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+ − 1 # - Try to find the Clang/LLVM executable
+ − 2 # Once done this will define
+ − 3 #
+ − 4 # EMSCRIPTEN_FOUND - system has Clang
+ − 5 # EMSCRIPTEN_VERSION - Clang version
+ − 6 # EMSCRIPTEN_EXECUTABLE - Clang executable
+ − 7 #
+ − 8 # Copyright (c) 2013, Vittorio Giovara <vittorio.giovara@gmail.com>
+ − 9 #
+ − 10 # Redistribution and use is allowed according to the terms of the BSD license.
+ − 11 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+ − 12
+ − 13 find_program(EMSCRIPTEN_EXECUTABLE
+ − 14 NAMES emcc
+ − 15 PATHS /opt/local/bin /usr/local/bin /usr/bin)
+ − 16
+ − 17 if (EMSCRIPTEN_EXECUTABLE)
+ − 18 execute_process(COMMAND ${EMSCRIPTEN_EXECUTABLE} -v
+ − 19 OUTPUT_VARIABLE EMSCRIPTEN_VERSION_OUTPUT
+ − 20 ERROR_VARIABLE EMSCRIPTEN_VERSION_ERROR
+ − 21 RESULT_VARIABLE EMSCRIPTEN_VERSION_RESULT
+ − 22 OUTPUT_STRIP_TRAILING_WHITESPACE
+ − 23 )
+ − 24
+ − 25 if(${EMSCRIPTEN_VERSION_RESULT} EQUAL 0)
+ − 26 string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" EMSCRIPTEN_VERSION "${EMSCRIPTEN_VERSION_OUTPUT}")
+ − 27 string(REGEX REPLACE "([0-9]+\\.[0-9]+\\.[0-9]+)" "\\1" EMSCRIPTEN_VERSION "${EMSCRIPTEN_VERSION}")
+ − 28 else()
+ − 29 message(SEND_ERROR "Command \"${EMSCRIPTEN_EXECUTABLE} --version\" failed with output: ${EMSCRIPTEN_VERSION_ERROR}")
+ − 30 endif()
+ − 31 endif()
+ − 32
+ − 33 include(FindPackageHandleStandardArgs)
+ − 34 find_package_handle_standard_args(Emscripten DEFAULT_MSG EMSCRIPTEN_EXECUTABLE EMSCRIPTEN_VERSION)
+ − 35 mark_as_advanced(EMSCRIPTEN_VERSION)
+ − 36