1. git clone –depth 1 https://github.com/SWRT-dev/qca-toolchains

2. cd qca-toolchains

3. sudo ln -sf $(pwd)/openwrt-gcc463.arm /opt/

4. sudo ln -sf $(pwd)/openwrt-gcc520_musl.arm /opt/

5. sudo ln -sf $(pwd)/openwrt-gcc520_musl.aarch64 /opt/

6. sudo ln -sf $(pwd)/toolchain-aarch64_cortex-a53_gcc-5.2.0_musl /opt/

7. sudo ln -sf $(pwd)/toolchain-arm_cortex-a7_gcc-5.2.0_musl_eabi /opt/

8. sudo ln -sf $(pwd)/toolchain-aarch64_cortex-a53+neon-vfpv4_gcc-8.3.0_musl /opt/

9. sudo ln -sf $(pwd)/toolchain-arm_cortex-a7_gcc-8.5.0_musl-1.1.24_eabi /opt/

10. sudo ln -sf $(pwd)/openwrt-gcc750_musl1124.aarch64 /opt/