configure.ac: add AM_PROG_AR

During an autoreconf, automake recommends:

/usr/share/automake-1.14/am/ltlibrary.am: warning: 'libatspi.la': linking libtool libraries using a non-POSIX
/usr/share/automake-1.14/am/ltlibrary.am: archiver requires 'AM_PROG_AR' in 'configure.ac'

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/configure.ac b/configure.ac
index cb8e89a..cdea54c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -28,6 +28,7 @@ AM_INIT_AUTOMAKE([1.9 -Wall foreign no-dist-gzip dist-xz])
 AM_SILENT_RULES([yes])
 
 AC_PROG_CC
+AM_PROG_AR
 LT_INIT([disable-static])
 PKG_PROG_PKG_CONFIG