https://savannah.nongnu.org/patch/index.php?7090

--- configure.in	2010-02-11 18:29:40 +0000
+++ configure.in	2010-02-11 18:30:26 +0000
@@ -192,8 +192,6 @@
 AC_CHECK_LIB(socket,sendto,[EXOSIP_LIB="$EXOSIP_LIB -lsocket"])
 AC_CHECK_LIB(rt,clock_gettime,[EXOSIP_LIB="$EXOSIP_LIB -lrt"])
 
-AC_CHECK_LIB(ssl,SSL_CTX_new,[EXOSIP_LIB="$EXOSIP_LIB -lssl"])
-
 case $OS in
   openbsd*)
      ;;
@@ -363,6 +361,7 @@
 
 if test "$enable_openssl" = "yes" ; then
 	AC_CHECK_HEADERS(openssl/ssl.h)
+	AC_CHECK_LIB(ssl,SSL_CTX_new,[EXOSIP_LIB="$EXOSIP_LIB -lssl"])
 fi
 
 AC_ARG_ENABLE(srvrec,