Bug 749681

Summary:	media-libs/opencv-4.5.0[examples]: samples/cpp/digits_lenet.cpp:16:10: fatal error: opencv2/dnn.hpp: No such file or directory
Product:	Gentoo Linux	Reporter:	Kobboi <gentoo>
Component:	Current packages	Assignee:	Amy Liffey <amynka>
Status:	RESOLVED FIXED
Severity:	normal	CC:	leonchik1976, orzel, rossbridger.cc, sam
Priority:	Normal	Keywords:	PullRequest
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://github.com/gentoo/gentoo/pull/17964
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	746596
Attachments:	build.log.gz

Description Kobboi 2020-10-17 11:09:57 UTC

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Reproducible: Always




 * Package:    media-libs/opencv-4.5.0
 * Repository: gentoo
 * Maintainer: amynka@gentoo.org
 * USE:        abi_x86_64 amd64 contrib cpu_flags_x86_popcnt cpu_flags_x86_sse cpu_flags_x86_sse2 cpu_flags_x86_sse3 cpu_flags_x86_sse4_1 cpu_flags_x86_sse4_2 cpu_flags_x86_ssse3 eigen elibc_glibc examples features2d ffmpeg gstreamer jpeg kernel_linux opencl opencvapps opengl openmp png python python_targets_python3_7 qt5 threads tiff userland_GNU vaapi
 * FEATURES:   compressdebug installsources network-sandbox preserve-libs sandbox splitdebug userpriv usersandbox

Comment 1 Sam James archtester

2020-10-17 11:24:11 UTC

Full build.log and emerge --info please.

Comment 2 Kobboi 2020-10-17 11:25:01 UTC

Trying a build with USE=-examples first.

Comment 3 Kobboi 2020-10-17 11:42:35 UTC

Compiles fine with USE=-examples

Comment 4 Kobboi 2020-10-17 11:56:39 UTC

Created attachment 666188 [details]
build.log.gz

Comment 5 Sam James archtester

2020-10-17 11:57:46 UTC

--info too? thank you!

Comment 6 Ross Charles C. 2020-10-17 12:13:11 UTC

Does it work if you enable contribdnn and dnnsamples USE flag?

Comment 7 Kobboi 2020-10-17 14:42:31 UTC

(In reply to Ross Charles C. from comment #6)
> Does it work if you enable contribdnn and dnnsamples USE flag?

It does.

Comment 8 Larry the Git Cow gentoo-dev

2020-11-03 07:18:33 UTC

The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c92eaa6a7d93400503334e9c65df2b8e400ab90f

commit c92eaa6a7d93400503334e9c65df2b8e400ab90f
Author:     Ross Charles Campbell <rossbridger.cc@gmail.com>
AuthorDate: 2020-10-18 14:59:46 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2020-11-03 07:18:26 +0000

    media-libs/opencv: various fixes
    
     - Explicitly depends on virtual/lapacke to prevent its cmake build scripts from
    implicitly disabling lapack support when it can't find lapacke.h.
    
     - Link with cblas when sci-libs/lapack is supplimented as the default lapack
    implementation.
    
     - examples USE requires contribdnn USE to be enabled to prevent build failure.
    
    Closes: https://bugs.gentoo.org/700176
    Closes: https://bugs.gentoo.org/749681
    Closes: https://bugs.gentoo.org/717812
    Closes: https://bugs.gentoo.org/701790
    Closes: https://bugs.gentoo.org/704518
    Package-Manager: Portage-3.0.8, Repoman-3.0.1
    Signed-off-by: Ross Charles Campbell <rossbridger.cc@gmail.com>
    Closes: https://github.com/gentoo/gentoo/pull/17964
    Signed-off-by: Sam James <sam@gentoo.org>

 .../opencv-4.5.0-link-with-cblas-for-lapack.patch      | 18 ++++++++++++++++++
 media-libs/opencv/opencv-4.5.0.ebuild                  |  8 +++++++-
 2 files changed, 25 insertions(+), 1 deletion(-)