This patch provides extended file stdio support.
As it is Solaris-specific, it is not suitable for upstream.

--- Python-2.7.1/Modules/python.c.orig	Tue Jun 21 21:35:45 2011
+++ Python-2.7.1/Modules/python.c	Tue Jun 21 21:39:29 2011
@@ -6,6 +6,13 @@
 #include <floatingpoint.h>
 #endif
 
+#if defined(sun) && defined(__SVR4) && !defined(_LP64)
+#define USE_EXTENDED_FILE_STDIO 1
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <signal.h>
+#endif
+
 int
 main(int argc, char **argv)
 {
@@ -20,5 +27,18 @@
 	m = fpgetmask();
 	fpsetmask(m & ~FP_X_OFL);
 #endif
+#ifdef USE_EXTENDED_FILE_STDIO
+	/*
+	 * enable extended FILE facility on Solaris so that Python
+	 * apps can keep more than 256 file descriptors open
+	 */
+	struct rlimit rlp;
+	(void) getrlimit(RLIMIT_NOFILE, &rlp);
+	rlp.rlim_cur = rlp.rlim_max;
+	if (setrlimit(RLIMIT_NOFILE, &rlp) != -1) {
+		enable_extended_FILE_stdio(-1, 0);
+	}
+#endif
+
 	return Py_Main(argc, argv);
 }