opencv/cmake/OpenCVMinDepVersions.cmake

set(MIN_VER_CMAKE 2.8.7)
set(MIN_VER_CUDA 6.5)
set(MIN_VER_PYTHON2 2.6)
set(MIN_VER_PYTHON3 3.2)
set(MIN_VER_ZLIB 1.2.3)
set(MIN_VER_GTK 2.18.0)
Bumped minimal CMake version to 2.8.7. 11 years ago			`set(MIN_VER_CMAKE 2.8.7)`
increase minimal supported CUDA toolkit to 6.5 8 years ago			`set(MIN_VER_CUDA 6.5)`
Build both Python 2 and Python 3 bindings If both Python 2 and Python 3 are found, then build bindings for both of them during the build process. Currently, one version of Python is detected automatically, and building for the other requires changes the CMake config. The largest chunk of this change generalizes OpenCVDetectPython.cmake to find both a Python 2 and Python 3 version of Python. Secondly, the opencv_python module is split into two modules, opencv_python2 and opencv_python3. Both are built from the same source. but for different versions of Python. 11 years ago			`set(MIN_VER_PYTHON2 2.6)`
			`set(MIN_VER_PYTHON3 3.2)`
Set minimal zlib version to 1.2.3. Rationale: 1.2.3 was a security update, and we should avoid using versions with known security vulnerabilities. 11 years ago			`set(MIN_VER_ZLIB 1.2.3)`
mprove Gtk2/3 options in cmake Update to cmake files for to include minimum versions, and tidy up gtk operation. Files updated: CMakeLists.txt: WITH_GTK now uses Gtk3 by default. If not found then Gtk2 is used. WITH_GTK_2_X forces Gtk2.x use cmake/OpenCVFindLibsGUI.cmake Updated selection logic to implement methodology described above. Implemented warning if Gtk3 not found (and not overridden) Implemented error if Gtk does not meet minimum required version cmake/OpenCVMinDepVersions.cmake Added minimum Gtk version of 2.18.0 11 years ago			`set(MIN_VER_GTK 2.18.0)`