Switch Appimages to net 5.

packaging/linux/AppRun.in

@@ -2,43 +2,15 @@
 
 HERE="$(dirname "$(readlink -f "${0}")")"
 
-# Stash original environment values so they can be restored
-# when switching to other mods using restore-environment
-export OPENRA_ORIG_PATH="${PATH}"
-export OPENRA_ORIG_XDG_DATA_DIRS="${XDG_DATA_DIRS}"
-export OPENRA_ORIG_DYLD_LIBRARY_PATH="${DYLD_LIBRARY_PATH}"
-export OPENRA_ORIG_LD_LIBRARY_PATH="${LD_LIBRARY_PATH}"
-export OPENRA_ORIG_MONO_PATH="${MONO_PATH}"
-export OPENRA_ORIG_MONO_CFG_DIR="${MONO_CFG_DIR}"
-export OPENRA_ORIG_MONO_CONFIG="${MONO_CONFIG}"
-
-# Override runtime paths to use bundled mono and shared libraries
-export PATH="${HERE}/usr/bin:${PATH}"
-export XDG_DATA_DIRS="${HERE}/usr/share:${XDG_DATA_DIRS}"
-export DYLD_LIBRARY_PATH="${HERE}/usr/lib:${DYLD_LIBRARY_PATH}"
-export LD_LIBRARY_PATH="${HERE}/usr/lib:${LD_LIBRARY_PATH}"
-export MONO_PATH="${HERE}/usr/lib/mono/4.5"
-export MONO_CFG_DIR="${HERE}/etc"
-export MONO_CONFIG="${HERE}/etc/mono/config"
-
-# Update/create the mono certificate store to enable https web queries
-if [ -f "/etc/pki/tls/certs/ca-bundle.crt" ]; then
-	mono "${HERE}/usr/lib/mono/4.5/cert-sync.exe" --quiet --user /etc/pki/tls/certs/ca-bundle.crt
-elif [ -f "/etc/ssl/certs/ca-certificates.crt" ]; then
-	mono "${HERE}/usr/lib/mono/4.5/cert-sync.exe" --quiet --user /etc/ssl/certs/ca-certificates.crt
-else
-	echo "WARNING: Unable to sync system certificate store - https requests will fail"
-fi
-
 # Run the game or server
 if [ -n "$1" ] && [ "$1" = "--server" ]; then
 	# Drop the --server argument
 	shift
-	exec "openra-{MODID}-server" "$@"
+	"${HERE}/usr/bin/openra-{MODID}-server" "$@"
 elif [ -n "$1" ] && [ "$1" = "--utility" ]; then
 	# Drop the --utility argument
 	shift
-	exec "openra-{MODID}-utility" "$@"
+	"${HERE}/usr/bin/openra-{MODID}-utility" "$@"
 else
-	exec "openra-{MODID}" "$@"
+	"${HERE}/usr/bin/openra-{MODID}" "$@"
 fi