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New: every var expansion in a .pc file prepended with sysroot

Buildroot [email protected] 1 participant 5 messages Jun 18, 2023 – Jun 15, 2024

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#0 lore raw

https://bugs.busybox.net/show_bug.cgi?id=15637

            Bug ID: 15637
           Summary: every var expansion in a .pc file prepended with
                    sysroot
           Product: buildroot
           Version: 2023.05
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]

Target Milestone: ---

buildroot seems to have some pkg-config wrapper that adds the sysroot path per every variable expansion.
I have a .pc file that emits -rpath on --libs. rpath with the sysroot prefix doesn't work. How should I get the proper rpath with pkg-config under buildroot? Can buildroot be told to not add sysroot path to some variables?

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#1 lore raw

[Buildroot] [Bug 15637] every var expansion in a .pc file prepended with sysroot

https://bugs.busybox.net/show_bug.cgi?id=15637

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

What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]

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

Quoted 1 line

buildroot seems to have some pkg-config wrapper that adds the sysroot path per every variable expansion.

Yes and no. Basically, that's pkconf (the pkg-config implementation Buildroot is using) thatadds the sysroot prefix to all variable expansions. The wrapper probided by Buildroot just ensure that the proper sysroot is used.

Quoted 1 line

I have a .pc file that emits -rpath on --libs. rpath with the sysroot prefix doesn't work.

Adding an -rpath link option should not be done in a .pc file; that's rather incorrect.

Furthermore, the RPATH is fixed before assembling the filesystem images, so that only RPATH valid on the targt are present (usually, none is needed); see Makefile line 768.

Regards,
Yann E. MORIN

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#2 lore raw

[Buildroot] [Bug 15637] every var expansion in a .pc file prepended with sysroot

In reply to [email protected]

https://bugs.busybox.net/show_bug.cgi?id=15637

--- Comment #2 from stsp <[email protected]> ---

Quoted 2 lines

Adding an -rpath link option should not be done in a .pc file; that's rather incorrect.

What would you suggest instead? This is a plugin library for particular program so it doesn't reside in an ldconfig-known location.
I am not aware of any other way than rpath of hardcoding the non-std locations.

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#3 lore raw

[Buildroot] [Bug 15637] every var expansion in a .pc file prepended with sysroot

In reply to [email protected]

https://bugs.busybox.net/show_bug.cgi?id=15637

--- Comment #3 from stsp <[email protected]> ---

Quoted 1 line

so that only RPATH valid on the targt are present (usually, none is needed);

Maybe it can check if RPATH is
valid on target, by stripping the
sysroot path and checking the result?

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#4 lore raw

[Buildroot] [Bug 15637] every var expansion in a .pc file prepended with sysroot

In reply to [email protected]

https://bugs.busybox.net/show_bug.cgi?id=15637

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

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

         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #4 from Yann E. MORIN <[email protected]> --- Thank you for your report.

The issue tracker for the Buildroot project has been moved to the Gitlab.com issue tracker:
https://gitlab.com/buildroot.org/buildroot/-/issues

We are taking this opportunity to close old issues in this old tracker. If you believe your issue is still relevant, please open one in the new issue tracker.

Thank you!

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