set( CMAKE_SYSTEM_NAME Linux )
set( CMAKE_C_COMPILER  $ENV{CC} )
set( CMAKE_CXX_COMPILER  $ENV{CXX} )
SET( CMAKE_SYSROOT $ENV{SYSROOT} )
set( CMAKE_FIND_ROOT_PATH $ENV{SYSROOT} )
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )