[FS#658] umdns init error during build

[LEDE Bugs]

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

User who did this - Nathaniel Wesley Filardo (nwf) 

Attached to Project - LEDE Project
Summary - umdns init error during build
Task Type - Bug Report
Category - Packages
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Very Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - During a build of LEDE HEAD as of right now (git describe says reboot-3906-g2a2dfb2be7), with umdns selected, during some post-configuration phase, the umdns init file is invoked and promptly fails with ".../etc/init.d/umdns: line 4: /lib/functions/network.sh: No such file or directory", as expected on a build machine that isn't itself running LEDE/OpenWRT.

For context, here's the surrounding lines of the build:
Configuring collectd-mod-df.
Configuring kmod-ledtrig-netdev.
Setting flags for package libc to hold.
Setting flags for package libgcc to hold.
Setting flags for package libpthread to hold.
Setting flags for package librt to hold.
make[3]: Entering directory '/tank/openwrt/scratch/builder-webserver'
make[3]: Nothing to be done for 'package/preconfig'.
make[3]: Leaving directory '/tank/openwrt/scratch/builder-webserver'
cp -fpR /tank/openwrt/scratch/builder-webserver/build_dir/target-arm_xscale_musl_eabi/root-kirkwood /tank/openwrt/scratch/builder-webserver/build_dir/target-arm_xscale_musl_eabi/root.orig-kirkwood
/tank/openwrt/scratch/builder-webserver/build_dir/target-arm_xscale_musl_eabi/root-kirkwood/etc/init.d/umdns: line 4: /lib/functions/network.sh: No such file or directory
./etc/init.d/umdns: line 4: /lib/functions/network.sh: No such file or directory
sed -i "s/Installed-Time: .*/Installed-Time: 1490645168/" /tank/openwrt/scratch/builder-webserver/build_dir/target-arm_xscale_musl_eabi/root-kirkwood/usr/lib/opkg/status
rm -f /tank/openwrt/scratch/builder-webserver/build_dir/target-arm_xscale_musl_eabi/root-kirkwood/usr/lib/opkg/lists/*
rm -f /tank/openwrt/scratch/builder-webserver/build_dir/target-arm_xscale_musl_eabi/root-kirkwood/usr/lib/opkg/info/*.postinst*
rm -f /tank/openwrt/scratch/builder-webserver/build_dir/target-arm_xscale_musl_eabi/root-kirkwood/usr/lib/opkg/info/*.prerm*
make[2]: Leaving directory '/tank/openwrt/scratch/builder-webserver'


More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=658