build: resolve automake-1.12 warnings

/usr/share/automake-1.12/am/ltlibrary.am: warning:
'ulogd_output_SQLITE3.la': linking libtool libraries using a non-POSIX
archiver requires 'AM_PROG_AR' in 'configure.ac'
(one for each .la)

Signed-off-by: Jan Engelhardt <jengelh@inai.de>

diff --git a/configure.ac b/configure.ac
index c70887d6efee37dd8adbcd733ce98f37dc71ce9c..df0e9d3707b27a9d78a3111faee886306cb08570 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -6,6 +6,7 @@ AM_INIT_AUTOMAKE([-Wall foreign tar-pax no-dist-gzip dist-bzip2 1.10b])
 AC_CONFIG_HEADER([config.h])
 AC_CONFIG_MACRO_DIR([m4])
 
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 dnl kernel style compile messages
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])