Installing on arm processor

[EvilGarfield]

Hi!

Thank you for oyur wrappe that proved very useful. I use it on Linux without problem. I now want to use the camera on a RPi3 but when installing the wrapper, I get the following error:

`running install

running bdist_egg

running egg_info

writing pyflycapture2.egg-info/PKG-INFO writing requirements to pyflycapture2.egg-info/requires.txt writing dependency_links to pyflycapture2.egg-info/dependency_links.txt writing top-level names to pyflycapture2.egg-info/top_level.txt reading manifest file 'pyflycapture2.egg-info/SOURCES.txt' reading manifest template 'MANIFEST.in' writing manifest file 'pyflycapture2.egg-info/SOURCES.txt' installing library code to build/bdist.linux-armv7l/egg running install_lib running build_ext skipping 'src/flycapture2.c' Cython extension (up-to-date) building 'flycapture2' extension arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/flycapture/C -IC:/Program Files/Point Grey Research/FlyCapture2/include/C -I/home/droppi/.virtualenvs/cv/lib/python3.5/site-packages/numpy/core/include -I/usr/include/python3.5m -I/home/droppi/.virtualenvs/cv/include/python3.5m -c src/flycapture2.c -o build/temp.linux-armv7l-3.5/src/flycapture2.o src/flycapture2.c:432:31: fatal error: FlyCapture2Defs_C.h: No such file or directory compilation terminated. error: command 'arm-linux-gnueabihf-gcc' failed with exit status 1 `

Are you aware of such an issue? Would you have a workaround?

Thank you in advance Best

[jordens]

https://github.com/jordens/pyflycapture2#install-point-grey-flycapture2-library

[jordens]

check that you have the heades in the usual locations (/usr/include/...) or adjust https://github.com/jordens/pyflycapture2/blob/master/setup.py

[ethanlarochelle]

@EvilGarfield I tried this a few months ago and kept hitting different issues. I know this doesn't really help, but I had an Intel MinnowBoard Max available and it works well on that without making changes. The physical size is similar to the Pi and has USB3 and SATA support.

[EvilGarfield]

I think that the problem is that FlyCapture is not installed the same way on an ARM architecture than on other. So I copied my files from the desktop PC to the Pi on /usr/include. This solved my error but now I'm stuck a bit farther down the road.

`

running install running bdist_egg running egg_info writing pyflycapture2.egg-info/PKG-INFO writing requirements to pyflycapture2.egg-info/requires.txt writing dependency_links to pyflycapture2.egg-info/dependency_links.txt writing top-level names to pyflycapture2.egg-info/top_level.txt reading manifest file 'pyflycapture2.egg-info/SOURCES.txt' reading manifest template 'MANIFEST.in' writing manifest file 'pyflycapture2.egg-info/SOURCES.txt' installing library code to build/bdist.linux-armv7l/egg running install_lib running build_ext skipping 'src/flycapture2.c' Cython extension (up-to-date) building 'flycapture2' extension arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/flycapture/C -IC:/Program Files/Point Grey Research/FlyCapture2/include/C -I/home/droppi/.virtualenvs/cv/lib/python3.5/site-packages/numpy/core/include -I/usr/include/python3.5m -I/home/droppi/.virtualenvs/cv/include/python3.5m -c src/flycapture2.c -o build/temp.linux-armv7l-3.5/src/flycapture2.o In file included from src/flycapture2.c:433:0: /usr/include/flycapture/C/FlyCapture2_C.h:395:3: warning: function declaration isn’t a prototype [-Wstrict-prototypes] fc2ForceAllIPAddressesAutomatically(); ^ /usr/include/flycapture/C/FlyCapture2_C.h:1533:3: warning: function declaration isn’t a prototype [-Wstrict-prototypes] ResetStats(); ^ In file included from /home/droppi/.virtualenvs/cv/lib/python3.5/site-packages/numpy/core/include/numpy/ndarraytypes.h:1788:0, from /home/droppi/.virtualenvs/cv/lib/python3.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:18, from /home/droppi/.virtualenvs/cv/lib/python3.5/site-packages/numpy/core/include/numpy/arrayobject.h:4, from src/flycapture2.c:437: /home/droppi/.virtualenvs/cv/lib/python3.5/site-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp]

warning "Using deprecated NumPy API, disable it by " \

^ src/flycapture2.c: In function ‘pyx_pf_11flycapture2_5Image_4array’: src/flycapture2.c:7139:36: warning: passing argument 1 of ‘(PyObject ()(PyTypeObject , PyArray_Descr , int, npy_intp , npy_intp , void , int, PyObject ))*(PyArray_API + 376u)’ from incompatible pointer type [-Wincompatible-pointer-types] pyx_t_1 = PyArray_NewFromDescr(((PyObject )__pyx_ptype_5numpy_ndarray), __ ^ src/flycapture2.c:7139:36: note: expected ‘PyTypeObject {aka struct _typeobject }’ but argument is of type ‘PyObject {aka struct _object *}’ creating build/lib.linux-armv7l-3.5 arm-linux-gnueabihf-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-Bsymbolic-functions -Wl,-z,relro -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 build/temp.linux-armv7l-3.5/src/flycapture2.o -LC:/Program Files/Point Grey Research/FlyCapture2/lib64/C -lflycapture-c -o build/lib.linux-armv7l-3.5/flycapture2.cpython-35m-arm-linux-gnueabihf.so /usr/bin/ld: cannot find -lflycapture-c collect2: error: ld returned 1 exit status error: command 'arm-linux-gnueabihf-gcc' failed with exit status 1

`

I am fairly new to programming and Linux in general and I struggle to understand the problem. I cannot find this -lflycapture-c even on my Desktop

[jordens]

libflycapture-c is one of the pointgrey packages

[jordens]

@EvilGarfield is this resolved now?

[chelsell]

@jordens I had the same problem, like you say it is fixed by copying the contents of flycapture.2.9.3.43_armhf/lib/C (including libflycapture-c.so) to /usr/lib. It's easy to miss this because the pointgrey installation instructions don't say to copy the contents of this directory to /usr/lib. Might be worth documenting in the installation instructions.

[jordens]

@chelsell Thanks! I don't really use pyflycapture2 much anymore. Could you write a few lines of instructions with the correct files and the correct locations?

[chelsell]

@jordens Happily! One somewhat unrelated question though--you mention that there is now PointGrey support for a python flycap wrapper, but I can't find it. Would you mind sharing a link?

[jordens]

here and here and here supposedly.

[chelsell]

@jordens Thanks