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Diffstat (limited to 'Help/policy/CMP0020.rst')
| -rw-r--r-- | Help/policy/CMP0020.rst | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Help/policy/CMP0020.rst b/Help/policy/CMP0020.rst new file mode 100644 index 0000000..ad664b0 --- /dev/null +++ b/Help/policy/CMP0020.rst @@ -0,0 +1,25 @@ +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. |