configure: support Automake 1.12

Signed-off-by: Jonathan Dieter <jdieter@lesbg.com>
Signed-off-by: Ken Dreyer <ken.dreyer@inktank.com>

diff --git a/configure.ac b/configure.ac
index dc345f5cf970d96e61dcaa1422bab6d9d55a4fab..df5f051ff0d08df6afccb67a786e0ea2efb0cd2b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -29,6 +29,9 @@ AC_CONFIG_SUBDIRS([src/gtest])
 AC_CANONICAL_HOST
 AC_CANONICAL_TARGET
 
+# Fix automake problems in 1.12
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
+
 # Automake
 AM_INIT_AUTOMAKE
 AM_PROG_CC_C_O