From 92b71da6d2135df41802605cb5f28b7ab28b194b Mon Sep 17 00:00:00 2001
From: Jacob Barthelmeh <jacob@wolfssl.com>
Date: Thu, 26 Oct 2017 16:40:16 -0600
Subject: [PATCH] allow for adjusting static IO buffer size

---
 wolfssl/wolfcrypt/memory.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/wolfssl/wolfcrypt/memory.h b/wolfssl/wolfcrypt/memory.h
index 736183b97..f838c0b87 100644
--- a/wolfssl/wolfcrypt/memory.h
+++ b/wolfssl/wolfcrypt/memory.h
@@ -88,7 +88,9 @@ WOLFSSL_API int wolfSSL_GetAllocators(wolfSSL_Malloc_cb*,
         #define WOLFMEM_MAX_BUCKETS  9
     #endif
     #define WOLFMEM_DEF_BUCKETS  9     /* number of default memory blocks */
-    #define WOLFMEM_IO_SZ        16992 /* 16 byte aligned */
+    #ifndef WOLFMEM_IO_SZ
+        #define WOLFMEM_IO_SZ        16992 /* 16 byte aligned */
+    #endif
     #ifndef WOLFMEM_BUCKETS
         /* default size of chunks of memory to seperate into
          * having session certs enabled makes a 21k SSL struct */