update input qt

mupen64plus-input-qt/mupen64plus-input-qt.pro

@@ -47,7 +47,6 @@ SOURCES += osal/osal_dynamiclib_win32.c
         }
         INCLUDEPATH += ../mupen64plus-win32-deps/SDL2-2.0.6/include
     } else {
-        DEFINES -= UNICODE
         LIBS += -Wl,-Bdynamic -lSDL2
         INCLUDEPATH += /mingw64/include/SDL2 /mingw32/include/SDL2
     }

mupen64plus-input-qt/osal/osal_dynamiclib_win32.c

@@ -31,7 +31,9 @@ m64p_error osal_dynlib_open(m64p_dynlib_handle *pLibHandle, const char *pccLibra
     if (pLibHandle == NULL || pccLibraryPath == NULL)
         return M64ERR_INPUT_ASSERT;
 
-    *pLibHandle = LoadLibrary(pccLibraryPath);
+    wchar_t wstr[256];
+    mbstowcs(wstr, pccLibraryPath, 256);
+    *pLibHandle = LoadLibrary(wstr);
 
     if (*pLibHandle == NULL)
     {