From ee899a21ed2e43fe8856542798d5b6377307318c Mon Sep 17 00:00:00 2001
From: Leo Yuriev <leo@yuriev.ru>
Date: Tue, 5 Mar 2019 17:55:33 +0300
Subject: [PATCH] mdbx: treat pagesize == 0/INTPTR_MAX as aliases for
 MIN_PAGESIZE/MAX_PAGESIZE.

---
 src/mdbx.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mdbx.c b/src/mdbx.c
index 22beeb5c..a3342f9d 100644
--- a/src/mdbx.c
+++ b/src/mdbx.c
@@ -5723,6 +5723,11 @@ LIBMDBX_API int mdbx_env_set_geometry(MDBX_env *env, intptr_t size_lower,
     }
   }
 
+  if (pagesize == 0)
+    pagesize = MIN_PAGESIZE;
+  else if (pagesize == INTPTR_MAX)
+    pagesize = MAX_PAGESIZE;
+
   if (pagesize < (intptr_t)MIN_PAGESIZE || pagesize > (intptr_t)MAX_PAGESIZE ||
       !mdbx_is_power2(pagesize)) {
     rc = MDBX_EINVAL;