1 files changed, 25 insertions, 20 deletions

diff --git a/src/term.c b/src/term.c
index f1a09b39cf9..f4117d67dec 100644
--- a/src/term.c
+++ b/src/term.c
@@ -25,8 +25,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include <sys/file.h>
 #include <sys/time.h>
 #include <unistd.h>
-#include <signal.h>
-#include <setjmp.h>
 
 #include "lisp.h"
 #include "termchar.h"
@@ -1498,7 +1496,7 @@ append_glyph (struct it *it)
         {
           glyph->resolved_level = it->bidi_it.resolved_level;
           if ((it->bidi_it.type & 7) != it->bidi_it.type)
-            abort ();
+            emacs_abort ();
           glyph->bidi_type = it->bidi_it.type;
         }
       else
@@ -1695,7 +1693,7 @@ append_composite_glyph (struct it *it)
         {
           glyph->resolved_level = it->bidi_it.resolved_level;
           if ((it->bidi_it.type & 7) != it->bidi_it.type)
-            abort ();
+            emacs_abort ();
           glyph->bidi_type = it->bidi_it.type;
         }
       else
@@ -1780,7 +1778,7 @@ append_glyphless_glyph (struct it *it, int face_id, const char *str)
     {
       glyph->resolved_level = it->bidi_it.resolved_level;
       if ((it->bidi_it.type & 7) != it->bidi_it.type)
-        abort ();
+        emacs_abort ();
       glyph->bidi_type = it->bidi_it.type;
     }
   else
@@ -2250,7 +2248,7 @@ get_named_tty (const char *name)
   struct terminal *t;
 
   if (!name)
-    abort ();
+    emacs_abort ();
 
   for (t = terminal_list; t; t = t->next_terminal)
     {
@@ -2798,7 +2796,7 @@ create_tty_output (struct frame *f)
   struct tty_output *t = xzalloc (sizeof *t);
 
   if (! FRAME_TERMCAP_P (f))
-    abort ();
+    emacs_abort ();
 
   t->display_info = FRAME_TERMINAL (f)->display_info.tty;
 
@@ -2811,7 +2809,7 @@ static void
 tty_free_frame_resources (struct frame *f)
 {
   if (! FRAME_TERMCAP_P (f))
-    abort ();
+    emacs_abort ();
 
   if (FRAME_FACE_CACHE (f))
     free_frame_faces (f);
@@ -2827,7 +2825,7 @@ static void
 tty_free_frame_resources (struct frame *f)
 {
   if (! FRAME_TERMCAP_P (f) && ! FRAME_MSDOS_P (f))
-    abort ();
+    emacs_abort ();
 
   if (FRAME_FACE_CACHE (f))
     free_frame_faces (f);
@@ -2932,7 +2930,10 @@ dissociate_if_controlling_tty (int fd)
       no_controlling_tty = 1;
 #else
 #ifdef TIOCNOTTY                /* Try BSD ioctls. */
-      sigblock (sigmask (SIGTTOU));
+      sigset_t blocked;
+      sigemptyset (&blocked);
+      sigaddset (&blocked, SIGTTOU);
+      pthread_sigmask (SIG_BLOCK, &blocked, 0);
       fd = emacs_open (DEV_TTY, O_RDWR, 0);
       if (fd != -1 && ioctl (fd, TIOCNOTTY, 0) != -1)
         {
@@ -2940,10 +2941,9 @@ dissociate_if_controlling_tty (int fd)
         }
       if (fd != -1)
         emacs_close (fd);
-      sigunblock (sigmask (SIGTTOU));
+      pthread_sigmask (SIG_UNBLOCK, &blocked, 0);
 #else
-      /* Unknown system. */
-      croak ();
+# error "Unknown system."
 #endif  /* ! TIOCNOTTY */
 #endif  /* ! USG */
     }
@@ -3074,9 +3074,14 @@ init_tty (const char *name, const char *terminal_type, int must_succeed)
 
   /* On some systems, tgetent tries to access the controlling
      terminal. */
-  sigblock (sigmask (SIGTTOU));
-  status = tgetent (tty->termcap_term_buffer, terminal_type);
-  sigunblock (sigmask (SIGTTOU));
+  {
+    sigset_t blocked;
+    sigemptyset (&blocked);
+    sigaddset (&blocked, SIGTTOU);
+    pthread_sigmask (SIG_BLOCK, &blocked, 0);
+    status = tgetent (tty->termcap_term_buffer, terminal_type);
+    pthread_sigmask (SIG_UNBLOCK, &blocked, 0);
+  }
 
   if (status < 0)
     {
@@ -3108,7 +3113,7 @@ use the Bourne shell command `TERM=... export TERM' (C-shell:\n\
 
 #ifndef TERMINFO
   if (strlen (tty->termcap_term_buffer) >= buffer_size)
-    abort ();
+    emacs_abort ();
   buffer_size = strlen (tty->termcap_term_buffer);
 #endif
   tty->termcap_strings_buffer = area = xmalloc (buffer_size);
@@ -3467,7 +3472,7 @@ maybe_fatal (int must_succeed, struct terminal *terminal,
     verror (str1, ap);
 
   va_end (ap);
-  abort ();
+  emacs_abort ();
 }
 
 void
@@ -3494,7 +3499,7 @@ delete_tty (struct terminal *terminal)
     return;
 
   if (terminal->type != output_termcap)
-    abort ();
+    emacs_abort ();
 
   tty = terminal->display_info.tty;
 
@@ -3508,7 +3513,7 @@ delete_tty (struct terminal *terminal)
 
       if (! p)
         /* This should not happen. */
-        abort ();
+        emacs_abort ();
 
       p->next = tty->next;
       tty->next = 0;