From 0686eb0219d3ef3e317f7c862da98810f456d028 Mon Sep 17 00:00:00 2001
From: Joachim Reichel <43646584+jreichel-nvidia@users.noreply.github.com>
Date: Thu, 7 Aug 2025 15:57:41 +0200
Subject: [PATCH] Fix zenity invocation for KDE.

The KDE file open dialog hangs because of the trailing space.
---
 source/MaterialXGraphEditor/FileDialog.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/source/MaterialXGraphEditor/FileDialog.cpp b/source/MaterialXGraphEditor/FileDialog.cpp
index c8966d86a0..47f6b1a6f4 100644
--- a/source/MaterialXGraphEditor/FileDialog.cpp
+++ b/source/MaterialXGraphEditor/FileDialog.cpp
@@ -199,8 +199,12 @@ mx::StringVec launchFileDialog(const std::vector<std::pair<std::string, std::str
     if (save)
         cmd += "--save ";
     cmd += "--file-filter=\"";
-    for (auto pair : filetypes)
-        cmd += "\"*." + pair.first + "\" ";
+    for (size_t i = 0, n = filetypes.size(); i < n; ++i)
+    {
+        cmd += "\"*." + filetypes[i].first + "\"";
+        if (i+1 < n)
+            cmd += " ";
+    }
     cmd += "\"";
     FILE* output = popen(cmd.c_str(), "r");
     if (output == nullptr)