Error running make on CentOS 7.5

[dragonware-com]

make[6]: Leaving directory /home/wsun/work/github/ri5cy_gnu_toolchain/build/build-gcc-newlib/riscv32-unknown-elf/newlib' make[5]: Leaving directory/home/wsun/work/github/ri5cy_gnu_toolchain/build/build-gcc-newlib/riscv32-unknown-elf/newlib' make[4]: Leaving directory /home/wsun/work/github/ri5cy_gnu_toolchain/build/build-gcc-newlib/riscv32-unknown-elf/newlib' make[4]: Entering directory/home/wsun/work/github/ri5cy_gnu_toolchain/build/build-gcc-newlib/riscv32-unknown-elf/libgloss' make[5]: Entering directory /home/wsun/work/github/ri5cy_gnu_toolchain/build/build-gcc-newlib/riscv32-unknown-elf/libgloss/doc' make[5]: Nothing to be done forall'. make[5]: Leaving directory /home/wsun/work/github/ri5cy_gnu_toolchain/build/build-gcc-newlib/riscv32-unknown-elf/libgloss/doc' /home/wsun/riscv make[5]: Entering directory/home/wsun/riscv' make[5]: No targets specified and no makefile found. Stop. make[5]: Leaving directory `/home/wsun/riscv' make[4]: [stmp-bsp] Error 2 make[4]: Leaving directory /home/wsun/work/github/ri5cy_gnu_toolchain/build/build-gcc-newlib/riscv32-unknown-elf/libgloss' make[3]: *** [all-target-libgloss] Error 2 make[3]: Leaving directory/home/wsun/work/github/ri5cy_gnu_toolchain/build/build-gcc-newlib' make[2]: [all] Error 2 make[2]: Leaving directory `/home/wsun/work/github/ri5cy_gnu_toolchain/build/build-gcc-newlib' make[1]: [stamps/build-gcc-newlib] Error 2 make[1]: Leaving directory `/home/wsun/work/github/ri5cy_gnu_toolchain/build' make: *** [build] Error 2