ENH: out of source build for paraview plugins

- more consistent with the rest of the OpenFOAM source tree

- improve wmake / wclean behaviour

src/postProcessing/functionObjects/graphics/runTimePostProcessing/Allwclean

@@ -4,8 +4,8 @@ cd ${0%/*} || exit 1    # Run from this directory
 # Source the wmake functions
 . $WM_DIR/scripts/wmakeFunctions
 
-(
-    # Where are the generated files stored?
-    findObjectDir dummy.C
-    rm -rf "$objectsDir" > /dev/null 2>&1
-)
+# Where are the generated files stored?
+findObjectDir $PWD
+rm -rf "$objectsDir" > /dev/null 2>&1
+
+#------------------------------------------------------------------------------

src/postProcessing/functionObjects/graphics/runTimePostProcessing/Allwmake

@@ -4,11 +4,11 @@ cd ${0%/*} || exit 1    # Run from this directory
 # Source the wmake functions
 . $WM_DIR/scripts/wmakeFunctions
 
-# Store current directory
+# The source directory
 sourceDir=$PWD
 
 # Where are any generated files stored?
-findObjectDir dummy.C
+findObjectDir $sourceDir
 depDir="$objectsDir"
 
 echo