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authorKitware Robot <kwrobot@kitware.com>2013-10-15 15:17:36 (GMT)
committerBrad King <brad.king@kitware.com>2013-10-15 18:12:03 (GMT)
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+CMP0020
+-------
+
+Automatically link Qt executables to qtmain target on Windows.
+
+CMake 2.8.10 and lower required users of Qt to always specify a link
+dependency to the qtmain.lib static library manually on Windows.
+CMake 2.8.11 gained the ability to evaluate generator expressions
+while determining the link dependencies from IMPORTED targets. This
+allows CMake itself to automatically link executables which link to Qt
+to the qtmain.lib library when using IMPORTED Qt targets. For
+applications already linking to qtmain.lib, this should have little
+impact. For applications which supply their own alternative WinMain
+implementation and for applications which use the QAxServer library,
+this automatic linking will need to be disabled as per the
+documentation.
+
+The OLD behavior for this policy is not to link executables to
+qtmain.lib automatically when they link to the QtCore IMPORTEDtarget.
+The NEW behavior for this policy is to link executables to qtmain.lib
+automatically when they link to QtCore IMPORTED target.
+
+This policy was introduced in CMake version 2.8.11. CMake version
+|release| warns when the policy is not set and uses OLD behavior. Use
+the cmake_policy command to set it to OLD or NEW explicitly.