63 lines
2.2 KiB
CMake
63 lines
2.2 KiB
CMake
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# These are macros intended to be used only when crosscompiling in the
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# toolchain-file and only if the compiler is not able to link an
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# executable by default (usually because they need user-specific
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# linker files which describe the layout of the target memory).
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#
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# It offers the following macros:
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#
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# macro CMAKE_FORCE_SYSTEM(name version processor)
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# Set CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_VERSION and CMAKE_SYSTEM_PROCESSOR
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#
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# macro CMAKE_FORCE_C_COMPILER(compiler compiler_id sizeof_void_p)
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# Set CMAKE_C_COMPILER to the given compiler and set CMAKE_C_COMPILER_ID
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# to the given compiler_id. This Id is used by cmake to construct the filename
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# of the system-compiler.cmake file. For C also the size of a void-pointer
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# has to be predefined.
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#
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# macro CMAKE_FORCE_CXX_COMPILER(compiler compiler_id)
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# The same as CMAKE_FORCE_C_COMPILER, but for CXX. Here the size of
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# the void pointer is not requried.
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#
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# So a simple toolchain file could look like this:
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#
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# INCLUDE (CMakeForceCompiler)
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# CMAKE_FORCE_SYSTEM ("Generic" "0.0" "hc12")
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# CMAKE_FORCE_C_COMPILER (chc12 FreescaleCHC12 2)
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# CMAKE_FORCE_CXX_COMPILER (chc12 FreescaleCHC12)
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MACRO(CMAKE_FORCE_SYSTEM name version proc)
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SET(CMAKE_SYSTEM_NAME "${name}")
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SET(CMAKE_SYSTEM_VERSION "${version}")
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SET(CMAKE_SYSTEM_PROCESSOR "${proc}")
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ENDMACRO(CMAKE_FORCE_SYSTEM)
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MACRO(CMAKE_FORCE_C_COMPILER compiler id sizeof_void)
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SET(CMAKE_C_COMPILER "${compiler}")
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SET(CMAKE_C_COMPILER_ID_RUN TRUE)
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SET(CMAKE_C_COMPILER_ID ${id})
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SET(CMAKE_C_COMPILER_WORKS TRUE)
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# Set old compiler and platform id variables.
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IF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
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SET(CMAKE_COMPILER_IS_GNUCC 1)
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ENDIF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
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SET(CMAKE_SIZEOF_VOID_P ${sizeof_void} CACHE STRING "sizeof void")
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SET(HAVE_CMAKE_SIZEOF_VOID_P TRUE CACHE INTERNAL "have sizeof void")
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ENDMACRO(CMAKE_FORCE_C_COMPILER)
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MACRO(CMAKE_FORCE_CXX_COMPILER compiler id)
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SET(CMAKE_CXX_COMPILER "${compiler}")
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SET(CMAKE_CXX_COMPILER_ID_RUN TRUE)
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SET(CMAKE_CXX_COMPILER_ID ${id})
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SET(CMAKE_CXX_COMPILER_WORKS TRUE)
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IF("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
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SET(CMAKE_COMPILER_IS_GNUCXX 1)
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ENDIF("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
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ENDMACRO(CMAKE_FORCE_CXX_COMPILER)
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