From 87a51165f321f0f4853ed5d6f76108e0073c12ba Mon Sep 17 00:00:00 2001
From: Lukas Matena <lukasmatena@seznam.cz>
Date: Tue, 30 Aug 2022 10:50:19 +0200
Subject: [PATCH] Fix of #8766: PP scripts not working on UNIX when $SHELL is
 undefined: thanks @jfbauer432 for pointing the problem out.

---
 src/libslic3r/GCode/PostProcessor.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libslic3r/GCode/PostProcessor.cpp b/src/libslic3r/GCode/PostProcessor.cpp
index ced74e3ebd..de1807dbb8 100644
--- a/src/libslic3r/GCode/PostProcessor.cpp
+++ b/src/libslic3r/GCode/PostProcessor.cpp
@@ -153,7 +153,7 @@ static int run_script(const std::string &script, const std::string &gcode, std::
 {
     // Try to obtain user's default shell
     const char *shell = ::getenv("SHELL");
-    if (shell == nullptr) { shell = "sh"; }
+    if (shell == nullptr) { shell = "/bin/sh"; }
 
     // Quote and escape the gcode path argument
     std::string command { script };