From be881936f3a81e6d1a167292a997f6e18036c768 Mon Sep 17 00:00:00 2001
From: Ben Lubar <ben.lubar@gmail.com>
Date: Sun, 9 Feb 2020 18:01:24 -0600
Subject: [PATCH] add -x (--exec) flag to run DFHack via the exec builtin

this means the process run by ./dfhack will be Dwarf Fortress itself rather than the wrapper script, but it also means that no cleanup actions can occur.
---
 package/linux/dfhack | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/package/linux/dfhack b/package/linux/dfhack
index 1bd3e8d92..b7dcdc384 100755
--- a/package/linux/dfhack
+++ b/package/linux/dfhack
@@ -136,6 +136,10 @@ case "$1" in
     strace -f setarch "$setarch_arch" -R env LD_PRELOAD="$PRELOAD_LIB" ./libs/Dwarf_Fortress "$@" 2> strace.log
     ret=$?
     ;;
+  -x || --exec)
+    exec setarch "$setarch_arch" -R env LD_PRELOAD="$PRELOAD_LIB" ./libs/Dwarf_Fortress "$@"
+    # script does not resume
+    ;;
   *)
     setarch "$setarch_arch" -R env LD_PRELOAD="$PRELOAD_LIB" ./libs/Dwarf_Fortress "$@"
     ret=$?