rmgrdesc.c is not auto-generated now, though it apparently was the last
time the Makefile was updated.
RMGRDESCSOURCES = $(notdir $(wildcard $(top_srcdir)/src/backend/access/rmgrdesc/*desc.c))
RMGRDESCOBJS = $(patsubst %.c,%.o,$(RMGRDESCSOURCES))
-EXTRA_CLEAN = $(RMGRDESCSOURCES) xlogreader.c rmgrdesc.c
+EXTRA_CLEAN = $(RMGRDESCSOURCES) xlogreader.c
ifdef USE_PGXS
PG_CONFIG = pg_config
override CPPFLAGS := -DFRONTEND $(CPPFLAGS)
-rmgrdesc.c xlogreader.c: % : $(top_srcdir)/src/backend/access/transam/%
+xlogreader.c: % : $(top_srcdir)/src/backend/access/transam/%
rm -f $@ && $(LN_S) $< .
$(RMGRDESCSOURCES): % : $(top_srcdir)/src/backend/access/rmgrdesc/%