Remove warnings only on Windows

Author: cacharle

.github/workflows/ci.yml

@@ -108,13 +108,16 @@ jobs:
     - name: build_libzmq_cmake
       if: ${{ matrix.libzmqbuild == 'cmake' }}
       run: |
+        if [[ ! ${{ matrix.os }} = 'windows' ]]
+        then
+          export CMAKE_CXX_FLAGS="-Wno-error=stringop-truncation -Wno-stringop-overflow"
+          export CMAKE_C_FLAGS="-Wno-error=stringop-truncation -Wno-stringop-overflow"
+        fi
         cmake -Hlibzmq-${{ matrix.libzmq }} -Blibzmq-build ${{ matrix.platform}} \
           -DWITH_PERF_TOOL=OFF \
           -DZMQ_BUILD_TESTS=OFF \
           -DCMAKE_BUILD_TYPE=Release \
-          -DENABLE_DRAFTS=${{ matrix.drafts }} \
-          -DCMAKE_CXX_FLAGS="-Wno-error=stringop-truncation -Wno-stringop-overflow" \
-          -DCMAKE_C_FLAGS="-Wno-error=stringop-truncation -Wno-stringop-overflow"
+          -DENABLE_DRAFTS=${{ matrix.drafts }}
         cmake --build libzmq-build --config ${BUILDTYPE} -j ${THREADS}
         echo "LIBZMQ=${PWD}/libzmq-build" >> ${GITHUB_ENV}