[Buildroot] [PATCH 1/1] package/opencv4: fix build with protobuf 3.18.0

Arnout Vandecappelle arnout at mind.be
Sun Sep 26 19:49:32 UTC 2021



On 26/09/2021 10:15, Fabrice Fontaine wrote:
> Fix the following build failure raised since bump of protobuf to version
> 3.18.0 in commit c28924920d6df13a61879e3b301f71dd5edf2880:
> 
> /home/giuliobenetti/autobuild/run/instance-0/output-1/build/opencv3-3.4.15/modules/dnn/src/caffe/caffe_io.cpp: In function 'bool cv::dnn::ReadProtoFromBinary(google::protobuf::io::ZeroCopyInputStream*, google::protobuf::Message*)':
> /home/giuliobenetti/autobuild/run/instance-0/output-1/build/opencv3-3.4.15/modules/dnn/src/caffe/caffe_io.cpp:1114:67: error: no matching function for call to 'google::protobuf::io::CodedInputStream::SetTotalBytesLimit(const int&, int)'
>   1114 |     coded_input.SetTotalBytesLimit(kProtoReadBytesLimit, 536870912);
>        |                                                                   ^
> In file included from /home/giuliobenetti/autobuild/run/instance-0/output-1/build/opencv3-3.4.15/modules/dnn/src/caffe/caffe_io.cpp:93:
> /home/giuliobenetti/autobuild/run/instance-0/output-1/host/mipsel-buildroot-linux-gnu/sysroot/usr/include/google/protobuf/io/coded_stream.h:401:8: note: candidate: 'void google::protobuf::io::CodedInputStream::SetTotalBytesLimit(int)'
>    401 |   void SetTotalBytesLimit(int total_bytes_limit);
>        |        ^~~~~~~~~~~~~~~~~~
> /home/giuliobenetti/autobuild/run/instance-0/output-1/host/mipsel-buildroot-linux-gnu/sysroot/usr/include/google/protobuf/io/coded_stream.h:401:8: note:   candidate expects 1 argument, 2 provided
> 
> Fixes:
>   - http://autobuild.buildroot.org/results/2856060cb59250f4ef7ab75a848a3dc0be9b821b
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>

  Applied to master, thanks.

  Regards,
  Arnout

> ---
>   ...gument-version-of-SetTotalBytesLimit.patch | 39 +++++++++++++++++++
>   1 file changed, 39 insertions(+)
>   create mode 100644 package/opencv4/0001-Use-the-one-argument-version-of-SetTotalBytesLimit.patch
> 
> diff --git a/package/opencv4/0001-Use-the-one-argument-version-of-SetTotalBytesLimit.patch b/package/opencv4/0001-Use-the-one-argument-version-of-SetTotalBytesLimit.patch
> new file mode 100644
> index 0000000000..d169e04ef2
> --- /dev/null
> +++ b/package/opencv4/0001-Use-the-one-argument-version-of-SetTotalBytesLimit.patch
> @@ -0,0 +1,39 @@
> +From 9cfa84313c5833d7295fcf57be93d5d2aaadfd88 Mon Sep 17 00:00:00 2001
> +From: Vincent Rabaud <vrabaud at google.com>
> +Date: Sat, 10 Jul 2021 00:21:52 +0200
> +Subject: [PATCH] Use the one argument version of SetTotalBytesLimit.
> +
> +The two argument versions has been deprecated, cf
> +https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.io.coded_stream
> +
> +[Retrieved from:
> +https://github.com/opencv/opencv/commit/9cfa84313c5833d7295fcf57be93d5d2aaadfd88]
> +Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
> +---
> + modules/dnn/src/caffe/caffe_io.cpp | 5 +++++
> + 1 file changed, 5 insertions(+)
> +
> +diff --git a/modules/dnn/src/caffe/caffe_io.cpp b/modules/dnn/src/caffe/caffe_io.cpp
> +index 2fc4d84f4604..ebecf95eea3a 100644
> +--- a/modules/dnn/src/caffe/caffe_io.cpp
> ++++ b/modules/dnn/src/caffe/caffe_io.cpp
> +@@ -92,6 +92,7 @@
> + #ifdef HAVE_PROTOBUF
> + #include <google/protobuf/io/coded_stream.h>
> + #include <google/protobuf/io/zero_copy_stream_impl.h>
> ++#include <google/protobuf/stubs/common.h>
> + #include <google/protobuf/text_format.h>
> +
> + #include <opencv2/core.hpp>
> +@@ -1111,7 +1112,11 @@ static const int kProtoReadBytesLimit = INT_MAX;  // Max size of 2 GB minus 1 by
> +
> + bool ReadProtoFromBinary(ZeroCopyInputStream* input, Message *proto) {
> +     CodedInputStream coded_input(input);
> ++#if GOOGLE_PROTOBUF_VERSION >= 3006000
> ++    coded_input.SetTotalBytesLimit(kProtoReadBytesLimit);
> ++#else
> +     coded_input.SetTotalBytesLimit(kProtoReadBytesLimit, 536870912);
> ++#endif
> +
> +     return proto->ParseFromCodedStream(&coded_input);
> + }
> 


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