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dd72b19f86
If no JAVA_HOME or ENV{JAVA_HOME} is set then try running this
tool to get the system default Java home.
Suggested-by: Larry Shaffer <larrys@dakotacarto.com>
42 lines
1.5 KiB
CMake
42 lines
1.5 KiB
CMake
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#=============================================================================
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# Copyright 2013-2014 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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# Do not include this module directly from code outside CMake!
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set(_JAVA_HOME "")
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if(JAVA_HOME AND IS_DIRECTORY "${JAVA_HOME}")
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set(_JAVA_HOME "${JAVA_HOME}")
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set(_JAVA_HOME_EXPLICIT 1)
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else()
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set(_ENV_JAVA_HOME "")
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if(DEFINED ENV{JAVA_HOME})
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file(TO_CMAKE_PATH "$ENV{JAVA_HOME}" _ENV_JAVA_HOME)
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endif()
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if(_ENV_JAVA_HOME AND IS_DIRECTORY "${_ENV_JAVA_HOME}")
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set(_JAVA_HOME "${_ENV_JAVA_HOME}")
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set(_JAVA_HOME_EXPLICIT 1)
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else()
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set(_CMD_JAVA_HOME "")
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if(APPLE AND EXISTS /usr/libexec/java_home)
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execute_process(COMMAND /usr/libexec/java_home
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OUTPUT_VARIABLE _CMD_JAVA_HOME OUTPUT_STRIP_TRAILING_WHITESPACE)
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endif()
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if(_CMD_JAVA_HOME AND IS_DIRECTORY "${_CMD_JAVA_HOME}")
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set(_JAVA_HOME "${_CMD_JAVA_HOME}")
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set(_JAVA_HOME_EXPLICIT 0)
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endif()
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unset(_CMD_JAVA_HOME)
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endif()
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unset(_ENV_JAVA_HOME)
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endif()
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