* [Buildroot] [PATCH] package/opencv3: allow to use pkg-config while cross-compiling
@ 2019-07-23 19:50 Romain Naour
2019-07-23 22:09 ` Thomas Petazzoni
2019-08-04 20:15 ` Peter Korsgaard
0 siblings, 2 replies; 3+ messages in thread
From: Romain Naour @ 2019-07-23 19:50 UTC (permalink / raw)
To: buildroot
Since version 3.4.1 [1], opencv disable pkg-config while cross-compiling to
avoid host headers/libraries poisoning.
Due to this, opencv fail to detect ffmpeg, gstreamer and gtk dependencies
even if the corresponding support is requested by
BR2_PACKAGE_OPENCV3_WITH_{FFMPEG,GSTREAMER,GTK2,GTK3}.
Maybe other dependencies are affected by this issue...
While configuring opencv we can notice the following messages:
"-- OpenCV disables pkg-config to avoid using of host libraries. Consider using PKG_CONFIG_LIBDIR to specify target SYSROOT"
"-- Can't find ffmpeg - 'pkg-config' utility is missing"
As the result ffmpeg and gstreamer are not enabled:
-- Video I/O:
-- FFMPEG: NO
-- avcodec: NO
-- avformat: NO
-- avutil: NO
-- swscale: NO
-- avresample: NO
-- GStreamer: NO
-- libv4l/libv4l2: NO
-- v4l/v4l2: linux/videodev2.h
We can fixes this by adding a new option OPENCV_ENABLE_PKG_CONFIG=ON
-- Video I/O:
-- FFMPEG: YES
-- avcodec: YES (ver 58.35.100)
-- avformat: YES (ver 58.20.100)
-- avutil: YES (ver 56.22.100)
-- swscale: YES (ver 5.3.100)
-- avresample: YES (ver 4.0.0)
-- GStreamer:
-- base: YES (ver 1.16.0)
-- video: YES (ver 1.16.0)
-- app: YES (ver 1.16.0)
-- riff: YES (ver 1.16.0)
-- pbutils: YES (ver 1.16.0)
-- libv4l/libv4l2: NO
-- v4l/v4l2: linux/videodev2.h
Add host-pkgconf in the dependencies.
If there is a path poisoning issue, it will be detected by the toolchain
paranoid wrapper.
[1] https://github.com/opencv/opencv/commit/c4f9ff0285130bd8bcf9d87a9ea6949bdd7e9e5d
Signed-off-by: Romain Naour <romain.naour@smile.fr>
Cc: Samuel Martin <s.martin49@gmail.com>
Cc: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Cc: Bernd Kuhls <bernd.kuhls@t-online.de>
---
This patch should be backported to Buildroot 2019.02 that use opencv 3.4.2.
---
package/opencv3/opencv3.mk | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/package/opencv3/opencv3.mk b/package/opencv3/opencv3.mk
index 7fa9a6e8a5..6046f159af 100644
--- a/package/opencv3/opencv3.mk
+++ b/package/opencv3/opencv3.mk
@@ -34,7 +34,8 @@ OPENCV3_CONF_OPTS += \
-DBUILD_PERF_TESTS=$(if $(BR2_PACKAGE_OPENCV3_BUILD_PERF_TESTS),ON,OFF) \
-DBUILD_TESTS=$(if $(BR2_PACKAGE_OPENCV3_BUILD_TESTS),ON,OFF) \
-DBUILD_WITH_DEBUG_INFO=OFF \
- -DDOWNLOAD_EXTERNAL_TEST_DATA=OFF
+ -DDOWNLOAD_EXTERNAL_TEST_DATA=OFF \
+ -DOPENCV_ENABLE_PKG_CONFIG=ON
ifeq ($(BR2_PACKAGE_OPENCV3_BUILD_TESTS)$(BR2_PACKAGE_OPENCV3_BUILD_PERF_TESTS),)
OPENCV3_CONF_OPTS += -DINSTALL_TEST=OFF
@@ -225,7 +226,7 @@ OPENCV3_CONF_OPTS += \
-DWITH_WEBP=OFF \
-DWITH_XINE=OFF
-OPENCV3_DEPENDENCIES += zlib
+OPENCV3_DEPENDENCIES += host-pkgconf zlib
ifeq ($(BR2_PACKAGE_OPENCV3_WITH_FFMPEG),y)
OPENCV3_CONF_OPTS += -DWITH_FFMPEG=ON
--
2.20.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [Buildroot] [PATCH] package/opencv3: allow to use pkg-config while cross-compiling
2019-07-23 19:50 [Buildroot] [PATCH] package/opencv3: allow to use pkg-config while cross-compiling Romain Naour
@ 2019-07-23 22:09 ` Thomas Petazzoni
2019-08-04 20:15 ` Peter Korsgaard
1 sibling, 0 replies; 3+ messages in thread
From: Thomas Petazzoni @ 2019-07-23 22:09 UTC (permalink / raw)
To: buildroot
On Tue, 23 Jul 2019 21:50:40 +0200
Romain Naour <romain.naour@smile.fr> wrote:
> Since version 3.4.1 [1], opencv disable pkg-config while cross-compiling to
> avoid host headers/libraries poisoning.
>
> Due to this, opencv fail to detect ffmpeg, gstreamer and gtk dependencies
> even if the corresponding support is requested by
> BR2_PACKAGE_OPENCV3_WITH_{FFMPEG,GSTREAMER,GTK2,GTK3}.
>
> Maybe other dependencies are affected by this issue...
