From df1e2a64d2503f8e108b19a46bbba8a6c5e15d4a Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Wed, 23 Aug 2023 19:03:34 -0400
Subject: [PATCH] the MESONT package depends on the MOLECULE package since the
 last upgrade

---
 cmake/CMakeLists.txt  |  1 +
 src/Depend.sh         |  1 +
 src/MESONT/Install.sh | 40 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100755 src/MESONT/Install.sh

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 0b852d5ea9..b075fc8f8d 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -387,6 +387,7 @@ pkg_depends(CG-DNA MOLECULE)
 pkg_depends(CG-DNA ASPHERE)
 pkg_depends(ELECTRODE KSPACE)
 pkg_depends(EXTRA-MOLECULE MOLECULE)
+pkg_depends(MESONT MOLECULE)
 
 # detect if we may enable OpenMP support by default
 set(BUILD_OMP_DEFAULT OFF)
diff --git a/src/Depend.sh b/src/Depend.sh
index 1701be2577..4004f12686 100755
--- a/src/Depend.sh
+++ b/src/Depend.sh
@@ -150,6 +150,7 @@ if (test $1 = "MOLECULE") then
   depend GPU
   depend KOKKOS
   depend FEP
+  depend MESONT
   depend OPENMP
   depend INTEL
 fi
diff --git a/src/MESONT/Install.sh b/src/MESONT/Install.sh
new file mode 100755
index 0000000000..6a9940f3ed
--- /dev/null
+++ b/src/MESONT/Install.sh
@@ -0,0 +1,40 @@
+# Install/unInstall package files in LAMMPS
+# mode = 0/1/2 for uninstall/install/update
+
+mode=$1
+
+# enforce using portable C locale
+LC_ALL=C
+export LC_ALL
+
+# arg1 = file, arg2 = file it depends on
+
+action () {
+  if (test $mode = 0) then
+    rm -f ../$1
+  elif (! cmp -s $1 ../$1) then
+    if (test -z "$2" || test -e ../$2) then
+      cp $1 ..
+      if (test $mode = 2) then
+        echo "  updating src/$1"
+      fi
+    fi
+  elif (test -n "$2") then
+    if (test ! -e ../$2) then
+      rm -f ../$1
+    fi
+  fi
+}
+
+# some styles in MESONT have base classes in MOLECULE
+
+if (test $1 = 1) then
+  if (test ! -e ../bond_harmonic.cpp) then
+    echo "Must install MOLECULE package with MESONT"
+    exit 1
+  fi
+fi
+
+for file in *.cpp *.h; do
+    action ${file}
+done