#41 Compliling fails using GCC-15

[Sergei Golovan]

Hi!

GCC 15 adds the new bool type, which makes BLT failing to build because it has some variables named bool in the sources. Also, gcc 15 complains about incorrect prototype in one case. The attached patch defines the "bool" macro to make BLT compilable, but maybe it's not the baest way of fixing the bug. I think it'd be better to rename the variables. The secont part of the patch fixes a function prototype.