Correct recent commit, keep static builds without dllmain

Signed-off-by: falkTX <falktx@falktx.com>

distrho/src/DistrhoUtils.cpp

@@ -32,8 +32,8 @@
 #endif
 
 #ifdef DISTRHO_OS_WINDOWS
-# if DISTRHO_IS_STANDALONE
-constexpr const HINSTANCE hInstance = nullptr;
+# if DISTRHO_IS_STANDALONE || defined(STATIC_BUILD)
+static constexpr const HINSTANCE hInstance = nullptr;
 # else
 static HINSTANCE hInstance = nullptr;