Re: [Gnu-arch-users] Re: Build System links/ recommendations

[Jan Hudec]

On Sun, Sep 05, 2004 at 02:12:38 +0200, Robin Farine wrote:
> On Sunday 05 September 2004 00.15, Andrew Suffield wrote:
> > Other approaches exist. This is the one I use. I'm not very
> > familiar with the others; I'd have to spend a couple hours
> > working it out, and I really don't have the time.
> 
> This looks too simple so I must have missed something, but it looks 
> like it is equivalent.
> 
> 
> * toplevel Makefile:
> 
> myprog: subdir/mylib
>       touch $@
> 
> subdir/mylib: subdir-libs
> 
> .PHONY: subdir-libs
> subdir-libs:
>       $(MAKE) -C subdir libs
> 
> 
> * subdir Makefile:
> 
> .PHONY: libs
> libs: mylib
> 
> mylib:
>       touch $@

So try it ;-). You'll find out it isn't. It checks the timestamp on
subdir/mylib too early and even if the subdir makefile does something,
myprog is not relinked.

-------------------------------------------------------------------------------
                                                 Jan 'Bulb' Hudec 
<address@hidden>

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