>From db8f1c319d772c5b13df51894f279c3a7276416e Mon Sep 17 00:00:00 2001
From: "A. Gordon" <address@hidden>
Date: Wed, 29 Aug 2012 16:42:31 -0400
Subject: [PATCH] sort: accept buffer size from environment variable.

---
 src/sort.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/src/sort.c b/src/sort.c
index 9dbfee1..1505a6d 100644
--- a/src/sort.c
+++ b/src/sort.c
@@ -4648,6 +4648,13 @@ main (int argc, char **argv)
       files = &minus;
     }
 
+  if (sort_size == 0)
+    {
+      char const *buffer_size = getenv ("SORT_BUFFER_SIZE");
+      if (buffer_size)
+        specify_sort_size(-1,'S',buffer_size);
+    }
+
   /* Need to re-check that we meet the minimum requirement for memory
      usage with the final value for NMERGE. */
   if (0 < sort_size)
-- 
1.7.9.1