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49 lines
1.7 KiB
49 lines
1.7 KiB
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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FindPackageMessage
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------------------
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.. code-block:: cmake
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find_package_message(<name> "message for user" "find result details")
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This function 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. This is
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useful for telling the user where a package was found. The first
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argument specifies the name (XXX) of the package. The second argument
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specifies the message to display. The third argument lists details
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about the find result so that if they change the message will be
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displayed again. The macro also obeys the QUIET argument to the
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find_package command.
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Example:
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.. code-block:: cmake
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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()
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...
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endif()
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#]=======================================================================]
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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 ${pkg}_FIND_QUIETLY)
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string(REPLACE "\n" "" details "${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()
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endif()
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endfunction()
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