--- rxvt-unicode/autoconf/configure.in	2006/01/16 16:38:47	1.76
+++ rxvt-unicode/autoconf/configure.in	2006/01/17 11:53:07	1.78
@@ -712,23 +712,14 @@
 AC_TYPE_SIGNAL
 dnl> AC_FUNC_VPRINTF
 
-dnl# Note: On Ultrix, setsid() does weirdo stuff, disable it
-case "$host_alias" in
-    *ultrix) ac_cv_func_setsid='no' ;;
-    *) break;;
-esac
-
 AC_CHECK_FUNCS( \
-	atexit \
 	revoke \
 	unsetenv \
 	setutent \
 	seteuid \
 	setreuid \
-	setsid \
-	setpgrp \
-	setpgid \
 	_getpty \
+	getpt \
 	posix_openpt \
 	grantpt \
 	unlockpt \
@@ -1168,7 +1159,7 @@
    AC_DEFINE(XIMCB_PROTO_BROKEN, 1, Define if your XIMCallback specifies XIC as first type.)
 fi
 
-if test x$ac_cv_func_posix_openpt = xno; then
+if test x$ac_cv_func_getpt = xno -a x$ac_cv_func_posix_openpt = xno; then
   AC_CHECK_FUNC(openpty, [], [AC_CHECK_LIB(util, openpty, [LIBS="$LIBS -lutil"])])
 fi
 
@@ -1176,6 +1167,8 @@
 AC_CACHE_CHECK(for pty/tty type, rxvt_cv_ptys,
 [if test x$ac_cv_func_openpty = xyes -o x$ac_cv_lib_util_openpty = xyes; then
     rxvt_cv_ptys=OPENPTY
+ else if test x$ac_cv_func_getpt = xyes; then
+    rxvt_cv_ptys=GLIBC
  else if test x$ac_cv_func_posix_openpt = xyes; then
     rxvt_cv_ptys=POSIX
  else if test x$ac_cv_func__getpty = xyes; then
@@ -1204,8 +1197,12 @@
 fi
 fi
 fi
+fi
 ])
 
+if test x$rxvt_cv_ptys = xGLIBC; then
+  AC_DEFINE(PTYS_ARE_GETPT, 1, Define for this pty type)
+fi
 if test x$rxvt_cv_ptys = xPOSIX; then
   AC_DEFINE(PTYS_ARE_POSIX, 1, Define for this pty type)
 fi