Copy libzmq dylib files

This should fix ticket:4457

Author: sjoelund

Makefile.common

@@ -263,6 +263,8 @@ libzmq:
 	(rm -f $(builddir_lib_omc)/$(LIBZMQLIB)*)
 	(rm -f $(builddir_bin)/$(LIBZMQLIB)*)
 	(cp -af 3rdParty/libzmq/build/lib/$(LIBZMQLIB)* $(builddir_lib_omc))
+	# Darwin has to be special always; libzmq*.dylib while Linux is libzmq.so* ...
+	(test ! `uname` = Darwin || cp -af 3rdParty/libzmq/build/lib/lib*.dylib $(builddir_lib_omc))
 ifeq ($(SHREXT),.dll)
 	(cp -af 3rdParty/libzmq/build/lib/$(LIBZMQLIB)* $(builddir_bin))
 endif