Details
Trivial Description
When compiling with cmake 4.4 I get the following warning:
[cmake] CMake Warning (policy) at cmake/plugin.cmake:342 (IF):
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[cmake] Policy CMP0218 is not set: The CMAKE_WARN_DEPRECATED and
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[cmake] CMAKE_ERROR_DEPRECATED variables are ignored. Run "cmake --help-policy
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[cmake] CMP0218" for policy details. Use the cmake_policy command to set the
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[cmake] policy and suppress this warning.
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[cmake] Call Stack (most recent call first):
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[cmake] CMakeLists.txt:490 (CONFIGURE_PLUGINS)
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[cmake] This warning is for project developers. Use -Wno-author or -Wno-policy to
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[cmake] suppress it.
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[cmake]
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[cmake] CMake Warning (policy) at cmake/plugin.cmake:342 (IF):
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[cmake] Policy CMP0218 is not set: The CMAKE_WARN_DEPRECATED and
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[cmake] CMAKE_ERROR_DEPRECATED variables are ignored. Run "cmake --help-policy
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[cmake] CMP0218" for policy details. Use the cmake_policy command to set the
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[cmake] policy and suppress this warning.
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[cmake] Call Stack (most recent call first):
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[cmake] CMakeLists.txt:490 (CONFIGURE_PLUGINS)
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[cmake] This warning is for project developers. Use -Wno-author or -Wno-policy to
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[cmake] suppress it.
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[cmake]
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[cmake] -- Configuring done (1.8s)
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[cmake] -- Generating done (0.9s)
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[cmake] -- Build files have been written to: /Users/gkodinov/dev/server-10.11/bld
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This is about the following fragment in cmake/plugin.cmake:
GET_CMAKE_PROPERTY(ALL_VARS VARIABLES)
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FOREACH (V ${ALL_VARS})
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IF (V MATCHES "^PLUGIN_" AND ${V} MATCHES "YES")
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STRING(SUBSTRING ${V} 7 -1 plugin)
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STRING(TOLOWER ${plugin} target)
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IF (NOT TARGET ${target})
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MESSAGE(FATAL_ERROR "Plugin ${plugin} cannot be built")
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ENDIF()
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ENDIF()
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ENDFOREACH()
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It looks like cmake always evaluates all conditions in a IF() statement even if the LHS of an AND is FALSE. So you get a warning as a result because of the CMAKE_WARN_DEPRECATED variable.
The fix is to break the IF():
GET_CMAKE_PROPERTY(ALL_VARS VARIABLES)
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FOREACH (V ${ALL_VARS})
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IF (V MATCHES "^PLUGIN_")
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IF (${V} MATCHES "YES")
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STRING(SUBSTRING ${V} 7 -1 plugin)
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STRING(TOLOWER ${plugin} target)
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IF (NOT TARGET ${target})
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MESSAGE(FATAL_ERROR "Plugin ${plugin} cannot be built")
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ENDIF()
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ENDIF()
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ENDIF()
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ENDFOREACH()
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