[Gm2] gm2 on openbsd 5.2 i386 fails

[Noam Kloos]

After succesfull install of gm2 on openbsd sparc i tried an i386 box.
the error i get while building is: conflicting types for alloca
i have spend an amount of time to try and fix this but did not succeed
hope there is someone around who did successfully make this build
and likes to give the solution to this problem.