From 75c4ab34b11f60aafe0cbb7199b227c8fb884545 Mon Sep 17 00:00:00 2001
From: johnoel <johnoel@hawaii.edu>
Date: Mon, 12 Feb 2024 11:10:37 -1000
Subject: [PATCH] lvector type should be long long for _WIN64.

---
 src/linad99/fvar.hpp | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/linad99/fvar.hpp b/src/linad99/fvar.hpp
index dc536fd56..490a828a9 100644
--- a/src/linad99/fvar.hpp
+++ b/src/linad99/fvar.hpp
@@ -61,14 +61,23 @@ Macro definitions.
     #define AD_LONG_INT long long int
   #endif
 #elif defined(_MSC_VER)
-  #define OFF_T __int64
-  #define LSEEK _lseeki64
+  #ifdef _WIN64
+    #define OFF_T __int64
+    #define LSEEK _lseeki64
+  #else
+    #define OFF_T long
+    #define LSEEK _lseek
+  #endif
   #define READ _read
   #define WRITE _write
   #if defined(AD_LONG_INT)
     #error "Error: AD_LONG_INT should not be defined."
   #else
-    #define AD_LONG_INT long int
+    #ifdef _WIN64
+      #define AD_LONG_INT long long int
+    #else
+      #define AD_LONG_INT long int
+    #endif
   #endif
 #else
   #define OFF_T off_t