Compiling Error with LEDE

I got issue compiling with JUCI with LEDE and got the following errors. The procedure I did is run the openwrt-bootstrap.sh script and run make. I run same steps on the OpenWRT without issue. Do you have any idea on the error "Headers not exportable for the um architecture"?

-fno-plt -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result" INSTALL_HDR_PATH="/home/techspace/lede-juci/source/build_dir/toolchain-x86_64_gcc-5.5.0_musl/linux-dev/" headers_install make[4]: Entering directory '/home/techspace/lede-juci/source/build_dir/toolchain-x86_64_gcc-5.5.0_musl/linux-4.9.70' CHK include/generated/uapi/linux/version.h Makefile:1151: Headers not exportable for the um architecture. Stop. make[4]: Leaving directory '/home/techspace/lede-juci/source/build_dir/toolchain-x86_64_gcc-5.5.0_musl/linux-4.9.70' Makefile:98: recipe for target '/home/techspace/lede-juci/source/build_dir/toolchain-x86_64_gcc-5.5.0_musl/linux-4.9.70/.configured' failed make[3]: ** [/home/techspace/lede-juci/source/build_dir/toolchain-x86_64_gcc-5.5.0_musl/linux-4.9.70/.configured] Error 2

该提问来源于开源项目：mkschreder/juci