[FS#808] busybox: regexp related compile errors

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - geresdi (geresdi) 

Attached to Project - LEDE Project
Summary - busybox: regexp related compile errors
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Busybox fails to compile if any of the following config options is enabled (y):

BUSYBOX_CONFIG_FEATURE_VI_REGEX_SEARCH
BUSYBOX_CONFIG_GREP
BUSYBOX_CONFIG_EGREP
BUSYBOX_CONFIG_FGREP
BUSYBOX_CONFIG_XARGS

Busybox version 1.26.2

See the attached .config and build logs. Setting all of the above options to n makes busybox compile.
 

One or more files have been attached.

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=808