--- ssmtp-2.61.orig/configure.in	2004-07-23 06:40:29.000000000 +0200
+++ ssmtp-2.61/configure.in	2011-01-17 14:46:46.000000000 +0100
@@ -24,8 +24,8 @@ AC_C_CONST
 AC_STRUCT_TM
 
 dnl Checks for libraries.
-AC_CHECK_LIB(nsl, gethostname)
-AC_CHECK_LIB(socket, socket)
+AC_SEARCH_LIBS(gethostname, nsl)
+AC_SEARCH_LIBS(socket, socket)
 
 dnl Checks for library functions.
 AC_TYPE_SIGNAL