dnl search for necessary libraries
AC_SEARCH_LIBS(gethostbyname, nsl)
AC_SEARCH_LIBS(connect, socket)
-AC_SEARCH_LIBS(pthread_sigmask, pthread,,[AC_MSG_ERROR([missing pthread_sigmask])])
-if test x"$ac_cv_search_pthread_sigmask" != x"none required" ; then
- PTHREAD_LIBS=$ac_cv_search_pthread_sigmask
-fi
-AC_SUBST(PTHREAD_LIBS)
+AX_PTHREAD(, [AC_MSG_ERROR([missing pthread_sigmask])])
AC_DEFINE(OPEN_NOFOLLOW_ERRNO, ELOOP, errno returned by open with O_NOFOLLOW)