nixpkgs/pkgs/tools/networking/mosh/utempter_path.patch

diff -ur mosh-1.3.2/src/frontend/mosh-server.cc mosh-1.3.2.patched/src/frontend/mosh-server.cc
--- mosh-1.3.2/src/frontend/mosh-server.cc	2017-07-22 23:14:53.000000000 +0200
+++ mosh-1.3.2.patched/src/frontend/mosh-server.cc	2018-06-06 10:45:50.725352804 +0200
@@ -351,6 +351,10 @@
     }
   }
 
+#ifdef HAVE_UTEMPTER
+    utempter_set_helper( "utempter" );
+#endif
+
   try {
     return run_server( desired_ip, desired_port, command_path, command_argv, colors, verbose, with_motd );
   } catch ( const Network::NetworkException &e ) {
nixos/programs.mosh: refactor Adds programs.mosh.withUtempter (default: true). The option enables -with-utempter for mosh, allowing it to write to /var/run/utmp and thus making connected sessions appear in the output of `who -a`. For that, a guid-wrapper is required. Also, the path to the `utempter` was hardcoded in the resulting binary until now (so it could never been found), thus, libutempter was patched accordingly to point to /run/wrappers/bin/utempter which at least works when the wrapper is configured. 2018-06-01 23:29:33 +01:00			`diff -ur mosh-1.3.2/src/frontend/mosh-server.cc mosh-1.3.2.patched/src/frontend/mosh-server.cc`
			`--- mosh-1.3.2/src/frontend/mosh-server.cc 2017-07-22 23:14:53.000000000 +0200`
			`+++ mosh-1.3.2.patched/src/frontend/mosh-server.cc 2018-06-06 10:45:50.725352804 +0200`
			`@@ -351,6 +351,10 @@`
			`}`
			`}`

			`+#ifdef HAVE_UTEMPTER`
			`+ utempter_set_helper( "utempter" );`
			`+#endif`
			`+`
			`try {`
			`return run_server( desired_ip, desired_port, command_path, command_argv, colors, verbose, with_motd );`
			`} catch ( const Network::NetworkException &e ) {`