[FS#50] No image or non-verbose output created if image is too big

[LEDE Bugs]

The following task has a new comment added:

FS#50 - No image or non-verbose output created if image is too big
User who did this - Hannu Nyman (hnyman)

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It might be finally possible to "fix" this, the there is now the separate CONFIG_BUILDBOT symbol in LEDE. 

In buildbot the build needs to fail silently and the build should continue, as the other images from the same target need to be built, even if one router fails.

But I guess that in private builds (when CONFIG_BUILDBOT is not set), the failure might be seen as more fatal and could stop the build process.

The silently failing builds due to "too big" has been a frequent topic in forums, so fixing this might help a lot of people.

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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=50#comment2053