target permissions

Hey guys,

fourth patchset to fix the target permissions variability.

I checked (to the best of my knowledge) every 'cp' and 'rsync' call under package/. There are two bigs cases:

(1) Copies from the package or download directory to the build directory (example: cache-calibrator, fan-ctrl, ramspeed, samba4). They are OK, since they copy source code, a Makefile or some other build files. These files _shouldn't_ affect the result, so I left them the way they are. We can change them if you agree, but I thought it'd be too much noise for now.

(2) Copies from anything under output/ to the target. These should all be fine. Since we now build with a controlled umask and reset any permissions that could vary (tar files don't vary), we shouldn't observe any variability under output/ (modulo (1)-kind copies).

I tested parallel builds with this, as Yann suggested, and they seem to work the same, which is expected since we just wrap everything at the top level.

Differences from v3 are:

- Recursive running of make is done with $(MAKE), and not using --no-print-directory. Also, change the "%" rule in "$(MAKECMDGOALS)" to properly detect phony rules.

- Use --chmod on the external toolchain's rsync, to prevent any weird permissions coming from there. This isn't stricly necessary, since the toolchain libs are copied to the target via 'install', which won't depend on any existing permissions. But this way we're safer in case anything changes in the future. Also we make sure everything under output/ is controlled.

- Fix some cp's to the target from non-controlled dirs on boot/grub/grub.mk, fs/iso9660/iso9660.mk, and board/boundarydevices/nitrogen6x/post-build.sh

- Fifth patch dropped as it was accepted.

- Added the umask setting in the Makefile generated in the $(O) dir. This is just an optimization so we don't have another level of 'make' running.

- Fixed 'install' call on matchbox-keyboard patch (#4)

Thanks!

---

Guido Mart?nez (9):
Makefile: don't depend on the umask
Makefile: don't depend on current skeleton/overlay permissions toolchain/helpers.mk: use --chmod on rsync pkg-generic.mk: don't depend on external package permissions
package: matchbox-keyboard: use install instead of cp
scripts: mkmakefile: set umask before calling BR's makefile
nitrogen6x: use install instead of cp
boot/grub: use install instead of cp
fs/iso9660: use install instead of cp

 Makefile                                              | 19 +++++++++++++++++--
 board/boundarydevices/nitrogen6x/post-build.sh        |  6 +++---
 boot/grub/grub.mk                                     | 14 +++++++-------
 fs/iso9660/iso9660.mk                                 | 16 +++++++++-------
 .../matchbox/matchbox-keyboard/matchbox-keyboard.mk   |  2 +-
 package/pkg-generic.mk                                |  2 +-
 support/scripts/mkmakefile                            |  2 +-
 toolchain/helpers.mk                                  |  2 +-
 8 files changed, 40 insertions(+), 23 deletions(-)