Index: libint2/Makefile
===================================================================
--- libint2.orig/Makefile
+++ libint2/Makefile
@@ -82,8 +82,7 @@ distclean::
 	    (cd $${dir} && $(MAKE) $(DODEPENDOPT) distclean) || exit 1; \
 	  done
 	-rm -rf autom4te.cache config.status config.log conf*.file conf*.dir *.dSYM depcheck* libtool \
-Makedirlist libint2.pc include/libint2
-	test -f libint2.pc.in || rm -rf include/libint2
+Makedirlist libint2.pc
 
 targetclean::
 	for dir in $(SUBDIRS); \