>
> While configuring opencv we can notice the following messages:
> "-- OpenCV disables pkg-config to avoid using of host libraries. Consider using PKG_CONFIG_LIBDIR to specify target SYSROOT"
> "-- Can't find ffmpeg - 'pkg-config' utility is missing"
>
> As the result ffmpeg and gstreamer are not enabled:
> -- Video I/O:
> -- FFMPEG: NO
> -- avcodec: NO
> -- avformat: NO
> -- avutil: NO
> -- swscale: NO
> -- avresample: NO
> -- GStreamer: NO
> -- libv4l/libv4l2: NO
> -- v4l/v4l2: linux/videodev2.h
>
> We can fixes this by adding a new option OPENCV_ENABLE_PKG_CONFIG=ON
>
> -- Video I/O:
> -- FFMPEG: YES
> -- avcodec: YES (ver 58.35.100)
> -- avformat: YES (ver 58.20.100)
> -- avutil: YES (ver 56.22.100)
> -- swscale: YES (ver 5.3.100)
> -- avresample: YES (ver 4.0.0)
> -- GStreamer:
> -- base: YES (ver 1.16.0)
> -- video: YES (ver 1.16.0)
> -- app: YES (ver 1.16.0)
> -- riff: YES (ver 1.16.0)
> -- pbutils: YES (ver 1.16.0)
> -- libv4l/libv4l2: NO
> -- v4l/v4l2: linux/videodev2.h
>
> Add host-pkgconf in the dependencies.
>
> If there is a path poisoning issue, it will be detected by the toolchain
> paranoid wrapper.
>
> [1] https://github.com/opencv/opencv/commit/c4f9ff0285130bd8bcf9d87a9ea6949bdd7e9e5d
>
> Signed-off-by: Romain Naour <romain.naour@smile.fr>
> Cc: Samuel Martin <s.martin49@gmail.com>
> Cc: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> Cc: Bernd Kuhls <bernd.kuhls@t-online.de>
> ---
> This patch should be backported to Buildroot 2019.02 that use opencv 3.4.2.
> ---
> package/opencv3/opencv3.mk | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
Applied to master, thanks.
Thomas
--
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Buildroot] [PATCH] package/opencv3: allow to use pkg-config while cross-compiling
2019-07-23 19:50 [Buildroot] [PATCH] package/opencv3: allow to use pkg-config while cross-compiling Romain Naour
2019-07-23 22:09 ` Thomas Petazzoni
@ 2019-08-04 20:15 ` Peter Korsgaard
1 sibling, 0 replies; 3+ messages in thread
From: Peter Korsgaard @ 2019-08-04 20:15 UTC (permalink / raw)
To: buildroot
>>>>> "Romain" == Romain Naour <romain.naour@smile.fr> writes:
> Since version 3.4.1 [1], opencv disable pkg-config while cross-compiling to
> avoid host headers/libraries poisoning.
> Due to this, opencv fail to detect ffmpeg, gstreamer and gtk dependencies
> even if the corresponding support is requested by
> BR2_PACKAGE_OPENCV3_WITH_{FFMPEG,GSTREAMER,GTK2,GTK3}.
> Maybe other dependencies are affected by this issue...
> While configuring opencv we can notice the following messages:
> "-- OpenCV disables pkg-config to avoid using of host libraries. Consider using PKG_CONFIG_LIBDIR to specify target SYSROOT"
> "-- Can't find ffmpeg - 'pkg-config' utility is missing"
> As the result ffmpeg and gstreamer are not enabled:
> -- Video I/O:
> -- FFMPEG: NO
> -- avcodec: NO
> -- avformat: NO
> -- avutil: NO
> -- swscale: NO
> -- avresample: NO
> -- GStreamer: NO
> -- libv4l/libv4l2: NO
> -- v4l/v4l2: linux/videodev2.h
> We can fixes this by adding a new option OPENCV_ENABLE_PKG_CONFIG=ON
> -- Video I/O:
> -- FFMPEG: YES
> -- avcodec: YES (ver 58.35.100)
> -- avformat: YES (ver 58.20.100)
> -- avutil: YES (ver 56.22.100)
> -- swscale: YES (ver 5.3.100)
> -- avresample: YES (ver 4.0.0)
> -- GStreamer:
> -- base: YES (ver 1.16.0)
> -- video: YES (ver 1.16.0)
> -- app: YES (ver 1.16.0)
> -- riff: YES (ver 1.16.0)
> -- pbutils: YES (ver 1.16.0)
> -- libv4l/libv4l2: NO
> -- v4l/v4l2: linux/videodev2.h
> Add host-pkgconf in the dependencies.
> If there is a path poisoning issue, it will be detected by the toolchain
> paranoid wrapper.
> [1] https://github.com/opencv/opencv/commit/c4f9ff0285130bd8bcf9d87a9ea6949bdd7e9e5d
> Signed-off-by: Romain Naour <romain.naour@smile.fr>
> Cc: Samuel Martin <s.martin49@gmail.com>
> Cc: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> Cc: Bernd Kuhls <bernd.kuhls@t-online.de>
> ---
> This patch should be backported to Buildroot 2019.02 that use opencv 3.4.2.
Committed to 2019.02.x and 2019.05.x, thanks.
--
Bye, Peter Korsgaard
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-07-23 19:50 [Buildroot] [PATCH] package/opencv3: allow to use pkg-config while cross-compiling Romain Naour
2019-07-23 22:09 ` Thomas Petazzoni
2019-08-04 20:15 ` Peter Korsgaard
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