New: External tree with BR 2016.11 does not work anymore

Buildroot bugzilla at busybox.net 1 participant 5 messages Jan 12, 2017 – Jan 16, 2017

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author

2017-01-12 16:26 UTC #0 lore raw

https://bugs.busybox.net/show_bug.cgi?id=9576

Bug ID: 9576
Summary: External tree with BR 2016.11 does not work anymore
Product: buildroot
Version: 2016.11
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Other
Assignee: unassigned at buildroot.uclibc.org
Reporter: outtierbert at gmail.com
CC: buildroot at uclibc.org
Target Milestone: ---

Hi all,

I am using an external tree with buildroot. My external tree is in a seperate git repository and the buildroot source is fetched as a git submodule:

./
??? board
??? ??? board definitions...
??? buildroot
??? ??? arch
??? ??? board
??? ??? boot
??? ??? CHANGES
??? ??? Config.in
??? ??? Config.in.legacy
??? ??? configs
??? ??? COPYING
??? ??? DEVELOPERS
??? ??? dl
??? ??? docs
??? ??? fs
??? ??? linux
??? ??? Makefile
??? ??? Makefile.legacy
??? ??? output
??? ??? package
??? ??? README
??? ??? support
??? ??? system
??? ??? toolchain
??? Config.in
??? configs
??? ??? my_defconfig
??? ??? several_defconfig
??? external.desc
??? external.mk
??? package
??? ??? custom package 1
??? ??? custom package 2
??? README.md

This tree was working fine with buildroot 2016.08. To compile, I go into the /buildroot directory and run: make BR2_EXTERNAL=../ my_defconfig O=output/my_output and then make O=output/my_output

I followed the buildroot user manual on how to adapt an external tree for buildroot 2016.11. I created the external.desc file and changed every reference to $(BR2_EXTERNAL) to $(BR2_EXTERNAL_MY_EXTERNAL_TREE_PATH). Howver, now building does not work anymore. I get an infinite loop when making like in the snippet below. Can you help me diagnose the problem?

Updating goal targets....
Considering target file 'my_defconfig'.
File 'my_defconfig' does not exist.
Looking for an implicit rule for 'my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite '..//configs/my_defconfig'.
Trying rule prerequisite 'prepare-kconfig'.
Found an implicit rule for 'my_defconfig'.
Considering target file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Looking for an implicit rule for
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying pattern rule with stem 'c'.
Found an implicit rule for
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Finished prerequisites of target file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
No need to remake target
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Considering target file '..//configs/my_defconfig'.
Looking for an implicit rule for '..//configs/my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite '..//configs/..//configs/my_defconfig'.
Trying rule prerequisite 'prepare-kconfig'.
Found an implicit rule for '..//configs/my_defconfig'.
Pruning file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Considering target file '..//configs/..//configs/my_defconfig'.
Looking for an implicit rule for '..//configs/..//configs/my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite
'..//configs/..//configs/..//configs/my_defconfig'.
Trying rule prerequisite 'prepare-kconfig'.
Found an implicit rule for '..//configs/..//configs/my_defconfig'.
Pruning file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Considering target file
'..//configs/..//configs/..//configs/my_defconfig'.
Looking for an implicit rule for
'..//configs/..//configs/..//configs/my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite
'..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying rule prerequisite 'prepare-kconfig'.
Found an implicit rule for
'..//configs/..//configs/..//configs/my_defconfig'.
Pruning file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Considering target file
'..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Looking for an implicit rule for
'..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite
'..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying rule prerequisite 'prepare-kconfig'.
Found an implicit rule for
'..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Pruning file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Considering target file
'..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Looking for an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying rule prerequisite 'prepare-kconfig'.
Found an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Pruning file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Considering target file
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Looking for an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying rule prerequisite 'prepare-kconfig'.
Found an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Pruning file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Considering target file
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Looking for an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying rule prerequisite 'prepare-kconfig'.
Found an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Pruning file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Considering target file
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Looking for an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying rule prerequisite 'prepare-kconfig'.
Found an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Pruning file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Considering target file
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Looking for an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying rule prerequisite 'prepare-kconfig'.
Found an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Pruning file
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Considering target file
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Looking for an implicit rule for
'..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/..//configs/my_defconfig'.
Trying pattern rule with stem 'my'.
Trying rule prerequisite
'/home/user/development/external-buildroot-tree/buildroot/output/my_output_folder/build/buildroot-config/conf'.
Trying implicit prerequisite '..//configs/..//

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bugzilla at busybox.net

author

2017-01-12 20:12 UTC #1 lore raw

[Buildroot] [Bug 9576] External tree with BR 2016.11 does not work anymore

https://bugs.busybox.net/show_bug.cgi?id=9576

Yann E. MORIN <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

           Assignee|unassigned at buildroot.uclibc |yann.morin.1998 at free.fr
                   |.org                        |
                 CC|                            |yann.morin.1998 at free.fr

--- Comment #1 from Yann E. MORIN <[email protected]> --- Hello,

OK, I could reproduce the issue on a minimal br2-external tree. I'll investigate.

In the meantime, you can workaround this problem by using an absolute path to your br2-external tree:

    $ make BR2_EXTERNAL=$(cd ..; pwd) O=output/my-output my_defconfig

Thanks for the report!

Regards,
Yann E. MORIN.

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bugzilla at busybox.net

author

2017-01-12 20:35 UTC #2 lore raw

[Buildroot] [Bug 9576] External tree with BR 2016.11 does not work anymore

In reply to bugzilla at busybox.net

https://bugs.busybox.net/show_bug.cgi?id=9576

--- Comment #2 from Yann E. MORIN <[email protected]> --- Created attachment 6846
--> https://bugs.busybox.net/attachment.cgi?id=6846&action=edit
Canonicalise paths to br2-external trees

Hello,

Could please try the attached patch?

Regards,
Yann E. MORIN.

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2017-01-13 09:35 UTC #3 lore raw

[Buildroot] [Bug 9576] External tree with BR 2016.11 does not work anymore

In reply to bugzilla at busybox.net

https://bugs.busybox.net/show_bug.cgi?id=9576

--- Comment #3 from outtierbert at gmail.com ---
Yes, the patch works perfectly! Thanks a lot!

Kind regards,
Bert

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2017-01-16 13:00 UTC #4 lore raw

[Buildroot] [Bug 9576] External tree with BR 2016.11 does not work anymore

In reply to bugzilla at busybox.net

https://bugs.busybox.net/show_bug.cgi?id=9576

Peter Korsgaard <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #4 from Peter Korsgaard <[email protected]> --- Fixed in git, thanks:

https://git.buildroot.net/buildroot/commit/?id=05576fca13b129da8c7186ee2307981135d3391f

I will also include it in the upcoming 2016.11.2 bugfix release.

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