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109 lines
3.8 KiB
109 lines
3.8 KiB
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#.rst:
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# CMakeForceCompiler
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# ------------------
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#
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# Deprecated. Do not use.
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#
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# The macros provided by this module were once intended for use by
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# cross-compiling toolchain files when CMake was not able to automatically
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# detect the compiler identification. Since the introduction of this module,
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# CMake's compiler identification capabilities have improved and can now be
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# taught to recognize any compiler. Furthermore, the suite of information
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# CMake detects from a compiler is now too extensive to be provided by
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# toolchain files using these macros.
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#
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# One common use case for this module was to skip CMake's checks for a
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# working compiler when using a cross-compiler that cannot link binaries
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# without special flags or custom linker scripts. This case is now supported
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# by setting the :variable:`CMAKE_TRY_COMPILE_TARGET_TYPE` variable in the
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# toolchain file instead.
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#
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# -------------------------------------------------------------------------
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#
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# Macro CMAKE_FORCE_C_COMPILER has the following signature:
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#
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# ::
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#
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# CMAKE_FORCE_C_COMPILER(<compiler> <compiler-id>)
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#
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# It sets CMAKE_C_COMPILER to the given compiler and the cmake internal
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# variable CMAKE_C_COMPILER_ID to the given compiler-id. It also
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# bypasses the check for working compiler and basic compiler information
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# tests.
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#
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# Macro CMAKE_FORCE_CXX_COMPILER has the following signature:
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#
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# ::
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#
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# CMAKE_FORCE_CXX_COMPILER(<compiler> <compiler-id>)
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#
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# It sets CMAKE_CXX_COMPILER to the given compiler and the cmake
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# internal variable CMAKE_CXX_COMPILER_ID to the given compiler-id. It
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# also bypasses the check for working compiler and basic compiler
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# information tests.
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#
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# Macro CMAKE_FORCE_Fortran_COMPILER has the following signature:
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#
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# ::
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#
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# CMAKE_FORCE_Fortran_COMPILER(<compiler> <compiler-id>)
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#
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# It sets CMAKE_Fortran_COMPILER to the given compiler and the cmake
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# internal variable CMAKE_Fortran_COMPILER_ID to the given compiler-id.
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# It also bypasses the check for working compiler and basic compiler
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# information tests.
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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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# ::
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#
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# include (CMakeForceCompiler)
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# set(CMAKE_SYSTEM_NAME Generic)
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# CMAKE_FORCE_C_COMPILER (chc12 MetrowerksHicross)
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# CMAKE_FORCE_CXX_COMPILER (chc12 MetrowerksHicross)
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macro(CMAKE_FORCE_C_COMPILER compiler id)
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message(DEPRECATION "The CMAKE_FORCE_C_COMPILER macro is deprecated. "
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"Instead just set CMAKE_C_COMPILER and allow CMake to identify the compiler.")
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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 ${id})
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set(CMAKE_C_COMPILER_FORCED TRUE)
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# Set old compiler id variables.
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if(CMAKE_C_COMPILER_ID MATCHES "GNU")
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set(CMAKE_COMPILER_IS_GNUCC 1)
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endif()
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endmacro()
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macro(CMAKE_FORCE_CXX_COMPILER compiler id)
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message(DEPRECATION "The CMAKE_FORCE_CXX_COMPILER macro is deprecated. "
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"Instead just set CMAKE_CXX_COMPILER and allow CMake to identify the compiler.")
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set(CMAKE_CXX_COMPILER "${compiler}")
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set(CMAKE_CXX_COMPILER_ID_RUN TRUE)
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set(CMAKE_CXX_COMPILER_ID ${id})
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set(CMAKE_CXX_COMPILER_FORCED TRUE)
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# Set old compiler id variables.
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if("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
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set(CMAKE_COMPILER_IS_GNUCXX 1)
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endif()
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endmacro()
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macro(CMAKE_FORCE_Fortran_COMPILER compiler id)
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message(DEPRECATION "The CMAKE_FORCE_Fortran_COMPILER macro is deprecated. "
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"Instead just set CMAKE_Fortran_COMPILER and allow CMake to identify the compiler.")
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set(CMAKE_Fortran_COMPILER "${compiler}")
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set(CMAKE_Fortran_COMPILER_ID_RUN TRUE)
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set(CMAKE_Fortran_COMPILER_ID ${id})
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set(CMAKE_Fortran_COMPILER_FORCED TRUE)
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# Set old compiler id variables.
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if(CMAKE_Fortran_COMPILER_ID MATCHES "GNU")
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set(CMAKE_COMPILER_IS_GNUG77 1)
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endif()
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endmacro()
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