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86578eccf2
Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
109 lines
3.8 KiB
CMake
109 lines
3.8 KiB
CMake
# 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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