tests: Add Autoconf 2.63 compatibility support for AS_VAR_APPEND.

Reported-by: William Tu <[email protected]> Signed-off-by: Ben Pfaff <[email protected]>
marbindrakon · Feb 26, 2016 · fc99370 · fc99370
1 parent 98c23f6
commit fc99370
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/tests/ovs-macros.at b/tests/ovs-macros.at
@@ -153,3 +153,12 @@ on_exit () {
     mv cleanup.tmp cleanup
 }
 ])
+
+dnl Autoconf 2.63 compatibility verison of macro introduced in Autoconf 2.64:
+m4_ifndef([AS_VAR_APPEND],
+  [m4_divert_text([PREPARE_TESTS],
+    [as_var_append () {
+       eval $1=\$$1\$2
+     }
+])
+   m4_define([AS_VAR_APPEND], [as_var_append $1 $2])])