diff --git a/configure.ac b/configure.ac
index e8332e7..5c8f874 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,8 +9,10 @@ AM_SILENT_RULES([yes])
 AC_CONFIG_SRCDIR([common.h])
 AC_PROG_CC_C99
 AC_USE_SYSTEM_EXTENSIONS
-AC_SEARCH_LIBS(clock_gettime, [rt],
+AC_SEARCH_LIBS([clock_gettime], [rt],
   [AC_DEFINE(HAVE_CLOCK_GETTIME,[1],[define if you have clock_gettime()])])
+AC_SEARCH_LIBS([getaddrinfo], [resolv nsl])
+AC_SEARCH_LIBS([socket], [socket])
 PKG_CHECK_MODULES([libsodium], [libsodium >= 1.0.4],
   [CFLAGS="$CFLAGS $libsodium_CFLAGS"], [echo "not found"])
 AC_CONFIG_FILES([Makefile])