sync proto version in document

sony · Dec 4, 2023 · 5edff67 · 5edff67
1 parent 166a06f
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diff --git a/doc/build/build.md b/doc/build/build.md
@@ -32,8 +32,8 @@ You can also use another distribution (e.g. [Pyenv](https://github.com/pyenv/pye
 [Google Protocol Buffer](https://github.com/google/protobuf) compiler is also required to create NNabla's neural network format serializer/desrializer in Python or C++.
 
 ```shell
-curl -L https://github.com/google/protobuf/releases/download/v3.19.6/protoc-3.19.6-linux-x86_64.zip -o /tmp/protoc-3.19.6-linux-x86_64.zip
-sudo unzip -d /usr/local /tmp/protoc-3.19.6-linux-x86_64.zip && sudo chmod 755 /usr/local/bin/protoc
+curl -L https://github.com/google/protobuf/releases/download/v3.20.3/protoc-3.20.3-linux-x86_64.zip -o /tmp/protoc-3.20.3-linux-x86_64.zip
+sudo unzip -d /usr/local /tmp/protoc-3.20.3-linux-x86_64.zip && sudo chmod 755 /usr/local/bin/protoc
 ```
 
 ### Build and installation

diff --git a/doc/build/build_android.md b/doc/build/build_android.md
@@ -62,12 +62,12 @@ Following build dependencies needs to be installed by the user manually.
 Unlike [Python Package compilation](./build.md) which requires
 `protoc` compiler only, the NNabla C++ utility library requires
 protobuf C++ library too.  The following snippet running on your
-terminal will build and install protobuf-3.19.6 from source.
+terminal will build and install protobuf-3.20.3 from source.
 
 ```shell
-curl -L https://github.com/google/protobuf/archive/v3.19.6.tar.gz -o protobuf-v3.19.6.tar.gz
-tar xvf protobuf-v3.19.6.tar.gz
-cd protobuf-3.19.6
+curl -L https://github.com/google/protobuf/archive/v3.20.3.tar.gz -o protobuf-v3.20.3.tar.gz
+tar xvf protobuf-v3.20.3.tar.gz
+cd protobuf-3.20.3
 mkdir build build-android
 cd build
 cmake -DCMAKE_POSITION_INDEPENDENT_CODE=ON -Dprotobuf_BUILD_TESTS=OFF -DCMAKE_CXX_STANDARD=14 ../cmake

diff --git a/doc/build/build_cpp_utils.md b/doc/build/build_cpp_utils.md
@@ -34,12 +34,12 @@ Note: You can choose one of the following two installing methods.
 Unlike [Python Package compilation](./build.md) which requires
 `protoc` compiler only, the NNabla C++ utility library requires
 protobuf C++ library too.  The following snippet running on your
-terminal will build and install protobuf-3.1.0 from source.
+terminal will build and install protobuf-3.20.3 from source.
 
 ```shell
-curl -L https://github.com/google/protobuf/archive/v3.19.6.tar.gz -o protobuf-v3.19.6.tar.gz
-tar xvf protobuf-v3.19.6.tar.gz
-cd protobuf-3.19.6
+curl -L https://github.com/google/protobuf/archive/v3.20.3.tar.gz -o protobuf-v3.20.3.tar.gz
+tar xvf protobuf-v3.20.3.tar.gz
+cd protobuf-3.20.3
 mkdir build && cd build
 cmake -DCMAKE_POSITION_INDEPENDENT_CODE=ON -Dprotobuf_BUILD_TESTS=OFF ../cmake
 make