Link vcruntime140 statically.

.github/workflows/build.yml

@@ -27,19 +27,19 @@ jobs:
         triplet: x86-windows-static
         token: ${{ github.token }}
 
-    # NOTE: Ninja does not support specifying an architecture
+    # NOTE: Ninja does not support specifying an architecture, so I am going with the default which seems to be MSBuild
     # NOTE: CMAKE_GENERATOR_PLATFORM must take WIN32, not x86 because consistency (thanks to https://stackoverflow.com/questions/28350214/#comment121308920_52846043 and https://github.com/microsoft/vcpkg/issues/15465)
     - name: Configure
-      run: cmake -DCMAKE_GENERATOR_PLATFORM=WIN32 -DCMAKE_TOOLCHAIN_FILE="${{ github.workspace }}/vcpkg/scripts/buildsystems/vcpkg.cmake" -DVCPKG_TARGET_TRIPLET=x86-windows-static -DVCPKG_MANIFEST_MODE=OFF -DCMAKE_BUILD_TYPE=Debug -S . -B build
+      run: cmake -DCMAKE_GENERATOR_PLATFORM=WIN32 -DCMAKE_TOOLCHAIN_FILE="${{ github.workspace }}/vcpkg/scripts/buildsystems/vcpkg.cmake" -DVCPKG_TARGET_TRIPLET=x86-windows-static -DVCPKG_MANIFEST_MODE=OFF -DCMAKE_BUILD_TYPE=Release -S . -B build
 
     - name: Build
-      run: cmake --build build
+      run: cmake --build build --config Release
 
     - name: Strip
-      run: strip -s build/Debug/libpresage.dll
+      run: strip -s build/Release/libpresage.dll
 
     - name: Upload
       uses: actions/upload-artifact@v4
       with:
-        path: build/Debug/libpresage.dll
+        path: build/Release/libpresage.dll
         name: libpresage.dll

CMakeLists.txt

@@ -21,6 +21,9 @@ FetchContent_MakeAvailable(Corrosion)
 set(Rust_PROFILE "release" CACHE STRING "Rust profile")
 set_property(CACHE Rust_PROFILE PROPERTY STRINGS "dev" "release")
 corrosion_import_crate(MANIFEST_PATH ${CMAKE_CURRENT_SOURCE_DIR}/src/rust/Cargo.toml PROFILE ${Rust_PROFILE})
+corrosion_add_target_rustflags(purple_presage_backend "-C target-feature=+crt-static")
+# https://stackoverflow.com/questions/31770604/how-to-generate-statically-linked-executables
+# maybe also look at https://github.com/chrisdenton/static_vcruntime
 
 # obtain version string from back-end metadata
 execute_process(COMMAND ${Rust_CARGO_CACHED} metadata --format-version 1 --no-deps --manifest-path ${CMAKE_CURRENT_SOURCE_DIR}/src/rust/Cargo.toml OUTPUT_VARIABLE BACKEND_METADATA)
@@ -67,6 +70,7 @@ else()
     # gcc_s util rt pthread m dl c
 endif()
 set_property(TARGET ${TARGET_NAME} PROPERTY COMPILE_WARNING_AS_ERROR ON) # needs cmake 3.24, but is not critical
+set_property(TARGET ${TARGET_NAME} PROPERTY MSVC_RUNTIME_LIBRARY "MultiThreaded") # link vcruntime140 release version statically, see https://cmake.org/cmake/help/latest/prop_tgt/MSVC_RUNTIME_LIBRARY.html
 
 target_compile_definitions(${TARGET_NAME} PRIVATE PLUGIN_VERSION=${PLUGIN_VERSION})
 target_include_directories(${TARGET_NAME} PRIVATE ${PURPLE_INCLUDE_DIRS})

README.md

@@ -93,18 +93,20 @@ protoc needs to be in your PATH. You can install it with any method you like, in
 
 Same as Linux build instructions, but may need to modify the configuration:
 
-1. Generate project:
+1. Generate MSBuild project:
 
-        cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_GENERATOR_PLATFORM=WIN32 -DCMAKE_TOOLCHAIN_FILE="…/vcpkg/scripts/buildsystems/vcpkg.cmake" -DVCPKG_TARGET_TRIPLET=x86-windows-static -DRust_CARGO_TARGET="i686-pc-windows-msvc" ..
+        cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_GENERATOR_PLATFORM=WIN32 -DCMAKE_TOOLCHAIN_FILE="…/vcpkg/scripts/buildsystems/vcpkg.cmake" -DVCPKG_TARGET_TRIPLET=x86-windows-static -DRust_CARGO_TARGET="i686-pc-windows-msvc" ..
 
     If necessary, the rust tool-chain version can be specified via `-DRust_TOOLCHAIN="1.75-i686-pc-windows-msvc"`.
 
 2. Build, Install and Run:
 
         cmake --build .
-        cmake --install . --config Debug
+        cmake --install . --config Release
         cmake --build . --target run
 
+When using the "Debug" configuration, the linker complains about mismatching configurations. The implications of this are unknown.
+
 #### Notes
 
 purple-presage must be built with MSVC. MinGW's GCC encountered a number of issues such as [incompatibility with rustc versions newer than 1.69](https://github.com/rust-lang/rust/issues/112368) and not shipping libbcrypt by default.