http://tuxpaint.cvs.sourceforge.net/viewvc/tuxpaint/tuxpaint/src/tuxpaint.c?r1=1.828&r2=1.829 No longer directly accessing PNG structure members directly, now using png_set_IHDR(). (Patch from SF.net Bug #3386433) --- src/tuxpaint.c 2011/07/29 21:27:39 1.828 +++ src/tuxpaint.c 2011/08/08 17:59:12 1.829 @@ -13425,12 +13425,7 @@ { png_init_io(png_ptr, fi); - info_ptr->width = surf->w; - info_ptr->height = surf->h; - info_ptr->bit_depth = 8; - info_ptr->color_type = PNG_COLOR_TYPE_RGB; - info_ptr->interlace_type = 1; - info_ptr->valid = 0; /* will be updated by various png_set_FOO() functions */ + png_set_IHDR(png_ptr, info_ptr, surf->w, surf->h, 8, PNG_COLOR_TYPE_RGB, 1, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr, PNG_sRGB_INTENT_PERCEPTUAL);