Makefile generator: make it possible for Apache modules to depend on external libs without crashing gen-make.py. That state of affairs is not currently exercised, but by the time I've finished making the Apache modules build on Cygwin, it will be.
Makefile generator: make it possible for Apache modules to depend on external
libs without crashing gen-make.py. That state of affairs is not currently
exercised, but by the time I've finished making the Apache modules build on
Cygwin, it will be.

* build/generator/gen_make.py (Generator.write): Check that a dependency node
    is not an external lib before trusting that it will have a filename.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@855101 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion