+# Create real indices from source files by running "makeindex" on
+# them. We depend on SRCS here because we *do* want to rebuild the
+# index if the source document changes, but we use an order-only
+# dependency (see the bbl rule below) on the idx files to prevent us
+# from going into a rebuild loop when the idx files are regenerated.
+%.ind: $(SRCS) | %.idx
+ makeindex $|