[PATCH] build: use automake's --silent-rules option when possible

[Jim Meyering]

I like automake's upcoming --silent-rules option enough
that I'm making it the default (when possible) for coreutils.
Since I bootstrap using automake from its "next" branch, it's
enabled for me.  And that translates to enhanced Makefile.in
files in the tarballs I generate.  The net result is that when
you run "make" (using distributed Makefile.in files), you'll
see something like this:

 ...
 CC  id.o
 CC  kill.o
 CC  operand2sig.o
 CC  logname.o
 CC  pathchk.o
 CC  printenv.o
 CC  printf.o
 CC  pwd.o
 CC  runcon.o
 CC  seq.o
 CC  sleep.o
 CC  tee.o
 CC  test.o
 CC  timeout.o
 CC  true.o
 CC  truncate.o
 CC  tty.o
 CC  whoami.o
 CC  yes.o
 CC  base64.o
 CC  setuidgid.o
 CC  getlimits.o
 CC  su.o
 AR  libver.a
 CCLD  uname
 CCLD  chroot
 CCLD  hostid
 CCLD  nice
 CCLD  df
 CCLD  pinky
 CCLD  users
 CCLD  uptime
 CCLD  stty
 CCLD  [
 CCLD  chcon
 CCLD  who
 CCLD  chgrp
 CCLD  chown
 CCLD  chmod
 ...

rather than less-readable lines full of gcc command-line options.


>From 9f39fa8559a8f87e1199f11f6cee295ac8cf6781 Mon Sep 17 00:00:00 2001
From: Jim Meyering <address@hidden>
Date: Sat, 28 Mar 2009 12:48:24 +0100
Subject: [PATCH] build: use automake's --silent-rules option when possible

* bootstrap: Use automake's --silent-rules option.
---
 bootstrap |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/bootstrap b/bootstrap
index 27e4ec2..e834a2b 100755
--- a/bootstrap
+++ b/bootstrap
@@ -686,6 +686,12 @@ find "$m4_base" "$source_base" \
   -depth \( -name '*.m4' -o -name '*.[ch]' \) \
   -type l -xtype l -delete > /dev/null 2>&1

+# Use automake's --silent-rules option, if possible.
+automake="${AUTOMAKE-automake} --add-missing --copy --force-missing"
+(${AUTOMAKE-automake} --help) 2>&1 \
+    | grep -e '^  *--silent-rules' > /dev/null \
+  && automake="$automake --silent-rules"
+
 # Reconfigure, getting other files.

 for command in \
@@ -693,7 +699,7 @@ for command in \
   "${ACLOCAL-aclocal} --force -I m4" \
   "${AUTOCONF-autoconf} --force" \
   "${AUTOHEADER-autoheader} --force" \
-  "${AUTOMAKE-automake} --add-missing --copy --force-missing"
+  "$automake"
 do
   if test "$command" = libtool; then
     use_libtool=0
--
1.6.2.rc1.285.gc5f54