[FYI] {maint} build: improve silencing of automake build system

[Stefano Lattarini]

In this change, we continue the silencing of the automake build
system that has been started in commit v1.11-642-g17542c3, but
which has been left incomplete there for an (absent-mindness)
mistake.

* Makefile.am (INSTALL): Silence the recipe.
(automake, aclocal): Likewise, and improve them a little since
we are at it.
* lib/Automake/Makefile.am (Config.pm): Likewise.
---
 Makefile.am              |   10 ++++------
 lib/Automake/Makefile.am |    8 +++-----
 2 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 83bcc7c..e8330f5 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -91,17 +91,15 @@ do_subst = sed \
 automake: automake.in
 aclocal: aclocal.in
 automake aclocal: Makefile
-       rm -f $@ address@hidden
-       $(do_subst) $(srcdir)/address@hidden >address@hidden
-       chmod +x address@hidden
-       chmod a-w address@hidden
-       mv -f address@hidden $@
+       $(AM_V_at)rm -f $@ address@hidden
+       $(AM_V_GEN)$(do_subst) $(srcdir)/address@hidden >address@hidden
+       $(AM_V_at)chmod a+x,a-w address@hidden && mv -f address@hidden $@
 
 ## The master location for INSTALL is lib/INSTALL.
 ## This is where `make fetch' will install new versions.
 ## Make sure we also update this copy.
 INSTALL: lib/INSTALL
-       cp $(srcdir)/lib/INSTALL $@
+       $(AM_V_GEN)cp $(srcdir)/lib/INSTALL $@
 
 ################################################################
 ##
diff --git a/lib/Automake/Makefile.am b/lib/Automake/Makefile.am
index 0858b68..cfc7272 100644
--- a/lib/Automake/Makefile.am
+++ b/lib/Automake/Makefile.am
@@ -64,10 +64,8 @@ do_subst = in=`echo $@ | sed 's/\.[^.]*$$//'`; sed \
 ## $(datadir) or other do_subst'ituted variables change.
 ## Use chmod a-w to prevent people from editing the wrong file by accident.
 Config.pm: Config.in Makefile
-       rm -f Config.tmp Config.pm
-       $(do_subst) $(srcdir)/Config.in >Config.tmp
-       chmod +x Config.tmp
-       chmod a-w Config.tmp
-       mv -f Config.tmp Config.pm
+       $(AM_V_at)rm -f $@ address@hidden
+       $(AM_V_GEN)$(do_subst) $(srcdir)/Config.in >address@hidden
+       $(AM_V_at)chmod a+x,a-w address@hidden && mv -f address@hidden $@
 
 EXTRA_DIST = Config.in
-- 
1.7.7.3