* [Buildroot] [git commit] package/opencv4: fix build with gcc 4.8
@ 2021-11-12 21:49 Yann E. MORIN
0 siblings, 0 replies; only message in thread
From: Yann E. MORIN @ 2021-11-12 21:49 UTC (permalink / raw)
To: buildroot
commit: https://git.buildroot.net/buildroot/commit/?id=0f7761b6f99c7c5d27f6f385cad48a05bdae1bba
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
Fix the following build failure with gcc 4.8 raised since the addition
of the package in commit c23612b5db036fe89accb8db48690d1ce1be4b1b:
In file included from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/cap_ffmpeg_impl.hpp:100:0,
from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/cap_ffmpeg.cpp:50:
/home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/cap_ffmpeg_hw.hpp: In constructor 'HWAccelIterator::HWAccelIterator(cv::VideoAccelerationType, bool, AVDictionary*)':
/home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/cap_ffmpeg_hw.hpp:939:23: error: use of deleted function 'std::basic_istringstream<char>& std::basic_istringstream<char>::operator=(const std::basic_istringstream<char>&)'
s_stream_ = std::istringstream(accel_list);
^
In file included from /home/buildroot/autobuild/instance-3/output-1/host/opt/ext-toolchain/arm-none-linux-gnueabi/include/c++/4.8.3/complex:45:0,
from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/core/include/opencv2/core/cvstd.inl.hpp:47,
from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/core/include/opencv2/core.hpp:3306,
from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/include/opencv2/videoio.hpp:46,
from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/precomp.hpp:57,
from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/cap_ffmpeg.cpp:42:
/home/buildroot/autobuild/instance-3/output-1/host/opt/ext-toolchain/arm-none-linux-gnueabi/include/c++/4.8.3/sstream:272:11: note: 'std::basic_istringstream<char>& std::basic_istringstream<char>::operator=(const std::basic_istringstream<char>&)' is implicitly deleted because the default definition would be ill-formed:
class basic_istringstream : public basic_istream<_CharT, _Traits>
^
/home/buildroot/autobuild/instance-3/output-1/host/opt/ext-toolchain/arm-none-linux-gnueabi/include/c++/4.8.3/sstream:272:11: error: use of deleted function 'std::basic_istream<char>& std::basic_istream<char>::operator=(const std::basic_istream<char>&)'
Fixes:
- http://autobuild.buildroot.org/results/60f8846b435dafda0ced412d59ffe15bdff0810d
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
---
...eoio-src-cap_ffmpeg_impl.hpp-fix-build-wi.patch | 52 ++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/package/opencv4/0001-modules-videoio-src-cap_ffmpeg_impl.hpp-fix-build-wi.patch b/package/opencv4/0001-modules-videoio-src-cap_ffmpeg_impl.hpp-fix-build-wi.patch
new file mode 100644
index 0000000000..6d5d6d0647
--- /dev/null
+++ b/package/opencv4/0001-modules-videoio-src-cap_ffmpeg_impl.hpp-fix-build-wi.patch
@@ -0,0 +1,52 @@
+From 4c92a2869b9a8f736a12ba859b74e5cadce62387 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Fri, 12 Nov 2021 09:50:17 +0100
+Subject: [PATCH] modules/videoio/src/cap_ffmpeg_impl.hpp: fix build with gcc
+ 4.8
+
+Fix the following build failure with gcc 4.8:
+
+In file included from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/cap_ffmpeg_impl.hpp:100:0,
+ from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/cap_ffmpeg.cpp:50:
+/home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/cap_ffmpeg_hw.hpp: In constructor 'HWAccelIterator::HWAccelIterator(cv::VideoAccelerationType, bool, AVDictionary*)':
+/home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/cap_ffmpeg_hw.hpp:939:23: error: use of deleted function 'std::basic_istringstream<char>& std::basic_istringstream<char>::operator=(const std::basic_istringstream<char>&)'
+ s_stream_ = std::istringstream(accel_list);
+ ^
+In file included from /home/buildroot/autobuild/instance-3/output-1/host/opt/ext-toolchain/arm-none-linux-gnueabi/include/c++/4.8.3/complex:45:0,
+ from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/core/include/opencv2/core/cvstd.inl.hpp:47,
+ from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/core/include/opencv2/core.hpp:3306,
+ from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/include/opencv2/videoio.hpp:46,
+ from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/precomp.hpp:57,
+ from /home/buildroot/autobuild/instance-3/output-1/build/opencv4-4.5.4/modules/videoio/src/cap_ffmpeg.cpp:42:
+/home/buildroot/autobuild/instance-3/output-1/host/opt/ext-toolchain/arm-none-linux-gnueabi/include/c++/4.8.3/sstream:272:11: note: 'std::basic_istringstream<char>& std::basic_istringstream<char>::operator=(const std::basic_istringstream<char>&)' is implicitly deleted because the default definition would be ill-formed:
+ class basic_istringstream : public basic_istream<_CharT, _Traits>
+ ^
+/home/buildroot/autobuild/instance-3/output-1/host/opt/ext-toolchain/arm-none-linux-gnueabi/include/c++/4.8.3/sstream:272:11: error: use of deleted function 'std::basic_istream<char>& std::basic_istream<char>::operator=(const std::basic_istream<char>&)'
+
+Fixes:
+ - http://autobuild.buildroot.org/results/60f8846b435dafda0ced412d59ffe15bdff0810d
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Retrieved from:
+https://github.com/opencv/opencv/commit/4c92a2869b9a8f736a12ba859b74e5cadce62387]
+---
+ modules/videoio/src/cap_ffmpeg_impl.hpp | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/modules/videoio/src/cap_ffmpeg_impl.hpp b/modules/videoio/src/cap_ffmpeg_impl.hpp
+index d393b73ff4a2..76e1b855b7c8 100644
+--- a/modules/videoio/src/cap_ffmpeg_impl.hpp
++++ b/modules/videoio/src/cap_ffmpeg_impl.hpp
+@@ -93,6 +93,12 @@ extern "C" {
+ }
+ #endif
+
++// GCC 4.x compilation bug. Details: https://github.com/opencv/opencv/issues/20292
++#if (defined(__GNUC__) && __GNUC__ < 5) && !defined(__clang__)
++#undef USE_AV_HW_CODECS
++#define USE_AV_HW_CODECS 0
++#endif
++
+ //#define USE_AV_HW_CODECS 0
+ #ifndef USE_AV_HW_CODECS
+ #if LIBAVUTIL_VERSION_MAJOR >= 56 // FFMPEG 4.0+
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2021-11-12 21:50 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-11-12 21:49 [Buildroot] [git commit] package/opencv4: fix build with gcc 4.8 Yann E. MORIN
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.