From: Benjamin Peterson <benjamin@python.org>
Date: Sun, 31 Jul 2016 06:21:50 +0000 (-0700)
Subject: all SCHED_ constants are optional (closes #27656)
X-Git-Tag: v3.6.0a4~86^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=dbaa559b7fc6b80c1f230119f609b99b5b3844f3;p=thirdparty%2FPython%2Fcpython.git

all SCHED_ constants are optional (closes #27656)
---

diff --git a/Misc/NEWS b/Misc/NEWS
index 6b2b41921fec..0a6ddf49c05d 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -34,6 +34,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #27656: Do not assume sched.h defines any SCHED_* constants.
+
 - Issue #27130: In the "zlib" module, fix handling of large buffers
   (typically 4 GiB) when compressing and decompressing.  Previously, inputs
   were limited to 4 GiB, and compression and decompression operations did not
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index ee600fc237e8..b854cafb6f74 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -12750,9 +12750,15 @@ all_ins(PyObject *m)
 #endif
 
 #ifdef HAVE_SCHED_H
+#ifdef SCHED_OTHER
     if (PyModule_AddIntMacro(m, SCHED_OTHER)) return -1;
+#endif
+#ifdef SCHED_FIFO
     if (PyModule_AddIntMacro(m, SCHED_FIFO)) return -1;
+#endif
+#ifdef SCHED_RR
     if (PyModule_AddIntMacro(m, SCHED_RR)) return -1;
+#endif
 #ifdef SCHED_SPORADIC
     if (PyModule_AddIntMacro(m, SCHED_SPORADIC) return -1;
 #endif