Patch #881820: look for openpty and forkpty also in libbsd.
Will backport.
diff --git a/configure b/configure
index 7ea5a8f..8a05757 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
#! /bin/sh
-# From configure.in Revision: 41925 .
+# From configure.in Revision: 41953 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.59 for python 2.5.
#
@@ -14741,7 +14741,81 @@
#define HAVE_OPENPTY 1
_ACEOF
LIBS="$LIBS -lutil"
+else
+ echo "$as_me:$LINENO: checking for openpty in -lbsd" >&5
+echo $ECHO_N "checking for openpty in -lbsd... $ECHO_C" >&6
+if test "${ac_cv_lib_bsd_openpty+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lbsd $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char openpty ();
+int
+main ()
+{
+openpty ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_bsd_openpty=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_bsd_openpty=no
fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_bsd_openpty" >&5
+echo "${ECHO_T}$ac_cv_lib_bsd_openpty" >&6
+if test $ac_cv_lib_bsd_openpty = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_OPENPTY 1
+_ACEOF
+ LIBS="$LIBS -lbsd"
+fi
+
+
+fi
+
fi
done
@@ -14909,7 +14983,81 @@
#define HAVE_FORKPTY 1
_ACEOF
LIBS="$LIBS -lutil"
+else
+ echo "$as_me:$LINENO: checking for forkpty in -lbsd" >&5
+echo $ECHO_N "checking for forkpty in -lbsd... $ECHO_C" >&6
+if test "${ac_cv_lib_bsd_forkpty+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lbsd $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char forkpty ();
+int
+main ()
+{
+forkpty ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_bsd_forkpty=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_bsd_forkpty=no
fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_bsd_forkpty" >&5
+echo "${ECHO_T}$ac_cv_lib_bsd_forkpty" >&6
+if test $ac_cv_lib_bsd_forkpty = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_FORKPTY 1
+_ACEOF
+ LIBS="$LIBS -lbsd"
+fi
+
+
+fi
+
fi
done