CalcQt example not compiling in OS X with case-insensitive filesystem

[adapar]

In OS X with a case-insensitive filesystem the build process complains that there are no rules for examples/CalcQt/CMakeFiles/CalcQt.dir/depend. This happens because CalcQt.dir and calcqt.dir are seen by the filesystem as the same directory and one of the targets in examples/CalcQt/CMakeLists.txt is lots. The lines in question are:

    set(CALCQT_SOURCES src/CalcQt.cpp src/CalculatorWidget.cpp)
    add_executable(calcqt ${CALCQT_SOURCES} ${CALCQT_HEADERS_MOC})
    target_link_libraries(calcqt ${QT_LIBRARIES})
endif()

Changing target calcqt to CalcQtApp solves the issue.

[konserw]

I've created more complex PR that solves this:
Qt5 support for CalcQt example #98
Please close this PR if #98 is to be merged.

[adapar]

Ok, closed this in favor of #98