Re: [Discuss-gnuradio] patch to make FindQwt.cmake work on OpenSuse 12.1

[Patrik Tast]

Hi,

> File in question for reference:
> http://gnuradio.org/cgit/gnuradio.git/tree/cmake/Modules/FindQwt.cmake

Could the *find that dependency* be automatized using locate and grep 
instead of hard-coding where to look in?
I'm using latest qwt for other delvel projects also. A quick lookup (using 
Fedora) could look like this:

$ locate libqwt.so
/usr/local/qwt-6.0.2-svn/lib/libqwt.so
/usr/local/qwt-6.0.2-svn/lib/libqwt.so.6
/usr/local/qwt-6.0.2-svn/lib/libqwt.so.6.0
/usr/local/qwt-6.0.2-svn/lib/libqwt.so.6.0.2

$ locate qwt_plot.h
/usr/local/qwt-6.0.2-svn/include/qwt_plot.h


Patrik

----- Original Message ----- 
From: "Josh Blum" <address@hidden>
To: <address@hidden>
Sent: Sunday, May 13, 2012 20:56
Subject: Re: [Discuss-gnuradio] patch to make FindQwt.cmake work on OpenSuse 
12.1


> On 05/13/2012 08:49 AM, Tom Rondeau wrote:
> > On Sat, May 12, 2012 at 5:07 PM, Kire Pudsje <address@hidden> 
> > wrote:
> > > I tried to install gnuradio from git on my machine. The only problem I
> > > encountered is that the qwt library could not be found (ie. gr-qtgui
> > > was disabled). Attached is a patch, to solve this problem. It includes
> > > the /usr/lib64 directory and qwt5 library.
> >
> > Hi Kire,
> >
> > I have a bit of heartburn over constantly adding new directories to
> > look for QWT libraries. It seems like we would just be introducing a
> > new directory for every platform we want to work on.
> >
> > The alternative way is to handle it by passing the directories to
> > cmake via the command line:
> >
> > cmake -DQWT_INCLUDE_DIRS=/usr/include/qwt5
> >
> > Since the library is in /usr/lib64, you don't need to tell cmake this,
> > since it's a standard library path already.
>
> Theres not PC file for qwt it seems. So we dont have the advantage of
> knowing the correct library and include paths. So a list is somewhat
> necessary. There there are qwt5 and qwt4 specific directories, but maybe
> on some systems.
>
> /usr/lib64 may be the install library path for all x64 redhat systems,
> but its missing from the list. Has anyone configured gnuradio with qwt
> on fedora x64 for example (without specifying manually).
>
> I would recommend replacing the lists there with the paths actually used
> by fedora* and ubuntu* systems. The other deb and rpm distros will
> probably fall into one of those two categories.
>
> My ubuntu x64 11.10 is using /usr/include/qwt-qt4/
> /usr/lib/libqwt-qt4.so, but thats already in there.
>
> File in question for reference:
> http://gnuradio.org/cgit/gnuradio.git/tree/cmake/Modules/FindQwt.cmake
>
> Dont think /sw is a common install prefix.
>
> -Josh
>
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