fjzhangzzz/toolchain repository overview

docker run --rm -it fjzhangzzz/toolchain:latest \
    make CC=powerpc64-linux-gnu-gcc CXX=powerpc64-linux-gnu-g++ LD=powerpc64-linux-gnu-ld \
         -f /path/to/your/Makefile

$ vi powerpc64-linux-gnu.toolchain.cmake
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR powerpc64)

set(TOOLCHAIN /opt/powerpc64-linux-gnu)
set(CMAKE_SYSROOT${TOOLCHAIN}/sysroot)
set(CMAKE_C_COMPILER ${TOOLCHAIN}/usr/bin/powerpc64-linux-gnu-gcc)
set(CMAKE_CXX_COMPILER ${TOOLCHAIN}/usr/bin/powerpc64-linux-gnu-g++)

set(CMAKE_FIND_ROOT_PATH ${TOOLCHAIN}/sysroot)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM BOTH)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)

$ mkdir build && cd build
$ cmake -DCMAKE_TOOLCHAIN_FILE=powerpc64-linux-gnu.toolchain.cmake ..
$ make