Index: cfe/trunk/tools/scan-build/scan-build
===================================================================
--- cfe/trunk/tools/scan-build/scan-build
+++ cfe/trunk/tools/scan-build/scan-build
@@ -1478,7 +1478,9 @@
 
       # Construct an absolute path.  Uses the current working directory
       # as a base if the original path was not absolute.
-      $Options{OutputDir} = abs_path(shift @$Args);
+      my $OutDir = shift @$Args;
+      mkpath($OutDir) unless (-e $OutDir);  # abs_path wants existing dir
+      $Options{OutputDir} = abs_path($OutDir);
 
       next;
     }