Fix issue 38: the BSD make does not understand $^, so just spell out the inputs manually.
Fix issue 38: the BSD make does not understand $^, so just spell out the
inputs manually.

* Makefile.in:
  (TARGET_LIB): use $(OBJECTS) instead of $^
  (test/serf_*): replace $^ with explicit list of inputs

jandre/serf,jandre/serf,jandre/serf,jandre/serf