-AC_CHECK_LIB([pthread], [pthread_create])
-if test "x$ac_cv_lib_pthread_pthread_create" != xyes; then
- AC_MSG_ERROR([pthread is required])
-fi
-
-AC_CHECK_LIB([gnutls], [gnutls_certificate_verify_peers2])
-if test "x$ac_cv_lib_gnutls_gnutls_certificate_verify_peers2" != xyes; then
- AC_MSG_ERROR([GnuTLS is required])
-fi
+AC_CHECK_LIB([pthread], [pthread_create],
+ [], [AC_MSG_ERROR([pthread is required])])
+AC_CHECK_LIB([gnutls], [gnutls_certificate_verify_peers2],
+ [], [AC_MSG_ERROR([GnuTLS is required])])