C++ fix

@echo off cls set DRIVE_LETTER=%1: set PATH=%DRIVE_LETTER%\MinGW\bin;%DRIVE_LETTER%\MinGW\msys\1.0\bin;%DRIVE_LETTER%\MinGW\gtkmm3\bin;%DRIVE_LETTER%\MinGW\gtk\bin;c:\Windows;c:\Windows\system32 set PROJECT_PATH=. make DRIVE_LETTER="%DRIVE_LETTER%" PROJECT_DIR="%PROJECT_PATH%"