added librarypath: shared library convenience in bash, keeping LD_LIBRARY_PATH and DYLD_LIBRARY_PATH separate;

--- a/lib/scripts/getsettings	Wed Jan 19 15:22:35 2011 +0100
+++ b/lib/scripts/getsettings	Wed Jan 19 21:00:16 2011 +0100
@@ -63,6 +63,31 @@
 fi
 HOME_JVM="$HOME"
 
+#shared library convenience
+function librarypath () {
+  for X in "$@"
+  do
+    case "$ISABELLE_PLATFORM" in
+      *-darwin)
+        if [ -z "$DYLD_LIBRARY_PATH" ]; then
+          DYLD_LIBRARY_PATH="$X"
+        else
+          DYLD_LIBRARY_PATH="$X:$DYLD_LIBRARY_PATH"
+        fi
+        export DYLD_LIBRARY_PATH
+        ;;
+      *)
+        if [ -z "$LD_LIBRARY_PATH" ]; then
+          LD_LIBRARY_PATH="$X"
+        else
+          LD_LIBRARY_PATH="$X:$LD_LIBRARY_PATH"
+        fi
+        export LD_LIBRARY_PATH
+        ;;
+    esac
+  done
+}
+
 #CLASSPATH convenience
 function classpath () {
   for X in "$@"

--- a/lib/scripts/run-polyml	Wed Jan 19 15:22:35 2011 +0100
+++ b/lib/scripts/run-polyml	Wed Jan 19 21:00:16 2011 +0100
@@ -39,8 +39,7 @@
   POLYLIB="$ML_HOME"
 fi
 
-export LD_LIBRARY_PATH="$POLYLIB:$LD_LIBRARY_PATH"
-export DYLD_LIBRARY_PATH="$POLYLIB:$DYLD_LIBRARY_PATH"
+librarypath "$POLYLIB"
 
 
 ## prepare databases