patch to enable ibcs-3.7 to compile on 2.6.27 kernel.
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