diff --git a/ChangeLog b/ChangeLog
index 3a6f2644..c31425d0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2020-01-01  Simon Josefsson  <simon@josefsson.org>
+
+	* cfg.mk: Silence 'make syntax-check'.
+
 2020-01-01  Simon Josefsson  <simon@josefsson.org>
 
 	* bootstrap: Updated from gnulib.
diff --git a/cfg.mk b/cfg.mk
index c335c0dd..35ad9ddc 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -47,11 +47,15 @@ local-checks-to-skip = \
 	sc_prohibit_strcmp \
 	sc_unmarked_diagnostics \
 	sc_bindtextdomain \
-	sc_assignment_in_if
+	sc_assignment_in_if \
+	sc_prohibit_gnu_make_extensions
 
 exclude_file_name_regexp--sc_prohibit_have_config_h = \
 	^libinetutils/libinetutils.h$$
 
+exclude_file_name_regexp--sc_obsolete_symbols = \
+	^tests/identify.c$$
+
 htmldir = ../www-$(PACKAGE)
 
 manual_title = GNU network utilities