make: Added AX_LIB_SQLITE3
diff --git a/config.h.in b/config.h.in
index ec9b6bc..7d5216d 100644
--- a/config.h.in
+++ b/config.h.in
@@ -30,6 +30,9 @@
 /* 1 if have memset in memory.h. */
 #undef HAVE_MEMSET
 
+/* Have the SQLITE3 library */
+#undef HAVE_SQLITE3
+
 /* 1 if have stdint.h. */
 #undef HAVE_STDINT