I'm adding toolchain to OpenWRT reference to this page
$ ./scripts/feeds update -a
$ ./scripts/feeds install -a
$ make -j1 V=s
Installing base-files (196-r9104-fe7d965) to root...
Installing libgcc ((null)-1) to root...
Installing libc ((null)-1) to root...
Installing libssp ((null)-1) to root...
Installing libpthread ((null)-1) to root...
Installing librt ((null)-1) to root...
Installing libubox20170601 (2018-07-25-c83a84af-2) to root...
Installing libuci (2018-08-11-4c8b4d6e-1) to root...
Installing libnl-tiny (0.1-5) to root...
Installing libubus20170705 (2018-10-06-221ce7e7-1) to root...
Installing libjson-c (0.12.1-2) to root...
Installing libblobmsg-json (2018-07-25-c83a84af-2) to root...
Installing ubusd (2018-10-06-221ce7e7-1) to root...
Installing ubus (2018-10-06-221ce7e7-1) to root...
Installing jshn (2018-07-25-c83a84af-2) to root...
Installing netifd (2018-12-16-2750ce2e-1) to root...
Installing libjson-script (2018-07-25-c83a84af-2) to root...
Installing ubox (2018-12-18-876c7f5b-1) to root...
Installing procd (2018-11-23-d6673547-1) to root...
Installing jsonfilter (2018-02-04-c7e938d6-1) to root...
Installing usign (2015-07-04-ef641914-1) to root...
Installing openwrt-keyring (2018-05-18-103a32e9-1) to root...
Installing fstools (2018-12-28-af93f4b8-4) to root...
Installing fwtool (1) to root...
Installing kernel (4.19.16-1-f3c1285da2c89cf07a3c00222ad14ba3) to root...
Installing kmod-lib-crc-ccitt (4.19.16-1) to root...
Installing kmod-slhc (4.19.16-1) to root...
Installing kmod-ppp (4.19.16-1) to root... [142/144058]
Installing kmod-pppox (4.19.16-1) to root...
Installing kmod-pppoe (4.19.16-1) to root...
Package libc ((null)-1) installed in root is up to date.
Package libgcc ((null)-1) installed in root is up to date.
Package libssp ((null)-1) installed in root is up to date.
Package libpthread ((null)-1) installed in root is up to date.
Package librt ((null)-1) installed in root is up to date.
Installing libip4tc0 (1.8.2-2) to root...
Installing libxtables12 (1.8.2-2) to root...
Installing libip6tc0 (1.8.2-2) to root...
Package libxtables12 (1.8.2-2) installed in root is up to date.
Package fstools (2018-12-28-af93f4b8-4) installed in root is up to date.
Package fwtool (1) installed in root is up to date.
Installing mtd (23) to root...
Package libjson-c (0.12.1-2) installed in root is up to date.
Package libnl-tiny (0.1-5) installed in root is up to date.
Package libubox20170601 (2018-07-25-c83a84af-2) installed in root is up to date.
Package libblobmsg-json (2018-07-25-c83a84af-2) installed in root is up to date.
Package jshn (2018-07-25-c83a84af-2) installed in root is up to date.
Package libjson-script (2018-07-25-c83a84af-2) installed in root is up to date.
Installing libuclient20181124 (2018-11-24-3ba74ebc-1) to root...
Installing uclient-fetch (2018-11-24-3ba74ebc-1) to root...
Installing firewall (2019-01-02-70f8785b-2) to root...
Package netifd (2018-12-16-2750ce2e-1) installed in root is up to date.
Installing odhcp6c (2019-01-11-d2e247d8-16) to root...
Installing dnsmasq (2.80-6) to root...
Installing dropbear (2017.75-9) to root...
Installing odhcpd-ipv6only (2019-01-16-0a367680-3) to root...
Installing ppp (2.4.7-14) to root...
Installing ppp-mod-pppoe (2.4.7-14) to root...
Package openwrt-keyring (2018-05-18-103a32e9-1) installed in root is up to date.
Installing opkg (2019-01-18-7708a01a-1) to root...
Package procd (2018-11-23-d6673547-1) installed in root is up to date.
Package ubox (2018-12-18-876c7f5b-1) installed in root is up to date.
Installing logd (2018-12-18-876c7f5b-1) to root...
Package libubus20170705 (2018-10-06-221ce7e7-1) installed in root is up to date.
Package ubus (2018-10-06-221ce7e7-1) installed in root is up to date.
Package ubusd (2018-10-06-221ce7e7-1) installed in root is up to date. [104/144058]
Installing uci (2018-08-11-4c8b4d6e-1) to root...
Package libuci (2018-08-11-4c8b4d6e-1) installed in root is up to date.
Package usign (2015-07-04-ef641914-1) installed in root is up to date.
Installing busybox (1.30.0-4) to root...
Package jsonfilter (2018-02-04-c7e938d6-1) installed in root is up to date.
Configuring libgcc.
Configuring libc.
Configuring libssp.
Configuring libpthread.
Configuring librt.
Configuring libubox20170601.
Configuring libuclient20181124.
Configuring uclient-fetch.
Configuring opkg.
Configuring libubus20170705.
Configuring libjson-c.
Configuring libblobmsg-json.
Configuring ubusd.
Configuring ubus.
Configuring busybox.
Configuring kernel.
Configuring kmod-lib-crc-ccitt.
Configuring kmod-slhc.
Configuring kmod-ppp.
Configuring kmod-pppox.
Configuring kmod-pppoe.
Configuring libuci.
Configuring libnl-tiny.
Configuring jshn.
Configuring netifd.
Configuring libjson-script.
Configuring ubox.
Configuring procd.
Configuring jsonfilter.
Configuring usign.
Configuring openwrt-keyring.
Configuring fstools.
Configuring fwtool.
Configuring base-files.
Configuring dnsmasq.
Configuring libxtables12.
Configuring odhcp6c.
Configuring uci.
Configuring libip4tc0.
Configuring dropbear.
Configuring mtd.
Configuring odhcpd-ipv6only.
Configuring ppp.
Configuring logd.
Configuring libip6tc0.
Configuring ppp-mod-pppoe.
Collected errors:
* satisfy_dependencies_for: Cannot satisfy the following dependencies for firewall:
* kmod-ipt-core
* kmod-ipt-conntrack
* kmod-nf-conntrack6
* kmod-ipt-nat
* opkg_install_cmd: Cannot install package firewall.
package/Makefile:65: recipe for target 'package/install' failed
make[2]: *** [package/install] Error 255
how can i fix this problem?