--- php/ext/zlib/zlib.c.orig	Wed Jul  2 12:30:43 2003
+++ php/ext/zlib/zlib.c	Wed Jul  2 13:23:07 2003
@@ -1010,6 +1010,8 @@
 		/* return the original string */
 		*return_value = **zv_string;
 		zval_copy_ctor(return_value);
+	} else {
+		SG(sapi_headers).send_default_content_type = 0;
 	}
 }
 /* }}} */
@@ -1055,6 +1055,11 @@
 	php_ob_set_internal_handler(php_gzip_output_handler, (uint)buffer_size, "zlib output compression", 0 TSRMLS_CC);
 	if (ZLIBG(output_handler) && strlen(ZLIBG(output_handler))) {
 		php_start_ob_buffer_named(ZLIBG(output_handler), 0, 1 TSRMLS_CC);
+		if (sapi_add_header("Content-Encoding: gzip", sizeof("Content-Encoding: gzip") - 1, 1)!=FAILURE) {
+			if (sapi_add_header("Vary: Accept-Encoding", sizeof("Vary: Accept-Encoding") - 1, 1)==FAILURE) {
+				SG(sapi_headers).send_default_content_type = 0;
+			}
+		}
 	}
 	return SUCCESS;
 }