[FS#483] buildbot: lots of packages fail on several platforms due to "C compiler cannot create executables"

[LEDE Bugs]

The following task is now closed:

FS#483 - buildbot: lots of packages fail on several platforms due to "C compiler cannot create executables"
User who did this - Mathias Kresin (mkresin)

Reason for closing: Fixed
More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=483