revert the change. GF_LIB_PATH needs to be checked

Setup.bat

@@ -27,9 +27,21 @@ REM Check command line options
 goto Loop
 :Continue
 
+REM Try to determine install location
+if "%dest%"=="" (
+  REM Separate paths with search path separator ; and pick first one
+  for %%p in ("%GF_LIB_PATH:;=";"%") do (
+    set dest=%%~p
+    goto BreakLibPath
+  )
+)
+:BreakLibPath
+
 if "%dest%"=="" (
   echo Unable to determine where to install the RGL. Please do one of the following:
   echo  - Pass the --dest=... flag to this script
+  echo  - Set the GF_LIB_PATH environment variable
+  REM echo  - Compile & install GF from the gf-core repository (must be in same directory as gf-rgl)
   exit /b
 )
 

Setup.hs

@@ -9,7 +9,7 @@ import System.IO.Error (catchIOError)
 import System.Exit (ExitCode(..),exitFailure)
 import System.Environment (getArgs,lookupEnv)
 import System.Process (rawSystem,readProcess)
-import System.FilePath ((</>))
+import System.FilePath ((</>),splitSearchPath)
 import System.Directory (createDirectoryIfMissing,copyFile,getDirectoryContents,removeDirectoryRecursive,findFile)
 #if __GLASGOW_HASKELL__>=800
 import System.Directory (getModificationTime,setModificationTime)
@@ -60,6 +60,7 @@ errLocation :: String
 errLocation = unlines $
   [ "Unable to determine where to install the RGL. Please do one of the following:"
   , " - Pass the " ++ destination_flag ++ "... flag to this script"
+  , " - Set the GF_LIB_PATH environment variable"
   , " - Compile & install GF from the gf-core repository"
   ]
 
@@ -118,10 +119,11 @@ mkInfo = do
   let gf = maybe default_gf id (getFlag gf_flag args)
   -- Look for install location in a few different places
   let mflag = getFlag destination_flag args
+  menvar <- lookupEnv "GF_LIB_PATH" >>= return . fmap (head . splitSearchPath)
   mbuilt <- catchIOError (readProcess gf ["--version"] "" >>= return . getPath) (\e -> return Nothing)
   let
     inst_dir =
-      case catMaybes [mflag,mbuilt] of
+      case catMaybes [mflag,menvar,mbuilt] of
         [] -> Nothing
         p:_ -> Just p
   let verbose = verbose_switch `elem` args || verbose_switch_short `elem` args

Setup.sh

@@ -35,6 +35,9 @@ for arg in "$@"; do
 done
 
 # Try to determine install location
+if [ -z "$dest" ]; then
+  dest=$(echo "$GF_LIB_PATH" | sed 's/:.*$//')
+fi
 if [ -z "$dest" ] && [ "$(gf --version | tail -1 | cut -c -14)" == "Shared folder:" ]; then
   dest=$(gf --version | tail -1 | cut -c 16-)
   if [ -n "$dest" ]; then dest="${dest}/lib"; fi
@@ -42,6 +45,7 @@ fi
 if [ -z "$dest" ]; then
   echo "Unable to determine where to install the RGL. Please do one of the following:"
   echo " - Pass the --dest=... flag to this script"
+  echo " - Set the GF_LIB_PATH environment variable"
   echo " - Compile & install GF from the gf-core repository"
   exit 1
 fi