Error in CMake path

Question

I'm trying to build the Visual Studio project for a kinect demo thing, rgbddemo. According to the instructions on the page, I need to set the PATH variable to include QMAKE from QT. I did that, but I keep getting this error:

CMake Error at CMakeLists.txt:1 (QT4_WRAP_CPP): Unknown CMake command "QT4_WRAP_CPP".

From what I could gather from google, it's a problem with CMake knowing where something from QT is. The page I linked above also mentions that you can set the path for QMAKE within CMake, but I don't know how to do that. Does anyone have any suggestions? Thanks.

Answer 1

I think this lines in your CMakeLists.txt file can help you.

find_package(Qt4 Required)
include(${QT_USE_FILE}) #contains path to Qt header

#...

qt4_wrap_cpp(MOC_SOURCES ${MY_HEADERS}) #invoking moc 
add_library(MY_LIB ${SOURCES} ${MOC_SOURCES}) #building lib
target_link_libraries(MY_LIB ${QT_LIBRARIES})

qt4_add_resources(MY_QT_RSC ${RESOURCES}) #if you want to compile from resource files
add_library(MY_LIB_2 ${MY_QT_RSC} {SOURCES})

Answer 2

You could try inserting the line

FIND_PACKAGE(Qt4)

into the top-level CMakeLists.txt file after the line

INCLUDE("${nestk_BINARY_DIR}/UseNestk.cmake")

That should cause it to try to find qmake for you. I'm not sure why they don't have that though, but then I'm not that familiar with cmake.