On February 20, 2021 8:11:39 PM PST, Dave Chinner [off-list ref] wrote:

On Sat, Feb 20, 2021 at 01:16:08PM +0100, Bastian Germann wrote:

quoted

This is a change introduced in 5.10.0-2ubuntu2 with the changelog:

quoted

xfsprogs upstream has regressed config.guess, so use
dh_update_autotools_config.

What regression?

The xfsprogs build generates config.guess with the libtool
infrastructure installed on the build machine. So I'm not sure
how/what we've regressed here, because AFAIK we haven't changed
anything here recently...

This upstream release ended up with an older version of config.guess in the tarball.  Specifically, it was too old to recognize RISC-V as an architecture.

quoted

Reported-by: Steve Langasek <redacted>
Signed-off-by: Bastian Germann <redacted>
---
 debian/changelog | 3 +++
 debian/rules     | 1 +
 2 files changed, 4 insertions(+)

diff --git a/debian/changelog b/debian/changelog
index c77f04ab..6cc9926b 100644
--- a/debian/changelog
+++ b/debian/changelog

@@ -4,6 +4,9 @@ xfsprogs (5.11.0-rc0-1) experimental; urgency=medium
   * Drop trying to create upstream distribution
   * Enable CET on amd64
 
+  [ Steve Langasek ]
+  * Regenerate config.guess using debhelper
+
  -- Bastian Germann <bastiangermann@fishpost.de>  Sat, 20 Feb 2021

11:57:31 +0100

quoted

 
 xfsprogs (5.10.0-3) unstable; urgency=medium

diff --git a/debian/rules b/debian/rules
index dd093f2c..1913ccb6 100755
--- a/debian/rules
+++ b/debian/rules

@@ -49,6 +49,7 @@ config: .census
 	@echo "== dpkg-buildpackage: configure" 1>&2
 	$(checkdir)
 	AUTOHEADER=/bin/true dh_autoreconf
+	dh_update_autotools_config
 	$(options) $(MAKE) $(PMAKEFLAGS) include/platform_defs.h

Why would running at tool that does a search-n-replace of built
config.guess files do anything when run before the build runs
libtoolize to copy in the config.guess file it uses? I'm a bit
confused by this...

Autoreconf was not copying in a newer version of config.guess from the system, because of the specific subset of autotools used by this project.

-- 
Steve Langasek