#22 5.1.3 does not compile on mips or mipsel

[Anonymous]

> ../C/c_interface.c:1332: error: 'BK_B' undeclared (first use in this function)
> ../C/c_interface.c:1332: error: 'BK_CreepFlag' undeclared (first use in this
+function)
> ../C/c_interface.c:1332: error: 'BK_CP' undeclared (first use in this
+function)
> ../C/c_interface.c:1332: error: 'BK_TR' undeclared (first use in this
+function)
> ../C/c_interface.c: In function 'YAP_LeaveGoal':
> ../C/c_interface.c:1430: error: 'BK_H' undeclared (first use in this function)
> ../C/c_interface.c:1430: error: 'BK_HB' undeclared (first use in this
+function)
> ../C/c_interface.c:1430: error: 'BK_B' undeclared (first use in this function)
> ../C/c_interface.c:1430: error: 'BK_CreepFlag' undeclared (first use in this
+function)
> ../C/c_interface.c:1430: error: 'BK_CP' undeclared (first use in this
+function)
> ../C/c_interface.c:1430: error: 'BK_TR' undeclared (first use in this
+function)
> make[1]: *** [c_interface.o] Error 1
> make[1]: Leaving directory `/build/buildd/yap-5.1.3/arch'
> make: *** [build-stamp] Error 2
> dpkg-buildpackage: failure: debian/rules build gave error exit status 2

A full build log can be found at:
http://buildd.debian.org/build.php?arch=mips&pkg=yap&ver=5.1.3-2