src/util/Makefile: explicitly reset LINK to not use libtool
Simply looking at libtool redefines LINK globally to use libtool, which when you're trying to cross-compile to Windows can cause complications.
As in src/util/ we're simply building a small binary for the build host, reset LINK to the automake default so that the traditional compile/link steps occur without libtool.
Also remove -all-static from LDFLAGS as that is a libtool-specific argument intended to solve this problem.
Closes: #100 (closed) Signed-off-by: Ross Burton ross.burton@intel.com