build: enable AM_SILENT_RULES

This shuts up make by default (can be reversed with "make V=1" or
--disable-silent-rules).  This is useful since warnings and error
messages become more visible with less noise.

Tested on Linux with GNU make and FreeBSD with system's BSD make.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Acked-by: Paul Jakma <paul@jakma.org>
(cherry picked from commit cc81308148271aeed2277e16885ddca7e2d5bb9b)

diff --git a/configure.ac b/configure.ac
index 2672b0fa6ac8c4ac55475cb7b986ada1c4629bbc..ca8aaf8aff1905898760de239ad21dc21b270e69 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -19,6 +19,7 @@ AC_CANONICAL_HOST()
 AC_CANONICAL_TARGET()
 
 AM_INIT_AUTOMAKE(1.6)
+AM_SILENT_RULES([yes])
 AC_CONFIG_HEADERS(config.h)
 
 AC_PATH_PROG(PERL, perl)