Fixed root dictionary generation for out-of-tree build

src/Makefile.am

@@ -85,7 +85,7 @@ libdatabricxx_rdict.cxx: $(libdatabricxx_la_headers) databricxx_LinkDef.h
 	$(ROOTCLING) -f $@.tmp -s libdatabricxx@SHLIBEXT@ -rml libdatabricxx@SHLIBEXT@ -rmf libdatabricxx.rootmap.tmp -c $(CPPFLAGS) $(CXXFLAGS) -I$(includedir) $+
 	@# Some magic to prefix header names with "$(PACKAGE)/", and only that, in dictionary and rootmap:
 	$(GREP) -F -v '"'"`pwd`"'/",' $@.tmp | $(SED) 's|"\([^"]*/\)\?\([^/"]*[.]h\)",|"'$(PACKAGE)/'\2",| ; s|\\"\([^"]*/\)\?\([^/"]*[.]h\)\\"\\n"|\\"'$(PACKAGE)/'\2\\"\\n"|' > $@.tmp2
-	$(SED) 's|\$$clingAutoload\$$\([^/""]\+/\)*|$$clingAutoload$$'$(PACKAGE)'/|; /.*DICTPAYLOAD(.*/,/.*)DICTPAYLOAD.*/ s|#include "\([^/"]\+/\)*\(.*\)"|#include <'$(PACKAGE)'/\2>|' $@.tmp2 > $@ && $(RM) $@.tmp $@.tmp2
+	$(SED) 's|\$$clingAutoload\$$/\?\([^/""]\+/\)*|$$clingAutoload$$'$(PACKAGE)'/|; /.*DICTPAYLOAD(.*/,/.*)DICTPAYLOAD.*/ s|#include "/\?\([^/"]\+/\)*\(.*\)"|#include <'$(PACKAGE)'/\2>|' $@.tmp2 > $@ && $(RM) $@.tmp $@.tmp2
 	$(SED) 's|\(header \+\)\([^ ].*/\)\?\([^ ].*[.]h\)|\1'$(PACKAGE)/'\3|' libdatabricxx.rootmap.tmp > libdatabricxx.rootmap && $(RM) libdatabricxx.rootmap.tmp
 
 .libs/libdatabricxx.rootmap: libdatabricxx.la