make --enable-silent-rules configure option more useful * sparse-mx-ops: Rename from smx-ops. * genpropdoc.m: Write to stdout if filename is not supplied. * Makefile.am, build-aux/common.mk, doc/interpreter/Makefile.am, doc/interpreter/graphics_properties.mk, etc/icons/Makefile.am, libgui/Makefile.am, libinterp/Makefile.am, libinterp/corefcn/module.mk, libinterp/octave-value/module.mk, libinterp/operators/module.mk, libinterp/parse-tree/module.mk, liboctave/cruft/module.mk, liboctave/cruft/ranlib/module.mk, liboctave/cruft/slatec-fn/module.mk, liboctave/numeric/module.mk, liboctave/operators/module.mk, scripts/Makefile.am, scripts/java/module.mk, src/Makefile.am, test/Makefile.am: Preface rules with $(AM_V_GEN) or similar as needed. Improve consistency of rules. Prefer commands that write to stdout, redirecting output to $@-t, then moving to $@. * doc/interpreter/images.awk, libinterp/dldfcn/config-module.awk: Generate rules with $(AM_V_GEN).

--- a/libinterp/parse-tree/module.mk
+++ b/libinterp/parse-tree/module.mk
@@ -84,13 +84,14 @@
 ## will still be success and we will end up creating an empty
 ## oct-gperf.h file.
 parse-tree/oct-gperf.h: parse-tree/octave.gperf
-	$(GPERF) -t -C -D -G -L C++ -Z octave_kw_hash $< > $@-t1
-	$(SED) 's,lookup\[,gperf_lookup[,' < $@-t1 > $@-t
-	mv $@-t $@
+	$(AM_V_GEN)rm -f $@-t $@t1 $@ && \
+	$(GPERF) -t -C -D -G -L C++ -Z octave_kw_hash $< > $@-t1 && \
+	$(SED) 's,lookup\[,gperf_lookup[,' < $@-t1 > $@-t && \
+	mv $@-t $@ && \
 	rm -f $@-t1
 
 parse-tree/oct-parse.yy: parse-tree/oct-parse.in.yy
-	$(call subst-bison-api-decls,octave_)
+	$(AM_V_GEN)$(call subst-bison-api-decls,octave_)
 
 noinst_LTLIBRARIES += \
   parse-tree/libparse-tree.la \