build: fix "make syntax-check"

* cfg.mk (_gl_TS_unmarked_extern_vars): Add good_match.

diff --git a/cfg.mk b/cfg.mk
index 39713d15016da9c5aced0fa2b61ee6b02a6ce2d9..0209d6365f532b56021bffdf12e94734046c8ed2 100644 (file)
--- a/cfg.mk
+++ b/cfg.mk
@@ -81,4 +81,4 @@ export _gl_TS_dir = .
 # Tell the tight_scope rule that these variables are deliberately "extern".
 export _gl_TS_unmarked_extern_vars = \
   block_start d_buf inbuf outbuf prev read_buf strstart window \
-  match_start prev_length max_chain_length
+  match_start prev_length max_chain_length good_match