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Implement CMAKE_CURRENT_LIST_DIR for older CMake

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The use of built-in CMAKE_CURRENT_LIST_DIR requires at least
CMake 2.8.3. This fix properly defines the variable to allow its
use in versions < 2.8.3 as well.

Fixes issue #4205.

Exclude >= 2.8.3 from reimplementation of CMAKE_CURRENT_LIST_DIR

This avoids violation of possible future CMake policy checks
regarding reserved/read-only variables.
This commit is contained in:
Alexander Nitsch 2015-02-20 00:55:26 +01:00 committed by Dikay900
parent b94c513cee
commit d6c95621e8
1 changed files with 7 additions and 0 deletions
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7
cmake/templates/OpenCVConfig.cmake.in
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@ -77,6 +77,13 @@ if("@USE_IPPICV@" STREQUAL "TRUE") # value is defined by package builder (use ST
endif()
if(NOT TARGET opencv_core)
# Extract directory name from full path of the file currently being processed.
# Note that CMake 2.8.3 introduced CMAKE_CURRENT_LIST_DIR. We reimplement it
# for older versions of CMake to support these as well.
if(CMAKE_VERSION VERSION_LESS "2.8.3")
get_filename_component(CMAKE_CURRENT_LIST_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
endif()
include(${CMAKE_CURRENT_LIST_DIR}/OpenCVModules${OpenCV_MODULES_SUFFIX}.cmake)
endif()