Martin, I believe this is the patch we want. After we talked I realized that the order-only dependency actually is in effect and what we were seeing it was the correct behaviour. So, I am attaching it here. What it does is that the deps are depending on the existence on the config.h file (not its age).
Addressing: http://issues.apache.org/jira/browse/STDCXX-85 ChangeLog entry: 2005-12-30 Liviu Nicoara <[EMAIL PROTECTED]> * GNUMakefile: removed useless rules: all, builddir, added rule lib, added variable INCDIR * etc/config/makefile.rules: added order-only dependency on ($INCDIR)/config.h for .d files Happy New Year! Liviu Martin Sebor wrote: > Liviu Nicoara wrote: > [...] > >>Please let me know if you see any more problems with it. > > [...] > >>+config: >>+ $(MAKE) -C$(INCDIR) >>+ > > > While this might be the right thing to do(*) I think it will become > a problem -- reading in and processing the entire GNUmakefile.cfg > every time make is invoked in either the examples or tests > subdirectories will be prohibitively expensive on slow systems. > > (*) If we did decide to go this route, we'd need to do the same > thing for the other dependencies, i.e., the library and, for tests, > the test driver. That will slow things down even more. > > >> # rule to make dependencies for C++ source files >>-$(DEPENDDIR)/%.d: %.cpp >>+$(DEPENDDIR)/%.d: %.cpp config > > > I would try this instead: > > $(DEPENDDIR)/%.d: %.cpp | config > > Martin >
