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set(CROSS_ROOTFS $ENV{ROOTFS_DIR})
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_VERSION 1)
set(CMAKE_SYSTEM_PROCESSOR armv7l)
## Specify the toolchain
set(TOOLCHAIN "arm-linux-gnueabihf")
set(TOOLCHAIN_PREFIX ${TOOLCHAIN}-)
#set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}gcc)
#set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}g++)
#set(CMAKE_ASM_COMPILER ${TOOLCHAIN_PREFIX}as)
#set(CMAKE_AR ${TOOLCHAIN_PREFIX}ar)
#set(CMAKE_OBJCOPY ${TOOLCHAIN_PREFIX}objcopy)
#set(CMAKE_OBJDUMP ${TOOLCHAIN_PREFIX}objdump)
add_compile_options(-target armv7-linux-gnueabihf)
add_compile_options(-mthumb)
add_compile_options(-mfpu=vfpv3)
add_compile_options(--sysroot=${CROSS_ROOTFS})
set(CROSS_LINK_FLAGS "${CROSS_LINK_FLAGS} -target ${TOOLCHAIN}")
set(CROSS_LINK_FLAGS "${CROSS_LINK_FLAGS} -B ${CROSS_ROOTFS}/usr/lib/gcc/${TOOLCHAIN}")
set(CROSS_LINK_FLAGS "${CROSS_LINK_FLAGS} -L${CROSS_ROOTFS}/lib/${TOOLCHAIN}")
set(CROSS_LINK_FLAGS "${CROSS_LINK_FLAGS} --sysroot=${CROSS_ROOTFS}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${CROSS_LINK_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${CROSS_LINK_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} ${CROSS_LINK_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_FIND_ROOT_PATH "${CROSS_ROOTFS}")
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_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
set(WITH_LLDB_LIBS "${CROSS_ROOTFS}/usr/lib/${TOOLCHAIN}" CACHE STRING "")
set(WITH_LLDB_INCLUDES "${CROSS_ROOTFS}/usr/lib/llvm-3.6/include" CACHE STRING "")
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