Fix / Workaround for issue #11224. (cont.)

* Extended script "boost_mpl_preprocess.py" to automatically call script
  "fix_boost_mpl_preprocess.py" prior to pre-processing and thereby
  automatically fix issue #11224.
* Extended script "fix_boost_mpl_preprocess.py" to just allow checking
  if the selected Boost source-directory requires fixing because of
  issue #11224.
* Adjusted the "README.txt" accordingly.

Signed-off-by: Deniz Bahadir <dbahadir@benocs.com>

preprocessed/boost_mpl_preprocess.py

@@ -8,6 +8,7 @@
 # See http://stackoverflow.com/a/20660264/3115457 for further information.
 # See http://stackoverflow.com/a/29627158/3115457 for further information.
 
+import fix_boost_mpl_preprocess as fixmpl
 import argparse
 import sys
 import os
@@ -164,9 +165,20 @@ def main():
     if args.want_map:
         containers.append('map')
     if containers == []:
-        print "Nothing to do. (Why did you prevent generating pre-processed headers for all Boost.MPL container types?"
+        print "Nothing to do."
+        print "(Why did you prevent generating pre-processed headers for all Boost.MPL container types?)"
         sys.exit(0)
 
+    # Possibly fix the header-comments of input-files needed for pre-processing.
+    if args.verbose:
+        print "Checking if prior to pre-processing some input-files need fixing."
+    needFixing = fixmpl.check_input_files(headerDir, sourceDir, containers, args.seqType, args.verbose)
+    if needFixing:
+        if args.verbose:
+            print "Fixing of some input-files prior to pre-processing is needed."
+            print "Will fix them now!"
+        fixmpl.fix_input_files(headerDir, sourceDir, containers, args.seqType, args.verbose)
+
     # Some verbose debug output.
     if args.verbose:
         print "Containers for which to pre-process headers: ", containers