[balsa] Make silent rules by default

[Peter Bloomfield <PeterB src gnome org>]

commit ddfae73d1e85f8620acb72604dd7ebde45813075
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Mon Jul 20 23:07:32 2009 -0400

    Make silent rules by default

 configure.in |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/configure.in b/configure.in
index f4eb65f..b24bc1e 100644
--- a/configure.in
+++ b/configure.in
@@ -20,6 +20,10 @@ AC_SUBST(BALSA_PATCHLEVEL)
 AC_SUBST(BALSA_VERSION)
 
 AM_INIT_AUTOMAKE(balsa, "$BALSA_MAJOR.$BALSA_REVISION.${BALSA_PATCHLEVEL}")
+# Automake-1.11 option for less verbose output
+# configure --disable-silent-rules to restore verbose
+m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
+
 AC_CONFIG_SRCDIR([src/main.c])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADERS([config.h])