From bd0baf23383951182b10261b076cf6268152a68b Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Mon, 4 Jul 2011 14:29:59 +0200
Subject: [PATCH] Check that PR_SET_NAME is defined.

Avoids breaking the build with older (pre-2006) linux kernels.
Raises a JS exception if the script tries to assign to `process.title`.

Fixes #840.
---
 src/platform_linux.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/platform_linux.cc b/src/platform_linux.cc
index 54937b487ad..827b8d4ea34 100644
--- a/src/platform_linux.cc
+++ b/src/platform_linux.cc
@@ -64,9 +64,15 @@ char** Platform::SetupArgs(int argc, char *argv[]) {
 
 
 void Platform::SetProcessTitle(char *title) {
+#ifdef PR_SET_NAME
   if (process_title) free(process_title);
   process_title = strdup(title);
   prctl(PR_SET_NAME, process_title);
+#else
+  Local<Value> ex = Exception::Error(
+    String::New("'process.title' is not writable on your system, sorry."));
+  ThrowException(ex); // Safe, this method is only called from the main thread.
+#endif
 }