diff --git a/pri/build_opts.pri b/pri/build_opts.pri
index dd777741f..4a6d4b322 100644
--- a/pri/build_opts.pri
+++ b/pri/build_opts.pri
@@ -19,6 +19,13 @@ gcc|g++|clang* {
 
 msvc {
   QMAKE_CXXFLAGS *= /std:c++17
+
+  # Link statically to runtime.
+  # QMAKE_CXXFLAGS_RELEASE *= /MT
+  # QMAKE_CXXFLAGS_DEBUG *= /MTd
+  # QMAKE_CXXFLAGS -= /MDd -MDd
+  # QMAKE_CXXFLAGS_RELEASE -= /MDd -MDd
+  # QMAKE_CXXFLAGS_DEBUG -= /MDd -MDd
 }
 
 clang* {