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11659
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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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