$OpenBSD: patch-configure_ac,v 1.50 2018/03/15 23:00:19 sthen Exp $
Index: configure.ac
--- configure.ac.orig
+++ configure.ac
@@ -2136,7 +2136,7 @@ AST_EXT_TOOL_CHECK([NETSNMP], [net-snmp-config], , [--
 
 AST_EXT_LIB_CHECK([NEWT], [newt], [newtBell], [newt.h])
 
-AST_EXT_LIB_CHECK([UNIXODBC], [odbc], [SQLConnect], [sql.h], [])
+AST_EXT_LIB_CHECK([UNIXODBC], [iodbc], [SQLConnect], [sql.h], [-lpthread])
 
 AST_EXT_LIB_CHECK([OGG], [ogg], [ogg_sync_init], [])
 
