cmake_modules/FindGHC.cmake
author Wuzzy <Wuzzy2@mail.ru>
Mon, 17 Sep 2018 22:37:47 +0200
changeset 13785 4ed202f0428e
parent 13291 31615a2e0db1
permissions -rw-r--r--
Easier back jumps in Basic Movement Training (fixes bug #692) The explanation of Back Jumping (2/2) has been simplified and the "hard" part has been made easier by lowering the girders. The original idea was that I wanted to force players to learn how to jump higher by delaying the 2nd backspace keypress. But this turned out that this section was too unfair and we have lost at least one player due to rage-quitting, according to feedback.
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# - Try to find the Glasgow Haskell Compiler executable
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# Once done this will define
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#
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#  GHC_VERSION        - GHC version
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#  GHC_EXECUTABLE     - GHC executable
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#  GHC_PKG_VERSION    - ghc-pkg version
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#  GHC_PKG_EXECUTABLE - ghc-pkg executable
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#
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# Copyright (c) 2013, Vittorio Giovara <vittorio.giovara@gmail.com>
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#
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# Redistribution and use is allowed according to the terms of the BSD license.
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
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find_program(GHC_EXECUTABLE
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    NAMES ghc
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    PATHS /opt/local/bin /usr/local/bin /usr/bin
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    )
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find_program(GHC_PKG_EXECUTABLE
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    NAMES ghc-pkg
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    PATHS /opt/local/bin /usr/local/bin /usr/bin
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    )
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if (GHC_EXECUTABLE)
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    # check ghc version
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    execute_process(COMMAND ${GHC_EXECUTABLE} -V
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                    OUTPUT_VARIABLE GHC_VERSION_OUTPUT
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                    ERROR_VARIABLE GHC_VERSION_ERROR
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                    RESULT_VARIABLE GHC_VERSION_RESULT
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                    OUTPUT_STRIP_TRAILING_WHITESPACE
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                    )
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    if(${GHC_VERSION_RESULT} EQUAL 0)
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        string(REGEX MATCH "([0-9]+)" GHC_VERSION ${GHC_VERSION_OUTPUT})
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    else()
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        message(SEND_ERROR "Command \"${GHC_EXECUTABLE} -V\" failed with output: ${GHC_VERSION_ERROR}")
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    endif()
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endif()
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if (GHC_PKG_EXECUTABLE)
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    # check ghc-pkg version
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    execute_process(COMMAND ${GHC_PKG_EXECUTABLE} -V
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                    OUTPUT_VARIABLE GHC_PKG_VERSION_OUTPUT
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                    ERROR_VARIABLE GHC_PKG_VERSION_ERROR
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                    RESULT_VARIABLE GHC_PKG_VERSION_RESULT
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                    OUTPUT_STRIP_TRAILING_WHITESPACE
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                    )
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    if(${GHC_PKG_VERSION_RESULT} EQUAL 0)
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        string(REGEX MATCH "([0-9]+)" GHC_PKG_VERSION ${GHC_PKG_VERSION_OUTPUT})
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    else()
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        message(SEND_ERROR "Command \"${GHC_PKG_EXECUTABLE} -V\" failed with output: ${GHC_PKG_VERSION_ERROR}")
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    endif()
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(GHC DEFAULT_MSG GHC_EXECUTABLE GHC_VERSION)
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mark_as_advanced(GHC_VERSION)
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