set(CMAKE_SYSTEM_NAME Linux)
set(COMPILER_PREFIX aarch64-linux-gnu)
set(CMAKE_SYSTEM_PROCESSOR aarch64)
set(LIBRARY_DIR /opt/externs/libs)

set(CMAKE_C_COMPILER ${COMPILER_PREFIX}-gcc)
set(CMAKE_CXX_COMPILER ${COMPILER_PREFIX}-g++)
set(CMAKE_AR ${COMPILER_PREFIX}-ar)
set(CMAKE_LINKER ${COMPILER_PREFIX}-ld)
set(CMAKE_NM ${COMPILER_PREFIX}-nm)
set(CMAKE_OBJDUMP ${COMPILER_PREFIX}-objdump)
set(CMAKE_RANLIB ${COMPILER_PREFIX}-ranlib)
set(CMAKE_STAGING_PREFIX ${LIBRARY_DIR}/${COMPILER_PREFIX})
set(CMAKE_PREFIX_PATH ${CMAKE_STAGING_PREFIX})

include_directories(SYSTEM ${CMAKE_STAGING_PREFIX}/include)
include_directories(SYSTEM ${CMAKE_STAGING_PREFIX}/openssl/include)
set(CMAKE_FIND_ROOT_PATH ${CMAKE_STAGING_PREFIX})
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_SYSROOT ${CMAKE_STAGING_PREFIX})
link_directories(${CMAKE_STAGING_PREFIX})