From a464aad037e7e6b8e0a79f8ce14a4c8fb0981d70 Mon Sep 17 00:00:00 2001
From: Erik Lindahl <erik@kth.se>
Date: Tue, 12 Dec 2017 22:51:18 +0100
Subject: [PATCH] Fix PBC error in gmx_spatial

Fix provided by Alexey Anikeenko.

Fixes #2157.

Change-Id: I2ac8a4ffac5acb0f3e432036ded3b380d720a719
---
 src/gromacs/gmxana/gmx_spatial.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/gromacs/gmxana/gmx_spatial.cpp b/src/gromacs/gmxana/gmx_spatial.cpp
index 1badcc8d64..bdcb6b2020 100644
--- a/src/gromacs/gmxana/gmx_spatial.cpp
+++ b/src/gromacs/gmxana/gmx_spatial.cpp
@@ -181,7 +181,8 @@ int gmx_spatial(int argc, char *argv[])
     get_index(atoms, ftp2fn_null(efNDX, NFILE, fnm), 1, &nidxp, &indexp, &grpnmp);
 
     /* The first time we read data is a little special */
-    natoms = read_first_frame(oenv, &status, ftp2fn(efTRX, NFILE, fnm), &fr, flags);
+    read_first_frame(oenv, &status, ftp2fn(efTRX, NFILE, fnm), &fr, flags);
+    natoms = fr.natoms;
 
     /* Memory Allocation */
     MINBIN[XX] = MAXBIN[XX] = fr.x[0][XX];
-- 
2.11.4.GIT