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https://github.com/opencv/opencv.git
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5978ef1df5
Use find_program() to set CMAKE_C_COMPILER and CMAKE_CXX_COMPILER. Originally the variables was set to compiler name, without absolute path. CMake 3.0 tries to find them in CMAKE_FIND_ROOT_PATH (since CMAKE_FIND_ROOT_PATH_MODE_PROGRAM was set to ONLY) and fails.
89 lines
3.5 KiB
CMake
89 lines
3.5 KiB
CMake
set(CMAKE_SYSTEM_NAME Linux)
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set(CMAKE_SYSTEM_VERSION 1)
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set(CMAKE_SYSTEM_PROCESSOR arm)
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set(GCC_COMPILER_VERSION "4.6" CACHE STRING "GCC Compiler version")
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set(FLOAT_ABI_SUFFIX "")
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if (NOT SOFTFP)
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set(FLOAT_ABI_SUFFIX "hf")
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endif()
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find_program(CMAKE_C_COMPILER NAMES arm-linux-gnueabi${FLOAT_ABI_SUFFIX}-gcc-${GCC_COMPILER_VERSION})
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find_program(CMAKE_CXX_COMPILER NAMES arm-linux-gnueabi${FLOAT_ABI_SUFFIX}-g++-${GCC_COMPILER_VERSION})
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set(ARM_LINUX_SYSROOT /usr/arm-linux-gnueabi${FLOAT_ABI_SUFFIX} CACHE PATH "ARM cross compilation system root")
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set(CMAKE_CXX_FLAGS "" CACHE STRING "c++ flags")
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set(CMAKE_C_FLAGS "" CACHE STRING "c flags")
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set(CMAKE_SHARED_LINKER_FLAGS "" CACHE STRING "shared linker flags")
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set(CMAKE_MODULE_LINKER_FLAGS "" CACHE STRING "module linker flags")
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set(CMAKE_EXE_LINKER_FLAGS "-Wl,-z,nocopyreloc" CACHE STRING "executable linker flags")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mthumb -fdata-sections -Wa,--noexecstack -fsigned-char -Wno-psabi")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mthumb -fdata-sections -Wa,--noexecstack -fsigned-char -Wno-psabi")
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set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,--gc-sections -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${CMAKE_SHARED_LINKER_FLAGS}")
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set(CMAKE_MODULE_LINKER_FLAGS "-Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,--gc-sections -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${CMAKE_MODULE_LINKER_FLAGS}")
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set(CMAKE_EXE_LINKER_FLAGS "-Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,--gc-sections -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${CMAKE_EXE_LINKER_FLAGS}")
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if(USE_NEON)
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message(WARNING "You use obsolete variable USE_NEON to enable NEON instruction set. Use -DENABLE_NEON=ON instead." )
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set(ENABLE_NEON TRUE)
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elseif(USE_VFPV3)
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message(WARNING "You use obsolete variable USE_VFPV3 to enable VFPV3 instruction set. Use -DENABLE_VFPV3=ON instead." )
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set(ENABLE_VFPV3 TRUE)
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endif()
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set(CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH} ${ARM_LINUX_SYSROOT})
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if(EXISTS ${CUDA_TOOLKIT_ROOT_DIR})
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set(CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH} ${CUDA_TOOLKIT_ROOT_DIR})
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endif()
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set( CMAKE_SKIP_RPATH TRUE CACHE BOOL "If set, runtime paths are not added when using shared libraries." )
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
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# macro to find programs on the host OS
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macro( find_host_program )
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set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
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set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER )
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set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER )
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if( CMAKE_HOST_WIN32 )
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SET( WIN32 1 )
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SET( UNIX )
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elseif( CMAKE_HOST_APPLE )
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SET( APPLE 1 )
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SET( UNIX )
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endif()
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find_program( ${ARGN} )
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SET( WIN32 )
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SET( APPLE )
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SET( UNIX 1 )
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set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
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set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
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set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
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endmacro()
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# macro to find packages on the host OS
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macro( find_host_package )
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set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
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set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER )
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set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER )
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if( CMAKE_HOST_WIN32 )
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SET( WIN32 1 )
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SET( UNIX )
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elseif( CMAKE_HOST_APPLE )
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SET( APPLE 1 )
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SET( UNIX )
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endif()
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find_package( ${ARGN} )
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SET( WIN32 )
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SET( APPLE )
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SET( UNIX 1 )
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set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
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set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
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set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
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endmacro()
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