Env variable for dir overrides (#38) (#40)

install.bat

@@ -1,33 +1,48 @@
 @echo off
 
-IF "%QHOME%"=="" (
-    ECHO ERROR: Enviroment variable QHOME is NOT defined 
-    EXIT /B
+SETLOCAL
+IF NOT DEFINED Q_SHARED_LIB_DIR (
+    IF NOT DEFINED QHOME (
+        ECHO ERROR: Environment variable QHOME is NOT defined
+        EXIT /B
+    )
+    SET Q_SHARED_LIB_DIR=%QHOME%\w64
+)
+IF NOT DEFINED Q_SCRIPT_DIR (
+    IF NOT DEFINED QHOME (
+        ECHO ERROR: Environment variable QHOME is NOT defined
+        EXIT /B
+    )
+    SET Q_SCRIPT_DIR=%QHOME%
 )
 
-IF NOT EXIST %QHOME%\w64 (
-    ECHO ERROR: Installation destination %QHOME%\w64 does not exist
+IF NOT EXIST %Q_SHARED_LIB_DIR% (
+    ECHO ERROR: Library installation destination %Q_SHARED_LIB_DIR% does not exist
     EXIT /B
 )
 
+IF NOT EXIST %Q_SCRIPT_DIR% (
+    ECHO ERROR: Script installation destination %Q_SCRIPT_DIR% does not exist
+    EXIT /B
+)
 
 IF EXIST q (
-    ECHO Copying q script to %QHOME%
-    COPY q\* %QHOME%
+    ECHO Copying q script to %Q_SCRIPT_DIR%
+    COPY q\* %Q_SCRIPT_DIR%
     IF %ERRORLEVEL% NEQ 0 (
         ECHO ERROR: Copy failed
         EXIT /B %ERRORLEVEL%
     )
 )
 
 IF EXIST lib (
-    ECHO Copying DLL to %QHOME%\w64
-    COPY lib\* %QHOME%\w64\
+    ECHO Copying DLL to %Q_SHARED_LIB_DIR%
+    COPY lib\* %Q_SHARED_LIB_DIR%
     IF %ERRORLEVEL% NEQ 0 (
         ECHO ERROR: Copy failed
         EXIT /B %ERRORLEVEL%
     )
 )
 
 ECHO Installation complete
-
+ENDLOCAL