+# On Darwin, gcc expects shared libraries in *.dylib instead of *.so.
+# Surprisingly, when a program is run, it suffices to have *.so files.
+# We don't want to mess up the whole build system with configurable
+# suffices and we also don't want to incur an overhead on Linux, so we
+# just create symbolic links on Darwin, if requested.
+%.dylib: %.so
+ cd $(dir $<) && ln -fs $(notdir $<) $(notdir $@)
+