When I try to build SW Studio on Centos 7, I first get warning message below about QT5X11Extras during the cmake, and then eventually a build error:

 

rpm -ql qt5-qtx11extras-devel-5.6.1-2.el7.x86_64 shows that Qt5X11Extras is installed on the system.  How can I make cmake aware of its location?

/usr/include/qt5/QtX11Extras

/usr/include/qt5/QtX11Extras/QX11Info

/usr/include/qt5/QtX11Extras/QtX11Extras

/usr/include/qt5/QtX11Extras/QtX11ExtrasDepends

/usr/include/qt5/QtX11Extras/QtX11ExtrasVersion

/usr/include/qt5/QtX11Extras/qtx11extrasglobal.h

/usr/include/qt5/QtX11Extras/qtx11extrasversion.h

/usr/include/qt5/QtX11Extras/qx11info_x11.h

/usr/lib64/cmake/Qt5X11Extras

/usr/lib64/cmake/Qt5X11Extras/Qt5X11ExtrasConfig.cmake

/usr/lib64/cmake/Qt5X11Extras/Qt5X11ExtrasConfigVersion.cmake

/usr/lib64/libQt5X11Extras.prl

/usr/lib64/libQt5X11Extras.so

/usr/lib64/pkgconfig/Qt5X11Extras.pc

/usr/lib64/qt5/mkspecs/modules/qt_lib_x11extras.pri

/usr/lib64/qt5/mkspecs/modules/qt_lib_x11extras_private.pri

 

 

CMake Warning (dev) at Surfworks/CMakeLists.txt:12 (ADD_LIBRARY):

  Policy CMP0028 is not set: Double colon in target name means ALIAS or

  IMPORTED target.  Run "cmake --help-policy CMP0028" for policy details.

  Use the cmake_policy command to set the policy and suppress this warning.

 

  Target "Surfworks" links to target "Qt5::X11Extras" but the target was not

  found.  Perhaps a find_package() call is missing for an IMPORTED target, or

  an ALIAS target is missing?

This warning is for project developers.  Use -Wno-dev to suppress it.

 

CMake Warning (dev) at Application/CMakeLists.txt:84 (ADD_EXECUTABLE):

  Policy CMP0028 is not set: Double colon in target name means ALIAS or

  IMPORTED target.  Run "cmake --help-policy CMP0028" for policy details.

  Use the cmake_policy command to set the policy and suppress this warning.

 

  Target "ShapeWorksStudio" links to target "Qt5::X11Extras" but the target

  was not found.  Perhaps a find_package() call is missing for an IMPORTED

  target, or an ALIAS target is missing?

This warning is for project developers.  Use -Wno-dev to suppress it.

 

CMake Warning (dev) at CLT/CMakeLists.txt:12 (ADD_EXECUTABLE):

  Policy CMP0028 is not set: Double colon in target name means ALIAS or

  IMPORTED target.  Run "cmake --help-policy CMP0028" for policy details.

  Use the cmake_policy command to set the policy and suppress this warning.

 

  Target "ShapeworksCLT" links to target "Qt5::X11Extras" but the target was

  not found.  Perhaps a find_package() call is missing for an IMPORTED

  target, or an ALIAS target is missing?

This warning is for project developers.  Use -Wno-dev to suppress it.

 

-- Generating done

-- Build files have been written to: /root/Downloads/SW_Studio/ShapeWorksStudio/build

 

 

/usr/bin/ld: cannot find -lQt5::X11Extras

collect2: error: ld returned 1 exit status

make[2]: *** [Application/ShapeWorksStudio] Error 1

make[1]: *** [Application/CMakeFiles/ShapeWorksStudio.dir/all] Error 2

make: *** [all] Error 2