From 3b2670b3ddff63a61b276752384cf22dc7fded97 Mon Sep 17 00:00:00 2001
From: Ward Fisher <wfisher@unidata.ucar.edu>
Date: Wed, 19 Dec 2012 21:22:00 +0000
Subject: [PATCH]

---
 CMakeLists.txt | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0e0668d50..10aa25c08 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,7 +65,6 @@ IF (NOT CMAKE_BUILD_TYPE)
 	SET (CMAKE_BUILD_TYPE DEBUG CACHE STRING "Choose the type of build, options are: None, Debug, Release."
 		FORCE)
 ENDIF()
-		
 
 #####
 # Some utility macros/scripts.
@@ -403,6 +402,14 @@ INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/include)
 INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/oc2)
 INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/libsrc)
 SET(CMAKE_REQUIRED_INCLUDES ${CMAKE_SOURCE_DIR}/libsrc)
+#
+# Large File Support?
+check_type_size(off64_t OFF64_T)
+if(HAVE_OFF64_T)
+  set(_FILE_OFFSET_BITS 64)
+endif()
+
+
 #
 # Library include checks
 CHECK_INCLUDE_FILE("math.h"      HAVE_MATH_H)