cmake_modules/FindEmscripten.cmake
author Wuzzy <Wuzzy2@mail.ru>
Fri, 11 Oct 2019 13:35:13 +0200
changeset 15465 421da44ff218
parent 11659 870f22de388b
permissions -rw-r--r--
Update cabal command syntax in .travis.yml
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# - Try to find the Clang/LLVM executable
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# Once done this will define
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#
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#  EMSCRIPTEN_FOUND       - system has Clang
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#  EMSCRIPTEN_VERSION     - Clang version
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#  EMSCRIPTEN_EXECUTABLE  - Clang 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(EMSCRIPTEN_EXECUTABLE
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        NAMES emcc
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        PATHS /opt/local/bin /usr/local/bin /usr/bin)
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if (EMSCRIPTEN_EXECUTABLE)
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    execute_process(COMMAND ${EMSCRIPTEN_EXECUTABLE} -v
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                    OUTPUT_VARIABLE EMSCRIPTEN_VERSION_OUTPUT
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                    ERROR_VARIABLE EMSCRIPTEN_VERSION_ERROR
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                    RESULT_VARIABLE EMSCRIPTEN_VERSION_RESULT
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                    OUTPUT_STRIP_TRAILING_WHITESPACE
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                    )
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    if(${EMSCRIPTEN_VERSION_RESULT} EQUAL 0)
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        string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" EMSCRIPTEN_VERSION "${EMSCRIPTEN_VERSION_OUTPUT}")
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        string(REGEX REPLACE "([0-9]+\\.[0-9]+\\.[0-9]+)" "\\1" EMSCRIPTEN_VERSION "${EMSCRIPTEN_VERSION}")
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    else()
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        message(SEND_ERROR "Command \"${EMSCRIPTEN_EXECUTABLE} --version\" failed with output: ${EMSCRIPTEN_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(Emscripten DEFAULT_MSG EMSCRIPTEN_EXECUTABLE EMSCRIPTEN_VERSION)
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mark_as_advanced(EMSCRIPTEN_VERSION)
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