Avoid spurious non-fatal install errors for OS X frameworks:

for a framework install, the python shared library is installed in
the frameworkinstallstructure target, not in altbininstall.

Makefile.pre.in

@@ -945,7 +945,7 @@ altbininstall: $(BUILDPYTHON)
 		fi; \
 		(cd $(DESTDIR)$(BINDIR); $(LN) python$(LDVERSION)$(EXE) python$(VERSION)$(EXE)); \
 	fi
-	if test -f $(LDLIBRARY); then \
+	if test -f $(LDLIBRARY) && test "$(PYTHONFRAMEWORKDIR)" = "no-framework" ; then \
 		if test -n "$(DLLLIBRARY)" ; then \
 			$(INSTALL_SHARED) $(DLLLIBRARY) $(DESTDIR)$(BINDIR); \
 		else \