fedora 23 libcl not found

[arpu]

fedora 23

./configure --enable-libcl --enable-opencv --enable-debug

 libxcam configuration summary
 version                    : 0.8.0
 enable debug               : yes
 enable profiling           : no
 build GStreamer plugin     : no
 build aiq analyzer         : no
 use local aiq              : no
 use local atomisp          : yes
 have opencl lib            : no
 have opencv lib            : yes
 enable 3a lib              : no
 enable smart analysis lib  : no

any help what packages are needed?

[uartie]

I believe the package is beignet. Try dnf provides */libcl.so.

[arpu]

ok yes you are right but

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH
echo $PKG_CONFIG_PATH
/usr/local/lib/pkgconfig:/usr/lib/pkgconfig
./configure --enable-libcl --enable-opencv
checking for LIBCL... no
checking for LIBCL... no

locate libcl.so
/usr/lib64/beignet/libcl.so
dnf list installed | grep beignet
beignet.x86_64 1.2.0-1.fc24 @updates
beignet-devel.x86_64 1.2.0-1.fc24 @updates

any idea how i can solve this?

[uartie]

Yup, it looks like neither beignet nor beignet-devel provides a libcl.pc file. I'm not sure where to get it. @windyuan can you help with this?

[arpu]

as workaround
set HAVE_LIBCL=1 in configure.ac after the libcl check
and add -lOpenCL to the tests/Makefile

[windyuan]

@uartie, sorry for late reply, just came back from Chinese New Year vacation.
yes, you are right, it's the beignet dependency. currently libxcam code depends on <CL/cl_intel.h> which can be get from beignet-devel. libcl.pc had ever been used in some other projects. Your code should go to here

if test "$enable_libcl" = "yes" && test "$HAVE_LIBCL" -eq 0; then
    PKG_CHECK_MODULES(LIBCL, [OpenCL], [HAVE_LIBCL=1], [HAVE_LIBCL=0])
fi

which means you have to install OpenCL.pc first.

@arpu , thanks for your workaround, force to set HAVE_LIBCL=1 in configure.ac is not necessary if OpenCL.pc was installed. could you submit your patch with OpenCL for tests/Makefile?

Thanks,
Wind Yuan

[arpu]

dnf provides OpenCL.pc
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about the patch i will look at this!

[windyuan]

@arpu, thanks.
sorry, I don't have a Fedora OS. In Ubuntu, OpenCL.pc is from ocl-icd-opencl-dev. you can check ocl-icl related package.

[arpu]

works now for me i think the problem was not installed ocl dev package

[windyuan]

thank you.