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# FIND_PACKAGE_MESSAGE(<name> "message for user" "find result details")
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#
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# This macro is intended to be used in FindXXX.cmake modules files.
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# It will print a message once for each unique find result.
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# This is useful for telling the user where a package was found.
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# The first argument specifies the name (XXX) of the package.
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# The second argument specifies the message to display.
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# The third argument lists details about the find result so that
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# if they change the message will be displayed again.
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# The macro also obeys the QUIET argument to the find_package command.
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#
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# Example:
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#
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# IF(X11_FOUND)
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# FIND_PACKAGE_MESSAGE(X11 "Found X11: ${X11_X11_LIB}"
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# "[${X11_X11_LIB}][${X11_INCLUDE_DIR}]")
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# ELSE(X11_FOUND)
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# ...
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# ENDIF(X11_FOUND)
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#=============================================================================
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# Copyright 2008-2009 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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FUNCTION(FIND_PACKAGE_MESSAGE pkg msg details)
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# Avoid printing a message repeatedly for the same find result.
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IF(NOT ${pkg}_FIND_QUIETLY)
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STRING(REGEX REPLACE "[\n]" "" details "${details}")
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SET(DETAILS_VAR FIND_PACKAGE_MESSAGE_DETAILS_${pkg})
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IF(NOT "${details}" STREQUAL "${${DETAILS_VAR}}")
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# The message has not yet been printed.
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MESSAGE(STATUS "${msg}")
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# Save the find details in the cache to avoid printing the same
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# message again.
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SET("${DETAILS_VAR}" "${details}"
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CACHE INTERNAL "Details about finding ${pkg}")
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ENDIF(NOT "${details}" STREQUAL "${${DETAILS_VAR}}")
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ENDIF(NOT ${pkg}_FIND_QUIETLY)
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ENDFUNCTION(FIND_PACKAGE_MESSAGE)
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