--- grass-6.4.1/raster/r.out.png/r.out.png.c	
+++ grass-6.4.1/raster/r.out.png/r.out.png.c	
@@ -261,9 +261,11 @@ int main(int argc, char *argv[])
     png_info_init(info_ptr);
 #endif
     png_init_io(png_ptr, fp);
+#if PNG_LIBPNG_VER < 10500 /* 1.5.0 */
     info_ptr->width = win.cols;
     info_ptr->height = win.rows;
     info_ptr->bit_depth = depth;
+#endif
 
     /* explicit filter-type (or none) required */
     if ((filter >= 0) && (filter <= 4)) {
@@ -302,10 +304,18 @@ int main(int argc, char *argv[])
 	/*if(!gscale->answer){ *//* 24BIT COLOR IMAGE */
 
 	if (TRUE) {
+	    int color_type;
 	    if (do_alpha)
-		info_ptr->color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+		color_type = PNG_COLOR_TYPE_RGB_ALPHA;
 	    else
-		info_ptr->color_type = PNG_COLOR_TYPE_RGB;
+		color_type = PNG_COLOR_TYPE_RGB;
+#if PNG_LIBPNG_VER < 10500 /* 1.5.0 */
+	    info_ptr->color_type = color_type;
+#else
+            png_set_IHDR(png_ptr, info_ptr, win.cols, win.rows, depth,
+			 color_type, PNG_INTERLACE_NONE,
+			 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
+#endif
 
 	    /* write the png-info struct */
 	    png_write_info(png_ptr, info_ptr);