[prev in list] [next in list] [prev in thread] [next in thread]
List: cmake
Subject: Re: [CMake] CMake 3.7.1 gui fails to launch
From: Andreas Pakulat <apaku () gmx ! de>
Date: 2017-01-06 19:10:11
Message-ID: CAExHGmSAyDrrexJBDqN9g44Rx1=zN1Ov2WQ=TD-TbYiS8h5XSA () mail ! gmail ! com
[Download RAW message or body]
Hi,
On Fri, Jan 6, 2017 at 6:41 PM, <daryl@daryllee.com> wrote:
> As it turns out, no, I can't use Qt5. In fact, I'd love to hear from anyone
> who actually has. I find this in Modules/FindQt.make:
That module is specifically only for applications wanting to support
Qt3 and Qt4 at the same time.
> ===========================
> if (Qt_FIND_VERSION)
> if (Qt_FIND_VERSION MATCHES "^([34])(\\.[0-9]+.*)?$")
> set(DESIRED_QT_VERSION ${CMAKE_MATCH_1})
> else ()
> message(FATAL_ERROR "FindQt was called with invalid version
> '${Qt_FIND_VERSION}'. Only Qt major versions 3 or 4 are supported. If you do
> not need to support both Qt3 and Qt4 in your source consider calling
> find_package(Qt3) or find_package(Qt4) instead of find_package(Qt)
> instead.")
> endif ()
> endif ()
> ===========================
>
> So I re-installed Qt4, rebuilt CMake (./bootstrap --qt-gui, make, sudo make
> install) and still got the same runtime failure.
Well, Qt5 isn't found through a find-module but rather through the
module-mode (or whatever it was called). Qt5 ships with cmake-specific
files that allow cmake to find it as long as its installed in a common
prefix (like /usr) or the installation directory is specified via
CMAKE_PREFIX_PATH. I suspect if you look at the CMakeLists.txt file
you'll see some logic to lookup Qt5 with something like
find_package(Qt5 MODULES QtCore QtGui QtWidgets) and a fallback for
finding with FindQt4 like find_package(Qt4 MODULES QtCore QtGui
QtWidgets). I don't think you'll find usage of the FindQt module in
the cmake sources as the code likely won't build with Qt3.
Andreas
--
Powered by www.kitware.com
Please keep messages on-topic and check the CMake FAQ at: \
http://www.cmake.org/Wiki/CMake_FAQ
Kitware offers various services to support the CMake community. For more information \
on each offering, please visit:
CMake Support: http://cmake.org/cmake/help/support.html
CMake Consulting: http://cmake.org/cmake/help/consulting.html
CMake Training Courses: http://cmake.org/cmake/help/training.html
Visit other Kitware open-source projects at \
http://www.kitware.com/opensource/opensource.html
Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/cmake
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic