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Recursive make and variations on the theme

From
Jonathan Nieder <jrnieder@gmail.com>
Date
Feb 23, 2011, 09:56 UTC
Message-ID
<20110223095650.GE30485@elie>
In-Reply-To
<20110223084329.GA10738@sigill.intra.peff.net>
Jeff King wrote:
Show 9 quoted lines
> The problem is that no single make was
> allowed to see the whole dependency tree.
>
> I know GNU make does have some magic for communicating between recursive
> makes. Does it handle this situation?
>
> You can fix this with a rule like "only invoke recursive makes on
> directories _below_ you, never above or to the side". But then you can't
> run "make" from inside cmds/.

In that story, commands/Makefile would make commands/built-in.a and various commands/foo.o. The toplevel makefile would pass "make -C commands" a long list of targets to build, presumably deduced from $(MAKECMDGOALS). Not pleasant, I agree.

Show 5 quoted lines
>>      - keep careful track of what directory "make" was run from; [*]
>> [...]
>>     [*] is a little hazy and sounds hackish.
>
> Yeah, you have to be careful with paths.

It could be pretty simple by maintaining a $(prefix_) variable representing the path from the cwd to the directory containing the makefile. Might try it out.

> I think a more sane way would
> be a single top-level Makefile that [...] contains everything
That sounds best to me in the short term, too.
> A dummy Makefile in each subdir that cd's to the toplevel and runs a
> specific target. So from the top-level, "make" would build everything,
> "make lib" would build stuff in the lib directory, and the Makefile in
> lib/ would just do "cd .. && make lib".
Yes, reasonable.

Ciao, Jonathan

Previous: Jeff KingNext: Junio C Hamano
Message 38 of 54 in “Move test-*.c to test/ subdirectory”
  1. Move test-*.c to test/ subdirectoryNguyễn Thái Ngọc Duy, Feb 9, 2011
  2. Nguyen Thai Ngoc DuyFeb 9, 2011
  3. Junio C HamanoFeb 9, 2011
  4. Move test-* to t/helper/ subdirectoryNguyễn Thái Ngọc Duy, Feb 10, 2011
  5. 0/3 Thinning the git toplevel directoryJonathan Nieder, Feb 18, 2011
  6. 1/3 Move libgit.a sources into a libgit/ subdirectoryJonathan Nieder, Feb 18, 2011
  7. Nguyen Thai Ngoc DuyFeb 18, 2011
  8. Jonathan NiederFeb 18, 2011
  9. Jeff KingFeb 18, 2011
  10. Jonathan NiederFeb 18, 2011
  11. Nguyen Thai Ngoc DuyFeb 18, 2011
  12. 2/3 Move test-* into a test-programs/ subdirectoryJonathan Nieder, Feb 18, 2011
  13. 3/3 Move header files into a include/ subdirectoryJonathan Nieder, Feb 18, 2011
  14. Nguyen Thai Ngoc DuyFeb 18, 2011
  15. 6/3 Move remaining header files into a include/ subdirectoryJonathan Nieder, Feb 18, 2011
  16. 4/3 compat: do not use relative paths to refer to git-compat-util.h et alJonathan Nieder, Feb 18, 2011
  17. 5/3 block-sha1: do not use relative path for git-compat-util.hJonathan Nieder, Feb 18, 2011
  18. 6/3 Move git-compat-util.h, strbuf.h, and cache.h to include/Jonathan Nieder, Feb 18, 2011
  19. Nguyen Thai Ngoc DuyFeb 18, 2011
  20. 9/3 Thinning the git toplevel directoryJonathan Nieder, Feb 18, 2011
  21. 7/3 Move test-sha1.sh to test-programs/Jonathan Nieder, Feb 18, 2011
  22. 8/3 Move build helpers to scripts/ subdirectoryJonathan Nieder, Feb 18, 2011
  23. 9/3 Move non-builtin git commands and script libraries to a subdirectoryJonathan Nieder, Feb 18, 2011
  24. Jonathan NiederFeb 18, 2011
  25. Jeff KingFeb 18, 2011
  26. Jonathan NiederFeb 18, 2011
  27. Nguyen Thai Ngoc DuyFeb 18, 2011
  28. Junio C HamanoFeb 18, 2011
  29. Jonathan NiederFeb 19, 2011
  30. Sverre RabbelierFeb 19, 2011
  31. The git_remote_helpers package (Re: [RFC/PATCH 0/3] Thinning the git toplevel directory)Jonathan Nieder, Feb 19, 2011
  32. Jeff KingFeb 22, 2011
  33. Junio C HamanoFeb 22, 2011
  34. Sverre RabbelierFeb 22, 2011
  35. Jeff KingFeb 23, 2011
  36. Jonathan NiederFeb 23, 2011
  37. Jeff KingFeb 23, 2011
  38. Recursive make and variations on the themeJonathan Nieder, Feb 23, 2011
  39. Junio C HamanoFeb 23, 2011
  40. Nicolas PitreFeb 23, 2011
  41. Drew NorthupFeb 23, 2011
  42. Nicolas PitreFeb 24, 2011
  43. Drew NorthupFeb 24, 2011
  44. Nicolas PitreFeb 24, 2011
  45. Jeff KingFeb 24, 2011
  46. Drew NorthupFeb 24, 2011
  47. Piotr KrukowieckiFeb 19, 2011
  48. Junio C HamanoFeb 19, 2011
  49. Jonathan NiederFeb 19, 2011
  50. Piotr KrukowieckiFeb 19, 2011
  51. Piotr KrukowieckiFeb 19, 2011
  52. Advertising the prebuilt htmldocs and manpagesJonathan Nieder, Feb 19, 2011
  53. Junio C HamanoFeb 20, 2011
  54. Jonathan NiederFeb 20, 2011

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