syntax-check: Add versioning information

Our copy of syntax-check has diverged quite a bit from the
gnulib original, but a lot of the core logic has remained
identical and it would be nice if we could periodically pull
improvements.

To make this manageable, record the gnulib commit our copy is
derived from: this way, the person updating the file will know
the range of gnulib commits that they have to consider.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

diff --git a/build-aux/syntax-check.mk b/build-aux/syntax-check.mk
index 09e7a014a3f545dc379d441535fb5d553d21bc79..3ae5abd11a23821d22c4ae99fa8bee66be023ff9 100644 (file)
--- a/build-aux/syntax-check.mk
+++ b/build-aux/syntax-check.mk
@@ -2,6 +2,10 @@
 # Rules for running syntax-check, derived from gnulib's
 # maint.mk
 #
+# Specifically, all shared code should match gnulib commit
+#
+#   1f6fb368c04919243e2c70f2aa514a5f88e95309 (2019-08-19)
+#
 # Copyright (C) 2008-2019 Red Hat, Inc.
 # Copyright (C) 2003-2019 Free Software Foundation, Inc.