From 2e6a4eb69a80d57770b462af55f0c3c722c219d7 Mon Sep 17 00:00:00 2001
From: Albrecht Schlosser <albrechts.fltk@online.de>
Date: Sat, 15 Dec 2018 13:27:39 +0100
Subject: Fix clang-tidy unused variable warning (issue #5, part 3).

https://github.com/fltk/fltk/issues/5
---
 src/drivers/X11/Fl_X11_Screen_Driver.cxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/drivers')

diff --git a/src/drivers/X11/Fl_X11_Screen_Driver.cxx b/src/drivers/X11/Fl_X11_Screen_Driver.cxx
index d305e81ee..b21079ab6 100644
--- a/src/drivers/X11/Fl_X11_Screen_Driver.cxx
+++ b/src/drivers/X11/Fl_X11_Screen_Driver.cxx
@@ -1239,9 +1239,9 @@ static bool use_monitors_xml(float &factor) {
   FILE *in = fopen(path, "r");
   if (!in) return false;
   p = fgets(line, sizeof(line), in);
-  if (strstr(line, "<monitors version=\"2\">")) {
+  if (p && strstr(line, "<monitors version=\"2\">")) {
     while (fgets(line, sizeof(line), in)) {
-      if( (p = strstr(line, "<scale>")) && strstr(p, "</scale>") ) {
+      if ( (p = strstr(line, "<scale>")) && strstr(p, "</scale>") ) {
         p += 7;
         sscanf(p, "%f", &factor);
         if (factor == 2) { found = true; break; }
-- 
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