From ea962375255190b5e641783ff193cff06ff616c6 Mon Sep 17 00:00:00 2001
From: Albrecht Schlosser <albrechts.fltk@online.de>
Date: Mon, 13 May 2024 19:12:24 +0200
Subject: Update bundled libpng from 1.6.42 to 1.6.43

---
 png/pngread.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'png/pngread.c')

diff --git a/png/pngread.c b/png/pngread.c
index 008a41856..07a39df6e 100644
--- a/png/pngread.c
+++ b/png/pngread.c
@@ -568,7 +568,11 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
 #endif
 
 #ifdef PNG_READ_TRANSFORMS_SUPPORTED
-   if (png_ptr->transformations || png_ptr->num_palette_max >= 0)
+   if (png_ptr->transformations
+#     ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
+         || png_ptr->num_palette_max >= 0
+#     endif
+      )
       png_do_read_transformations(png_ptr, &row_info);
 #endif
 
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