Fix make distcheck -- don't create README.rst unnecessarily in a build.

And fix duplicate targets in src/Makefile.

Makefile.am

@@ -5,21 +5,14 @@ SUBDIRS = src
 DISTCHECK_CONFIGURE_FLAGS = \
 	VMOD_DIR='$${libdir}/varnish/vmods'
 
-EXTRA_DIST = README.rst LICENSE COPYING
+EXTRA_DIST = README.rst
 
-doc_DATA = README.rst LICENSE COPYING
+dist_doc_DATA = README.rst LICENSE COPYING
 
-dist_man_MANS = vmod_re2.3
-MAINTAINERCLEANFILES = $(dist_man_MANS)
-
-vmod_re2.3: README.rst
-
-README.rst: src/vmod_re2.man.rst
+README.rst: src/vmod_re2.vcc
+	$(MAKE) -C src vmod_re2.man.rst
 	cp src/vmod_re2.man.rst README.rst
 
-src/vmod_re2.man.rst:
-	make -C src vmod_re2.man.rst
-
 %.1 %.2 %.3 %.4 %.5 %.6 %.7 %.8 %.9:
 if HAVE_RST2MAN
 	${RST2MAN} $< $@

src/Makefile.am

@@ -23,6 +23,9 @@ nodist_libvmod_re2_la_SOURCES = \
 	vcc_if.c \
 	vcc_if.h
 
+dist_man_MANS = vmod_re2.3
+MAINTAINERCLEANFILES = $(dist_man_MANS)
+
 libvmod_re2_la_LIBADD = @RE2_LIBS@
 
 vmod_re2.lo: vcc_if.c vcc_if.h
@@ -41,9 +44,6 @@ vre2/vre2.cpp: vre2/vre2.h
 
 vre2/vre2set.cpp: vre2/vre2set.h
 
-vcc_if.h vmod_re2.man.rst: @VMODTOOL@ $(top_srcdir)/src/vmod_re2.vcc
-	@VMODTOOL@ $(top_srcdir)/src/vmod_re2.vcc
-
 VMOD_TESTS = $(top_srcdir)/src/tests/*.vtc
 .PHONY: $(VMOD_TESTS)