From 5461f1274914602e4373bd506749b74247f04b04 Mon Sep 17 00:00:00 2001
From: Matthew Thompson <matthew.thompson@nasa.gov>
Date: Mon, 23 Jun 2025 11:46:32 -0400
Subject: [PATCH] v11: Make sure GEOSgcm.x exists for copy

---
 gcm_run.j | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/gcm_run.j b/gcm_run.j
index 85bfdb0c..54a128e1 100755
--- a/gcm_run.j
+++ b/gcm_run.j
@@ -416,9 +416,14 @@ chmod +x linkbcs
 @SINGULARITY_BUILD    setenv GEOSEXE $GEOSBIN/GEOSgcm.x
 @SINGULARITY_BUILD endif
 
-@NATIVE_BUILD echo "Copying $EXPDIR/GEOSgcm.x to $SCRDIR"
-@NATIVE_BUILD echo ""
-@NATIVE_BUILD /bin/cp $EXPDIR/GEOSgcm.x $SCRDIR/GEOSgcm.x
+@NATIVE_BUILD if (-e $EXPDIR/GEOSgcm.x) then
+@NATIVE_BUILD    echo "Copying $EXPDIR/GEOSgcm.x to $SCRDIR"
+@NATIVE_BUILD    echo ""
+@NATIVE_BUILD    /bin/cp $EXPDIR/GEOSgcm.x $SCRDIR/GEOSgcm.x
+@NATIVE_BUILD else
+@NATIVE_BUILD    echo "$EXPDIR/GEOSgcm.x not found. Please link or copy the executable to the experiment directory."
+@NATIVE_BUILD    exit 1
+@NATIVE_BUILD endif
 @NATIVE_BUILD setenv GEOSEXE $SCRDIR/GEOSgcm.x
 
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