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Jun 21, 2023
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Move missing vcpkg information to prerequisites #731

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15 changes: 9 additions & 6 deletions doc/setup/installing_prerequisites.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -31,16 +31,19 @@ Therefore, it could make sense to still dynamically link against the C Runtime w

The easiest way to achieve static linking on Windows without setting all the stuff manually in Cmake and building _protobuf_ is to actually **install static _protobuf_ with dynamic c-runtime with vcpkg**:

Install vcpkg as per the vcpkg documentation.
Create a new triplet file for the required combination of static library linking with dynamic runtime (usually needed for dynamic linking to still work):
Create a file named x64-windows-static-md.cmake in the triplets directory with the following content:

----
vcpkg install --triplet=x64-windows-static-md protobuf
set(VCPKG_TARGET_ARCHITECTURE x64)
set(VCPKG_CRT_LINKAGE dynamic)
set(VCPKG_LIBRARY_LINKAGE static)
----

Build::

For the cmake configuration, we can directly specify our vcpkg installation:
Now the protobuf libraries can be built automatically using:
----
cmake .. -DVCPKG_TARGET_TRIPLET=x64-windows-static-md -DCMAKE_TOOLCHAIN_FILE=C:/path/to/vcpkg/scripts/buildsystems/vcpkg.cmake -A x64
cmake --build . --config Release
vcpkg install --triplet=x64-windows-static-md protobuf
----

== Linux
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6 changes: 6 additions & 0 deletions doc/setup/installing_windows_cpp.adoc
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Expand Up @@ -43,6 +43,12 @@ cd build
cmake .. [-G <generator>] [-DCMAKE_INSTALL_PREFIX=<osi-install-directory>]
----
+
If you used vcpkg to install protobuf, then provide the target and toolchain file information, as follows
+
----
cmake .. -DVCPKG_TARGET_TRIPLET=x64-windows-static-md -DCMAKE_TOOLCHAIN_FILE=C:/path/to/vcpkg/scripts/buildsystems/vcpkg.cmake -A x64 [-G <generator>] [-DCMAKE_INSTALL_PREFIX=<osi-install-directory>]
----

. Build and install OSI.
+
----
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