https://github.com/libsdl-org/autoconf/commit/c8b84ee327c0e5910ebe0d6ca88041174ec42c66
From c8b84ee327c0e5910ebe0d6ca88041174ec42c66 Mon Sep 17 00:00:00 2001
From: Eric Blake <[EMAIL REDACTED]>
Date: Mon, 10 May 2021 15:45:24 -0500
Subject: [PATCH] maint: ensure autoconf-latest.* links stay up-to-date
* cfg.mk (GNUPLOADFLAGS): New.
https://lists.gnu.org/archive/html/autoconf/2021-05/msg00006.html
---
cfg.mk | 3 +++
1 file changed, 3 insertions(+)
diff --git a/cfg.mk b/cfg.mk
index 0d4ec728..6a89e489 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -86,6 +86,9 @@ update-release-year:
# Prevent incorrect NEWS edits.
old_NEWS_hash = 981169afdd2c97642125938f80a26b7f
+# Update autoconf-latest.tar.* symlinks during 'make stable/beta'.
+GNUPLOADFLAGS = --symlink-regex
+
exclude_file_name_regexp--sc_prohibit_undesirable_word_seq = \
^(maint\.mk|build-aux/texinfo\.tex)$$
exclude_file_name_regexp--sc_prohibit_test_minus_ao = \