"conda build conda" fails with error "cannot find hdf5.h" and build is pointing to a scrambled path like " _b_env_placehold_placehold_placehold_placehold.... goes on"

[VishnuMadhu]

I am pretty new to conda builds , please forgive my lack of knowledge
I wonder why no one has reported this issue.
For me conda build conda fails at 98% . Probable cause is some wrong headers included in modules/hdf/include/opencv2/hdf/hdf5.hpp .

But this issue seems to be already closed in the opencv - master long time back Fix: public hdf headers
On inspecting meta.yaml , I could see an opencv archive getting downloaded .

Can we change this archive to point to something new and do conda build ? Please provide suggestions for a successful build

[patricksnape]

The placeholder is expected conda behaviour - it has to do with inserting the maximum path possible so that relocatable binaries are created.

I obviously built the code here and uploaded it and didn't see the issue you are describing - so it's likely that your setup is slightly different than mine. In terms of a 'newer' version of OpenCV, 3.2.0 was just released but I haven't had time to invest in creating a working build for it yet (as this is a very time consuming effort) - see #14.

[VishnuMadhu]

Patrick , appreciate the quick response.
Apparently opencv-contrib tag 3.1.0 referenced by conda build is having the issue.

Do you have any docs that i can refer for making conda-recipe for opencv

[patricksnape]

You may have some luck setting this:

export CFLAGS="$CFLAGS -I$PREFIX/include"
export CXXFLAGS="$CXXFLAGS -I$PREFIX/include"

before running the CMake command?

[gauravpandeyamu]

@VishnuMadhu I am facing a similar problem. Were you able to resolve the issue?

[magsol]

Same; hdf5 is referenced in the meta.yaml file under both build and run dependencies, but for some reason is nonetheless failing around 98% build progress for OpenCV.

Though I did notice in the initial conda environment setup, before the build.sh script is invoked:

user@server:~/conda-opencv3$ conda build conda/
BUILD START: opencv3-3.1.0-py35_0
updating index in: /conda/conda-bld/linux-64
updating index in: /conda/conda-bld/noarch

The following NEW packages will be INSTALLED:

blas:            1.1-openblas                  conda-forge
bzip2:           1.0.6-0                       conda-forge
ca-certificates: 2017.1.23-0                   conda-forge
certifi:         2017.1.23-py35_0              conda-forge
cmake:           3.7.1-4                       conda-forge
curl:            7.52.1-0                      conda-forge
eigen:           3.2.7-0                       menpo      
expat:           2.1.0-2                       conda-forge
jsoncpp:         0.10.6-1                      conda-forge
libarchive:      3.2.1-2                       conda-forge
libgfortran:     3.0.0-1                                  
libiconv:        1.14-4                        conda-forge
libuv:           1.11.0-0                      conda-forge
ncurses:         5.9-10                        conda-forge
numpy:           1.12.1-py35_blas_openblas_200 conda-forge [blas_openblas]
openblas:        0.2.19-1                      conda-forge
openssl:         1.0.2h-3                      conda-forge
pip:             9.0.1-py35_0                  conda-forge
python:          3.5.3-1                       conda-forge
readline:        6.2-0                         conda-forge
setuptools:      33.1.1-py35_0                 conda-forge
sqlite:          3.13.0-1                      conda-forge
tk:              8.5.19-1                      conda-forge
wheel:           0.29.0-py35_0                 conda-forge
xz:              5.2.2-0                       conda-forge
zlib:            1.2.11-0                      conda-forge

there's no mention of hdf5 anywhere in that list of installed packages.

[patricksnape]

Please use the conda-forge opencv where I just pushed a new build for OpenCV 3.2.0 (wait an hour or two for it to be uploaded)

[magsol]

oooOOOoooo, thank you, will do!

[remoteblue]

@patricksnape , it works. Thanks!