--- a/icu/trunk/source/configure.in	(revision 32722)
+++ a/icu/trunk/source/configure.in	(working copy)
@@ -1205,6 +1205,7 @@ 
 
 # output the Makefiles
 AC_CONFIG_FILES([icudefs.mk \
+		Doxyfile \
 		Makefile \
 		data/pkgdataMakefile \
 		config/Makefile.inc \