Le 18 janv. 2012 à 22:10, Jim Meyering a écrit : > [Side note, I liked how bison uses automake's subdir-objects feature > (i.e., added efficiency of no recursive make invocations) enough that > I've converted cppi to work the same way. ]
Actually that's not the only benefit: another very significant one is the correctness of the dependencies across directories (e.g., the doc/ man page depend on having the src/ binary ready to run --help, which requires its lib/ library etc.). Which in turn provides more effective -j JOBS, since the less directories you have, the less serialization you have. In the project I work on at Gostai it makes a huge difference. There's a cost though: the Makefile generated by Automake no longer uses pattern-rules, but many replicated rules for each target. And then you can feel Make having a hard time loading the file :( I would really love an AUTOMAKE_OPTIONS = GNU-Make that would use %-pattern rules and drop all this useless (for me) overhead.
