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This requires qt 3 or later. See http://www.trolltech.com
To support the widgets needed for this code you need Qwt, available
from http://sourceforge.net/projects/qwt
For Linux, this may be obtained from:
http://n4hy.org/Qwt/qwt-5.0.0.tar.bz2
On NetBSD or other pkgsrc systems, pkgsrc/x11/qwt exists and seems to
be a much older version linked against qt2. You need qt3!
QTDIR is an environment variable that must be set for
gr-qtgui to make.
On Ubuntu with a standard apt-get or synaptic install,
this is done by:
export QTDIR=/usr/share/qt3
on Fedora Core 6 for example it is automatically set to
/usr/lib/qt-3.3
by Qt install from the Fedora Core software setup.
If you are building from source from n4hy.org, the untar the bz2 ball,
cd into the qwt-5.0.0 directory and run
qmake
Now edit the file qwtconfig.pri
and make the INSTALLBASE = /usr/local
run
make
sudo make install
edit qwt.pc and change the prefix to be /usr/local and then install this file in /usr/local/lib/pkgconfig
qwt will be loaded into /usr/local/lib and the includes will be in /usr/local/include, qwt.pc will cause all of the
necessary flags to be including in the make files.
gr-qtgui will now make.
which must be run as root (as in sudo) so that files are
installed in the proper place for the gnuradio build
(such as qwt.pc).
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