From c99e570a48236ba771b61af31febaef6f8b7e887 Mon Sep 17 00:00:00 2001
From: Jason Evans <jasone@canonware.com>
Date: Fri, 23 Jun 2017 12:35:17 -0700
Subject: [PATCH] Make sure LG_PAGE <= LG_HUGEPAGE.

This resolves #883.
---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure.ac b/configure.ac
index 770fff56..496631a6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1373,6 +1373,10 @@ if test "x${je_cv_lg_hugepage}" = "x" ; then
     je_cv_lg_hugepage=21
   fi
 fi
+if test "x${LG_PAGE}" != "xundefined" -a \
+        "${je_cv_lg_hugepage}" -lt "${LG_PAGE}" ; then
+  AC_MSG_ERROR([Huge page size (2^${je_cv_lg_hugepage}) must be at least page size (2^${LG_PAGE})])
+fi
 AC_DEFINE_UNQUOTED([LG_HUGEPAGE], [${je_cv_lg_hugepage}])
 
 AC_ARG_WITH([lg_page_sizes],