=> Bootstrap dependency digest>=20010302: found digest-20121220
===> Building for lp_solve-5.5.2.0
=> Substituting "dl" in lp_solve/ccc lpsolve55/ccc demo/ccc
../lp_utils.c:8:23: error: sys/timeb.h: no such file or directory
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/math/lp_solve
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/math/lp_solve