Index: libassuan-2.1.0/configure.ac
===================================================================
--- libassuan-2.1.0/configure.ac
+++ libassuan-2.1.0/configure.ac
@@ -342,6 +342,15 @@
 #
 AC_CHECK_FUNCS([flockfile funlockfile inet_pton])
 
+# if we didn't find inet_pton, it might be in -lsocket (which might
+# require -lnsl)
+if test X"$ac_cv_func_inet_pton" != X"yes" ; then
+	AC_SEARCH_LIBS([inet_pton],[socket],[],[],[-lnsl])
+	if test X"$ac_cv_search_inet_pton" != X"no" ; then
+		AC_DEFINE([HAVE_INET_PTON],1,[Define to 1 if you have `inet_pton'.])
+	fi
+fi
+
 # On some systems (e.g. Solaris) nanosleep requires linking to librl.
 # Given that we use nanosleep only as an optimization over a select
 # based wait function we want it only if it is available in libc.