[FS#711] iptables 600-shared-libext.patch broken and incomplete

[LEDE Bugs]

The following task has a new comment added:

FS#711 - iptables 600-shared-libext.patch broken and incomplete
User who did this - David (davidkongri)

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In my case the error that throws me when compiling is the following one: " *** No rule to make target '../extensions/libext.a', needed by 'xtables-compat-multi'. "
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=711#comment2991