added missing header boundaryextractor.hh

[[Imported from SVN: r3693]]

grid/uggrid/Makefile.am

@@ -5,7 +5,7 @@ if UG
 noinst_LTLIBRARIES = libuggrid.la
 
 libuggrid_la_SOURCES  = uggrid.cc boundaryextractor.cc
-libuggrid_la_CXXFLAGS = $(AM_CPPFLAGS) $(UG_CPPFLAGS)
+libuggrid_la_CXXFLAGS = $(AM_CPPFLAGS) $(UG_CPPFLAGS) #-DDUNE_EXPRESSIONTEMPLATES
 libuggrid_la_LIBADD   = $(UG_LDFLAGS) $(UG_LIBS2) $(UG_LIBS3)
 
 endif
@@ -16,7 +16,7 @@ uggrid_HEADERS = uggridentity.cc uggridgeometry.cc \
   ugfunctions.hh uggridentity.hh uggridgeometry.hh \
   uggridhieriterator.hh uggridleveliterator.hh ugincludes.hh \
   ugintersectionit.hh ugtypes.hh ug_undefs.hh uggridindexsets.hh \
-  ugfunctions3d.hh uggridleafiterator.hh
+  ugfunctions3d.hh uggridleafiterator.hh boundaryextractor.hh
 
 # tricks like undefAllMacros.pl don't have to be shipped, have they?
 # Oliver Sander: It depends. undefAllMacros.pl creates the file ug_undefs.hh