Fix for broken png_check_sig in libpng 1.6.41 (#332)

See pnggroup/libpng#534 The bug report says that `png_check_sig` was deprecated many years ago.
schrodinger · Jan 31, 2024 · 92d39a1 · 92d39a1
1 parent dac0cb0
commit 92d39a1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/layer0/MyPNG.cpp b/layer0/MyPNG.cpp
@@ -407,7 +407,7 @@ std::unique_ptr<pymol::Image> MyPNGRead(const char *file_name)
   }
 
   if(ok) {
-    ret = png_check_sig(buf, 8);
+    ret = !png_sig_cmp(buf, 0, 8);
     if(!ret)
       ok = false;
   }