New: Adding dependencies from an external tree does not work
https://bugs.busybox.net/show_bug.cgi?id=14656
Bug ID: 14656
Summary: Adding dependencies from an external tree does not
work
Product: buildroot
Version: unspecified
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Other
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
When a dependency is added by a Makefile in an external tree to a package present in the Buildroot tree, the dependency does not get built before the package.
Detailled description:
When having the following in an external tree:
FOO_DEPENDENCIES += bar
FOO_FINAL_ALL_DEPENDENCIES gets updated and will contain bar (as shown by running make foo-show-depends) but this will not be reflected in the build order (as shown in make foo-show-build-order).
In the package/pkg-generic.mk file [1] there is a call to patsubst that will compute the prerequisites for foo-show-build-order.
When printing the output of pathsubst with
echo $$(patsubst %,%-show-build-order,$$($(2)_FINAL_ALL_DEPENDENCIES))
the value is properly written out and will contain bar. However, the prerequisite is not present when printing them out with
echo $$^
[1] https://git.buildroot.org/buildroot/tree/package/pkg-generic.mk#n996
Links:
- first mailing list post:
https://lists.buildroot.org/pipermail/buildroot/2022-February/637237.html
- second mailing list post:
https://lists.buildroot.org/pipermail/buildroot/2022-March/638117.html
- minimal example: https://gitlab.com/dopsi/mve-br2-external-dep
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[Buildroot] [Bug 14656] Adding dependencies from an external tree does not work
https://bugs.busybox.net/show_bug.cgi?id=14656
--- Comment #1 from Simon Doppler <[email protected]> ---
Workaround: It is possible to build bar first and then building the entire system.
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[Buildroot] [Bug 14656] Adding dependencies from an external tree does not work
In reply to [email protected]https://bugs.busybox.net/show_bug.cgi?id=14656
Yann E. MORIN <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |[email protected]
Resolution|--- |WONTFIX--- Comment #2 from Yann E. MORIN <[email protected]> --- Simon, All,
As I explained on the list [0], it is not possible to use a br2-external tree to modify the dependencies of a package.
There is for now no way to achieve what you need without directly modifying the original package's .mk file.
(note: there have been a few ideas floated around in the past, but they are far from trivial to apply, if at all.)
Regards,
Yann E. MORIN.
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