From: "kitepilot@kitepilot.com" 
> I have a C++ application scattered over several directories.
> Each leaf directory has its own Makefile. I want to write a
> top-level Makefile that traverses the tree and builds the 
> application.

> Makefile(s) are not one of my talents, and I can't remember how
> to traverse the tree and fire up the nested Makefile(s). 

From the apache Makefile, made a tad less verbose:

SUBDIRS = srclib os server modules support

all:
        list=' $(SUBDIRS) '; \
        for i in $$list; do \
            if test -d "$$i"; then \
                echo "Making all in $$i"; \
                (cd $$i && $(MAKE) ) || exit 1; \
            fi; \
        done;
        if test -z '$(TARGETS)'; then \
            made_local=yes; \
        fi; \
        if test "$$made_local" != "yes"; then \
            $(MAKE) "finish-this-build"; \
        fi

...this should be reasonably obvious.  There's another dependency
that you'll have to fill in, here called finish-this-build, that
does all the rest of it (linking, whatever.)

-- 
Matt G / Dances With Crows
The Crow202 Blog:  http://crow202.org/wordpress/
There is no Darkness in Eternity/But only Light too dim for us to see


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