I want to compile PhantomJS with gstreamer. I downloaded the source code and started the build process with
./build.sh --qmake-args WEBKIT_CONFIG+='use_gstreamer'
I get the following Error
Project ERROR: gstreamer-1.0 development package not found
I have an debian 8.0 system with installed libgstreamer1.0 and glib2.0 (installed with apt-get).
Can someone help me?
If you haven't installed them, you'll need the development packages as well which should be something like libgstreamer(X.X.X)-dev, where X.X.X is whichever version of gstreamer you have installed. The development package has the necessary header files required for compilation.
you may need to modify the build script to add "{GStreamerInstallDir}/1.0/{architecture}/lib/pkgconfig" to the CMAKE_MODULE_PATH configuration so cmake can find the package.
Not sure how to do this in your environment as I build on a windows OS where I just specify this using an environment variable from a wrapping batch script.
Related
I have a project which relies on /opt/qt59/bin/qt59-env.sh which sets up QT environment. Without it, qmake complains:
Project ERROR: Unknown module(s) in QT: quick quickwidgets
It's not on my system (Ubuntu 17.10). I have QT 5.9 installed through qt5-default. I have been looking around but can't find. I've tried packages qtscript5-dev but qt59-env.sh did not appear.
What should I install to get it? Or what's an alternative to set up the environment?
Ubuntu's default packages don't include this kind of script.
qt59-env.sh comes from qt59base, that is from this ppa.
The ppa is for Ubuntu xenial (16.04), but it could also work on 17.10.
Otherwise you can just download qt59-env.sh from here and modify the paths to your installed Qt version.
I am installing OMNET++ 5.1.1. However, during the installation, it is reported that:
configure: error: Cannot build Qt apps, probably due to missing or too old Qt packages. Make sure Qt development packages are installed and newer than Qt 5.4. You can disable Qtenv by setting the WITH_QTENV variable to "no" in configure.user.
Then I download and install the Qt from https://www.qt.io/download/. But it still report the same problem. How can I solve this problem ? Thank you.
I assume you're running some kind of GNU/Linux, because on Windows and macOS, the bundled Qt libraries should just work.
Try installing the Qt5 development packages using your distro's native package manager, then they should be detected.
If you can't, or they are too old, take a look in the configure.user file, and adjust the value of the QT_PATH variable according to the instructions there.
EDIT:
Since the OS was clarified: On Windows, you don't need to download Qt, or any other library separately. They are all bundled with the OMNeT++ distribution, and should work fine.
Just make sure you always use the included mingwenv shell to install and run OMNeT++. In it, the environment variables are set up as necessary.
If you are installing OMNET++ on windows make sure you extract the zip file to a folder other than "Program Files" and deactivate your antivirus during the installation process.
I've been using OpenCV and Marble libraries compiled and linked with Qt. Every time I do it I have problems running cmake to make these libraries. it seems paths in the qt cmake files to other qt cmake files are incorrect. I get errors like:
CMake Error at CMakeLists.txt:67 (find_package):
By not providing "FindQt5DBus.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "Qt5DBus", but
CMake did not find one.
Could not find a package configuration file provided by "Qt5DBus" with any
of the following names:
Qt5DBusConfig.cmake
qt5dbus-config.cmake
Add the installation prefix of "Qt5DBus" to CMAKE_PREFIX_PATH or set
"Qt5DBus_DIR" to a directory containing one of the above files. If
"Qt5DBus" provides a separate development package or SDK, be sure it has
been installed.
I can fix this in Ubuntu by running
sudo apt-get install qt5-default
This is fine in Ubuntu, but now I am trying to compile these libraries on mac and windows now. Anyone know a way to get a Qt with all of these paths already correct? tried the installer on windows and mac, and brew on mac. I don't really have time to play with fixing each one of these errors one by one
At least Qt 5.5 on Windows (using the Qt installer) should work out of the box. It has DBus included. Which Qt version are you using currently?
I just downloaded the latest release of ArrayFire (3.3.1), and am trying to build it. I'm stuck at cmake . though. I installed a bunch of missing libraries, reran it, and now I get:
-- Could NOT find LAPACK (missing: LAPACK_LIBRARIES)
CMake Warning at src/backend/opencl/CMakeLists.txt:38 (MESSAGE):
LAPACK not found. Functionality will be disabled
and
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
GLEWmxd_LIBRARY
linked by target "afcpu" in directory /home/joeuser/src/arrayfire-full-3.3.1/src/backend/cpu
linked by target "afcuda" in directory /home/joeuser/src/arrayfire-full-3.3.1/src/backend/cuda
linked by target "afopencl" in directory /home/joeuser/src/arrayfire-full-3.3.1/src/backend/opencl
I have installed lapack, and it's at /usr/lib/liblapack.so (that's an alternatives symlink, but it's not broken). Also installed lapacke.
ArrayFire requires the LAPACKE library (On Ubuntu, liblapacke-dev, and the graphics part requires GLEW-MX (on Ubuntu, libglewmx-dev).
All: Apologies in advance for what I hope is an easy question. It's been many years since I've worked in a Unix(-like) environment...
I'm trying to install RApache on a web server running the RHEL5 64-bit OS. I've successfully installed Apache and confirmed it works. I've also successfully installed R (R-2.13.0) with shared library. I've confirmed that libBlas.so and libR.so are installed; location: /R/R-2.13.0/lib
However, when I try to configure RApache ( sudo ./configure --with-apache2-apxs=/usr/local/apache2/bin/ --with-R=/R/R-2.13.0/) I get the following error:
R was not built as a shared
library Either build it with one,
or use another install of R
configure: error: aborting!
I've reinstalled R twice now and have confirmed in libtool that it says:
# Whether or not to build shared
libraries. build_libtool_libs=yes
Finally, I've searched high and low for some path or flag I need to set without success. Any help would be greatly appreciated.
Thanks,
Ron
You need to compile R with the appropriate flags. At the configure stage you need to include --enable-R-shlib so that R is built as a shared library.
You may need to further consult appendix B1 of http://cran.r-project.org/doc/manuals/R-admin.pdf which describes further issues.