From e456856d696b58b0a790838d15309c933656fddf Mon Sep 17 00:00:00 2001
From: GPSBabel <12013583+GPSBabelDeveloper@users.noreply.github.com>
Date: Wed, 5 Apr 2023 07:17:16 -0500
Subject: [PATCH] Disallow 'fields' when writing unicsv (#1059)

This closes https://github.com/GPSBabel/gpsbabel/issues/1042
---
 unicsv.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/unicsv.cc b/unicsv.cc
index d96c248f3..3067e54f1 100644
--- a/unicsv.cc
+++ b/unicsv.cc
@@ -1705,6 +1705,10 @@ UnicsvFormat::unicsv_waypt_disp_cb(const Waypoint* wpt)
 void
 UnicsvFormat::wr_init(const QString& fname)
 {
+  if (opt_fields) {
+    fatal(FatalMsg() << MYNAME <<
+          ": option 'fields' is not supported on output");
+  }
   fout = new gpsbabel::TextStream;
   fout->open(fname, QIODevice::WriteOnly, MYNAME, opt_codec);
   fout->setRealNumberNotation(QTextStream::FixedNotation);
-- 
2.30.2