Set stacksize to 128K from 64K. Adapted from http://zwiki.org/IssueNo0226.

PR:		47943
Submitted by:	Alex Rodioukov <simuran@shaw.ca>

lang/python21/files/patch-Python-thread_pthread.h-stacksize

@@ -0,0 +1,32 @@
+--- Python/thread_pthread.h.orig	Thu Jan 10 06:12:20 2002
++++ Python/thread_pthread.h	Thu Feb  6 11:27:49 2003
+@@ -128,14 +128,14 @@
+ {
+ 	pthread_t th;
+ 	int success;
+-#ifdef PTHREAD_SYSTEM_SCHED_SUPPORTED
+ 	pthread_attr_t attrs;
+-#endif
++
+         dprintf(("PyThread_start_new_thread called\n"));
+ 	if (!initialized)
+ 		PyThread_init_thread();
+-#ifdef PTHREAD_SYSTEM_SCHED_SUPPORTED
+ 	pthread_attr_init(&attrs);
++	pthread_attr_setstacksize(&attrs, (1 << 17));
++#ifdef PTHREAD_SYSTEM_SCHED_SUPPORTED
+ 	pthread_attr_setscope(&attrs, PTHREAD_SCOPE_SYSTEM);
+ #endif
+ 
+@@ -153,11 +153,7 @@
+ 				 func,
+ 				 arg
+ #elif defined(PY_PTHREAD_STD)
+-#ifdef PTHREAD_SYSTEM_SCHED_SUPPORTED
+ 				 &attrs,
+-#else
+-				 (pthread_attr_t*)NULL,
+-#endif
+ 				 (void* (*)(void *))func,
+ 				 (void *)arg
+ #endif