From dffb8e9865b7bbf58da175faa241c7e6ef7452ee Mon Sep 17 00:00:00 2001
From: eldritch horrors <pennae@lix.systems>
Date: Fri, 4 Jul 2025 13:25:47 +0200
Subject: [PATCH] libutil/runProgram2: add explicit argv0 support

Change-Id: I292aed7f25de1c193f6e2374c1f6a7ba9d272dd4
---
 lix/libutil/processes.cc | 2 +-
 lix/libutil/processes.hh | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/lix/libutil/processes.cc b/lix/libutil/processes.cc
index aa692d4c3..79bacf6b8 100644
--- a/lix/libutil/processes.cc
+++ b/lix/libutil/processes.cc
@@ -401,7 +401,7 @@ RunningProgram runProgram2(const RunOptions & options)
 #endif
 
         Strings args_(options.args);
-        args_.push_front(options.program);
+        args_.push_front(options.argv0.value_or(options.program));
 
         restoreProcessContext();
 
diff --git a/lix/libutil/processes.hh b/lix/libutil/processes.hh
index 8d9fe5c29..3293016b6 100644
--- a/lix/libutil/processes.hh
+++ b/lix/libutil/processes.hh
@@ -83,6 +83,7 @@ struct RunOptions
 
     Path program;
     bool searchPath = true;
+    std::optional<std::string> argv0;
     Strings args = {};
     std::optional<uid_t> uid = {};
     std::optional<uid_t> gid = {};