[#453] Document how to make cross-compilation work with buildroot

[jerry-xie-000]

Notes for Reviewer

Refer to: https://github.com/eclipse-iceoryx/iceoryx2/issues/453.

Write the steps how to make cross-compilation work with buildroot.

Pre-Review Checklist for the PR Author

1. [x] Add sensible notes for the reviewer
2. [x] PR title is short, expressive and meaningful
3. [x] Relevant issues are linked in the References section
4. [x] Every source code file has a copyright header with SPDX-License-Identifier: Apache-2.0 OR MIT
5. [ ] Branch follows the naming format (iox2-123-introduce-posix-ipc-example)
6. [ ] Commits messages are according to this guideline
   • [ ] Commit messages have the issue ID ([#123] Add posix ipc example)
   • [ ] Commit author matches Eclipse Contributor Agreement (and ECA is signed)
7. [ ] Tests follow the best practice for testing
8. [ ] Changelog updated in the unreleased section including API breaking changes
9. [x] Assign PR to reviewer
10. [ ] All checks have passed (except task-list-completed)

Checklist for the PR Reviewer

• [x] Commits are properly organized and messages are according to the guideline
• [ ] Unit tests have been written for new behavior
• [ ] Public API is documented
• [x] PR title describes the changes

Post-review Checklist for the PR Author

1. [ ] All open points are addressed and tracked via issues

References

Closes #453

[elBoberido]

@jerry-xie-000 can you also change the commit message to [#435] How to make cross-compilation work with buildroot so that the commit can easily be linked to the respective issue.

[jerry-xie-000]

I register an eclipse account and sign the ECA agreement and include my github name, but eclipsefdn/eca still fail to find my github name.

[elBoberido]

I register an eclipse account and sign the ECA agreement and include my github name, but eclipsefdn/eca still fail to find my github name.

@jerry-xie-000 it might take a day to sync everything. If the check still fails after tomorrow, I'll get in contact with the Eclipse Foundation.

[elBoberido]

@jerry-xie-000 did the account, you signed the ECA with, use the same e-mail address like you used for the commits?

[jerry-xie-000]

Run internal/scripts/check_markdown_linting.sh， seems it's ok now.

$ internal/scripts/check_markdown_linting.sh 
Running Markdown lint in check mode...
Checking only changed Markdown files...
The following Markdown files will be checked:
FAQ.md
FAQ_ICEORYX_DEVS.md
README.md
doc/bazel/README.md
doc/cross-compile/buildroot.md
doc/how-to-create-an-iceoryx2-release.md
doc/release-notes/iceoryx2-unreleased.md
examples/README.md
examples/c/event_multiplexing/README.md
examples/cxx/event_multiplexing/README.md
examples/rust/event_multiplexing/README.md
-----------------------------------
\nRunning markdownlint to check for issues...
\nMarkdown lint check completed successfully.

Feel free to tell me other issues.

[orecham]

@jerry-xie-000 Looks good, just need to get that ECA check passing.

Have you had a chance to confirm the comment from @elBoberido:

@jerry-xie-000 did the account, you signed the ECA with, use the same e-mail address like you used for the commits?

Oh and you will need to reword the commits so that they all have the prefix [#453], according to the PR template. You could just squash them all and use the one commit message [#453] Document how to make cross-compilation work with buildroot

[jerry-xie-000]

@jerry-xie-000 Looks good, just need to get that ECA check passing.

Have you had a chance to confirm the comment from @elBoberido:

@jerry-xie-000 did the account, you signed the ECA with, use the same e-mail address like you used for the commits?

Yes, I singed in ECA and github with the same email address. The GitHub username in ECA setting page which is same like github: jerry-xie-000. But the ECA check still fail.

[elBoberido]

@jerry-xie-000 the ECA Validation Tool does not find jerry-xie-000. Your Eclipse user name should also not contain dashes but only alpha-numeric characters. Please try to log in and check the Eclipse user name.