diff options
Diffstat (limited to 'pngset.c')
| -rw-r--r-- | pngset.c | 14 |
1 files changed, 8 insertions, 6 deletions
@@ -662,18 +662,20 @@ png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, if (png_ptr == NULL || info_ptr == NULL || num_text == 0) return(0); -#ifdef PNG_iTXt_NOT_PREVIOUSLY_SUPPORTED /* If an earlier version of the library was used to build the * application, it might be using a png_textp structure that - * does not contain the lang or lang_key elements. If you build + * does not contain the lang or lang_key elements. Even if you build * this library with PNG_iTXt_SUPPORTED explicitly defined, - * then we assume that your older library was also built with - * PNG_iTXt_SUPPORTED defined and the complete png_textp structure - * has existed all along and it's safe to access them. See pngconf.h. + * and your older library was also built with PNG_iTXt_SUPPORTED + * defined, the complete png_textp structure probably has not existed + * all along and it's not safe to access them, due to a bug in + * pngconf.h from version 1.2.9 to 1.2.40. + * + * To do: accept mismatched libraries when both are version 1.2.41 + * or later. */ if (png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH) caller_no_itxt = 1; -#endif /* Make sure we have enough space in the "text" array in info_struct * to hold all of the incoming text_ptr objects. |