configure: support silent automake rules if possible

This gives us a much less noisy build and makes error stand out a lot more.

diff --git a/configure.in b/configure.in
index 243173b..7ee1a19 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -86,6 +86,11 @@ AM_INIT_AUTOMAKE($PACKAGE, $VERSION)
 
 # AM_MAINTAINER_MODE
 
+# Support silent build rules, requires at least automake-1.11. Disable
+# by either passing --disable-silent-rules to configure or passing V=1
+# to make
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
 dnl
 dnl Specific dir for HTML output ?
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