ppc cross compile

[vb216]

Slowly getting there.. ffmpeg, cuda, and leptonica outstanding.

ffmpeg - not picking up the earlier built libs, i've tried a few different angles but not cracked it yet
cuda - its using x86_64 cuda in the docker image, but when it comes to linking it cant find the ppc64 .so files. might be a case of just bundling them and manually copying in to the docker image
leptonica - a little similar to ffmpeg, not finding a zlib its happy with

[vb216]

Hm, with cuda, its now failing due to not finding lcuda below. But, I can only see a libcuda.so in the stubs, has something changed in v9? Or am I missing something else.

Compiling /home/travis/build/javacpp-presets/cuda/target/classes/org/bytedeco/javacpp/linux-ppc64le/libjnicublas.so
[INFO] powerpc64le-linux-gnu-g++ -I/usr/local/cuda-9.0/include/ -I/usr/lib/jvm/java-8-openjdk-amd64/include -I/usr/lib/jvm/java-8-openjdk-amd64/include/linux /home/travis/build/javacpp-presets/cuda/target/classes/org/bytedeco/javacpp/jnicublas.cpp -mcpu=power8 -m64 -O3 -s -Wl,-rpath,$ORIGIN/ -Wl,-z,noexecstack -Wl,-Bsymbolic -Wall -fPIC -shared -o libjnicublas.so -L/usr/local/cuda-9.0/lib64/ -Wl,-rpath,/usr/local/cuda-9.0/lib64/ -lcublas -lcuda -lcudart
/usr/lib/gcc-cross/powerpc64le-linux-gnu/5/../../../../powerpc64le-linux-gnu/bin/ld: cannot find -lcuda

[saudet]

It usually comes with the driver. It should be somewhere it the .deb, but the stub might work as well.

[vb216]

Hopefully this is it finished.

[saudet]

There's only been 18 commits between 3.05 and 3.05.01: tesseract-ocr/tesseract@3.05.01...3.05
We can probably just make a patch to revert the offending one...

[saudet]

Could we put the content of ci/hdf5 into a patch and in the main hdf5 subdirectory itself?

[saudet]

How did you create that cudappc64.tar? Maybe we can just put the few commands for this here...

[vb216]

Yeah I was just trading off time vs getting something out there. They're all possible, though the last one its quite a pain - its deconstructing the .deb file and repackaging it up, I guess could be put in a neat one liner but I didn't see anything immediate. Won't be able to do anything for a few weeks

[saudet]

This is working remarkably well, great job! While fixing a couple of things, I also discovered an unrelated issue with Leptonica not linking to the image libraries, so that's good too.

Now that this is done, as far as CI goes, I think the priority would be to update the http://bytedeco.org/builds/ page with recent information about Travis CI and AppVeyor. Feel free to start sending pull requests there when you get some time in a few weeks, but no rush, take your time. Thanks!