On 07/10/2014 05:49 PM, Koen Kooi wrote:
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Robert Yang schreef op 09-07-14 12:21:


On 07/09/2014 05:55 PM, Martin Jansa wrote:
On Tue, Jul 08, 2014 at 11:18:47PM -0700, Robert Yang wrote:
The fftw, fftwf and fftwl provide the same files (different
contents), we should only build one of them, otherwise there would be
warning

WARNING: The recipe fftw is trying to install files into a shared
area when those files already exist. Those files and their manifest
location are: sysroots/qemux86-64/usr/include/fftw3.f03 Matched in
manifest-qemux86-64-fftwl.populate_sysroot
manifest-qemux86-64-fftwf.populate_sysroot
sysroots/qemux86-64/usr/include/fftw3.h Matched in
manifest-qemux86-64-fftwl.populate_sysroot
manifest-qemux86-64-fftwf.populate_sysroot
sysroots/qemux86-64/usr/include/fftw3q.f03 Matched in
manifest-qemux86-64-fftwl.populate_sysroot
manifest-qemux86-64-fftwf.populate_sysroot
sysroots/qemux86-64/usr/include/fftw3.f Matched in
manifest-qemux86-64-fftwl.populate_sysroot
manifest-qemux86-64-fftwf.populate_sysroot
sysroots/qemux86-64/usr/include/fftw3l.f03 Matched in
manifest-qemux86-64-fftwl.populate_sysroot
manifest-qemux86-64-fftwf.populate_sysroot Please verify which
package should provide the above files.

and maybe errors (race issue):

The recipe imagemagick.do_compiler error: fourier.c:69:19: fatal
error: fftw3.h: No such file or directory #include <fftw3.h>

This is because imagemagick.do_configure depends on
fftw.populate_sysroot, but the files installed by
fftw.populate_sysroot, maybe removed by fftwl or fftwf when they
rebuild.

Only build fftw in the world will fix the problem.

But it doesn't fix the problem for people who are really building
fftwl and fftw. If there is someone with this use-case can he send
patch moving common parts to separate recipe used by all 3 or just
rename/move files to have unique name?

Or if they aren't needed at the same time, lets convert fftwl and
fftwf to PACKAGECONFIG options in fftw.

Yes, I think that PACKAGECONFIG is a good idea, will send patches
tomorrow if no objections.

The original idea of the different packages was that you could have all the
libraries in the binary feeds since they are needed. With packageconfig that
becomes virtually impossible.
I don't have a suggestion to improve the current situation, though :(

The race issue is painful since we don't know when it would happen,
I think that exclude two of them from world can reduce the race issue
for most of the users, for the user who build or install 3 of them
for the same image, we don't know how to fix it, but we already have
the warning for that.

// Robert


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