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

[Tom Rondeau]

On Tue, May 15, 2012 at 2:55 AM, Kire Pudsje <address@hidden> wrote:
> 2012/5/14 Patrik Tast <address@hidden>:
>> 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
>>
> The FILE GLOB could do the same trick as you suggest:
> "FILE(GLOB qwt_files ${qwt_dir}/include/qwt*/qwt_plot.h)"
>
> I tried to write a patch which uses exactly that.
> It tries to locate the header files in:
> /usr/local/qwt*/include
> /usr/local/include/qwt*
> /usr/qwt*/include
> /usr/include/qwt*
> /opt/local/qwt*/include
> /opt/local/include/qwt*
> /sw/local/qwt*/include
> /sw/local/include/qwt*
> Furthermore, the libraries are searched in the same order. So if I
> have the packaged version for qwt in /usr/include/qwt5 and I have a
> manually compiled qwt in /usr/local/qwt-6.0.2-svn, it prefers the
> manually compiled version, and makes sure that it will then search the
> libraries in exactly the same order. On 64bit machines, the lib64 will
> be preferred over lib.
> This patch is pure cmake language, so it should not break on windows.
> Furthermore, no maintenance should be needed with new versions of qwt.
> Kire.

Kire,

This sounds good. I'll have a look at it next week when I get back
home and can process it better. Using cmake's GLOB is a lot more
attractive, too, since it's (I assume) cross-platform.

Thanks!
Tom