cmake_modules/FindGHC.cmake
author Wuzzy <Wuzzy2@mail.ru>
Tue, 28 Aug 2018 05:46:33 +0200
changeset 13710 0da36902e5b6
parent 13291 31615a2e0db1
permissions -rw-r--r--
Space Invasion: Continue playing rounds in case the teams are tied at the end Rules in case of a tie: 1) Eliminate all teams not tied for the lead 2) Play another round with the remaining teams 3) Check for the winner again at the end of that round. If there's another tie, repeat the procedure

# - Try to find the Glasgow Haskell Compiler executable
# Once done this will define
#
#  GHC_VERSION        - GHC version
#  GHC_EXECUTABLE     - GHC executable
#  GHC_PKG_VERSION    - ghc-pkg version
#  GHC_PKG_EXECUTABLE - ghc-pkg executable
#
# Copyright (c) 2013, Vittorio Giovara <vittorio.giovara@gmail.com>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.


find_program(GHC_EXECUTABLE
    NAMES ghc
    PATHS /opt/local/bin /usr/local/bin /usr/bin
    )

find_program(GHC_PKG_EXECUTABLE
    NAMES ghc-pkg
    PATHS /opt/local/bin /usr/local/bin /usr/bin
    )

if (GHC_EXECUTABLE)
    # check ghc version
    execute_process(COMMAND ${GHC_EXECUTABLE} -V
                    OUTPUT_VARIABLE GHC_VERSION_OUTPUT
                    ERROR_VARIABLE GHC_VERSION_ERROR
                    RESULT_VARIABLE GHC_VERSION_RESULT
                    OUTPUT_STRIP_TRAILING_WHITESPACE
                    )

    if(${GHC_VERSION_RESULT} EQUAL 0)
        string(REGEX MATCH "([0-9]+)" GHC_VERSION ${GHC_VERSION_OUTPUT})
    else()
        message(SEND_ERROR "Command \"${GHC_EXECUTABLE} -V\" failed with output: ${GHC_VERSION_ERROR}")
    endif()
endif()

if (GHC_PKG_EXECUTABLE)
    # check ghc-pkg version
    execute_process(COMMAND ${GHC_PKG_EXECUTABLE} -V
                    OUTPUT_VARIABLE GHC_PKG_VERSION_OUTPUT
                    ERROR_VARIABLE GHC_PKG_VERSION_ERROR
                    RESULT_VARIABLE GHC_PKG_VERSION_RESULT
                    OUTPUT_STRIP_TRAILING_WHITESPACE
                    )

    if(${GHC_PKG_VERSION_RESULT} EQUAL 0)
        string(REGEX MATCH "([0-9]+)" GHC_PKG_VERSION ${GHC_PKG_VERSION_OUTPUT})
    else()
        message(SEND_ERROR "Command \"${GHC_PKG_EXECUTABLE} -V\" failed with output: ${GHC_PKG_VERSION_ERROR}")
    endif()
endif()

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(GHC DEFAULT_MSG GHC_EXECUTABLE GHC_VERSION)
mark_as_advanced(GHC_VERSION)