From 48ce4897f8f8d91d948ecd1241ffab002df2be9e Mon Sep 17 00:00:00 2001
From: Michael Osipov <1983-01-06@gmx.net>
Date: Thu, 23 Aug 2018 15:27:19 +0200
Subject: bpo-34412: Make signal.strsignal() work on HP-UX (GH-8786)

Introduce a configure check for strsignal(3) which defines HAVE_STRSIGNAL for
signalmodule.c. Add some common signals on HP-UX. This change applies for
Windows and HP-UX.
---
 Modules/signalmodule.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

(limited to 'Modules/signalmodule.c')

diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c
index 9de5c2ed18..d120948582 100644
--- a/Modules/signalmodule.c
+++ b/Modules/signalmodule.c
@@ -530,9 +530,27 @@ signal_strsignal_impl(PyObject *module, int signalnum)
         return NULL;
     }
 
-#ifdef MS_WINDOWS
-    /* Custom redefinition of POSIX signals allowed on Windows */
+#ifndef HAVE_STRSIGNAL
     switch (signalnum) {
+        /* Though being a UNIX, HP-UX does not provide strsignal(3). */
+#ifndef MS_WINDOWS
+        case SIGHUP:
+            res = "Hangup";
+            break;
+        case SIGALRM:
+            res = "Alarm clock";
+            break;
+        case SIGPIPE:
+            res = "Broken pipe";
+            break;
+        case SIGQUIT:
+            res = "Quit";
+            break;
+        case SIGCHLD:
+            res = "Child exited";
+            break;
+#endif
+        /* Custom redefinition of POSIX signals allowed on Windows. */
         case SIGINT:
             res = "Interrupt";
             break;
-- 
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