+2012-09-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ Signal-handler cleanup (Bug#12327).
+ * configure.ac (PTY_OPEN, PTY_TTY_NAME_SPRINTF):
+ Adjust to syssignal.h changes.
+ (SIGNAL_H_AB): Remove; no longer needed.
+
2012-09-04 Paul Eggert <eggert@cs.ucla.edu>
Simplify redefinition of 'abort' (Bug#12316).