From 6c83ef3f40b87bdbbec0603db4f1625e5ce91151 Mon Sep 17 00:00:00 2001
From: vxtls <187420201+vxtls@users.noreply.github.com>
Date: Wed, 18 Mar 2026 18:41:32 -0400
Subject: [PATCH] fix(tar-1.30): use execvp(sh, argv) in system.c for
 /bin/sh-less Guix environments

---
 steps-guix/tar-1.30/patches/use-execvp-sh.patch | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 steps-guix/tar-1.30/patches/use-execvp-sh.patch

diff --git a/steps-guix/tar-1.30/patches/use-execvp-sh.patch b/steps-guix/tar-1.30/patches/use-execvp-sh.patch
new file mode 100644
index 00000000..066d880a
--- /dev/null
+++ b/steps-guix/tar-1.30/patches/use-execvp-sh.patch
@@ -0,0 +1,15 @@
+SPDX-License-Identifier: GPL-3.0-or-later
+
+Use execvp("sh", ...) in xexec so tar works when /bin/sh is absent.
+
+--- tar-1.30/src/system.c
++++ tar-1.30/src/system.c
+@@ -34,7 +34,7 @@
+   argv[2] = (char *) cmd;
+   argv[3] = NULL;
+ 
+-  execv ("/bin/sh", argv);
++  execvp ("sh", argv);
+   exec_fatal (cmd);
+ }
+