[Bug-readline] Readline-7.0 Official patch 3

[Chet Ramey]

                           READLINE PATCH REPORT
                           =====================

Readline-Release: 7.0
Patch-ID: readline70-003

Bug-Reported-by:        Frédéric Brière <address@hidden>
Bug-Reference-ID:       <address@hidden>
Bug-Reference-URL:      
http://lists.gnu.org/archive/html/bug-readline/2017-01/msg00002.html

Bug-Description:

Readline-7.0 uses pselect(2) to allow readline to handle signals that do not
interrupt read(2), such as SIGALRM, before reading another character.  The
signal mask used in the pselect call did not take into account signals the
calling application blocked before calling readline().

Patch (apply with `patch -p0'):

*** ../readline-7.0-patched/input.c     2016-08-30 10:21:47.000000000 -0400
--- input.c     2017-01-23 10:21:56.000000000 -0500
***************
*** 514,517 ****
--- 514,518 ----
  #if defined (HAVE_PSELECT)
        sigemptyset (&empty_set);
+       sigprocmask (SIG_BLOCK, (sigset_t *)NULL, &empty_set);
        FD_ZERO (&readfds);
        FD_SET (fileno (stream), &readfds);
*** ../readline-7.0/patchlevel  2013-11-15 08:11:11.000000000 -0500
--- patchlevel  2014-03-21 08:28:40.000000000 -0400
***************
*** 1,3 ****
  # Do not edit -- exists only for use by patch
  
! 2
--- 1,3 ----
  # Do not edit -- exists only for use by patch
  
! 3

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/