From 45c4a12daab3a24a94332c4756e0b82368bdddd5 Mon Sep 17 00:00:00 2001
From: Dave Davenport <qball@gmpclient.org>
Date: Wed, 5 Jul 2023 20:29:09 +0200
Subject: [PATCH] [Lexer] Print some more debug info on error.

issue: #1865
---
 lexer/theme-lexer.l | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lexer/theme-lexer.l b/lexer/theme-lexer.l
index a7174226..2d9117dd 100644
--- a/lexer/theme-lexer.l
+++ b/lexer/theme-lexer.l
@@ -123,6 +123,7 @@ static double rofi_theme_parse_convert_hex ( char high, char low)
                 { \
                     if ( errno != EINTR ) \
                     { \
+                        fprintf(stderr, "Failed to read input from file: %s\n", strerror(errno)); \
                         YY_FATAL_ERROR( "input in flex scanner failed" ); \
                         break; \
                     } \