bug#56222: Emacs 28.1 distribution tarball does not unpack on Solaris 10

[Paul Eggert <eggert@cs.ucla.edu>]

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On 6/26/22 13:37, Eli Zaretskii wrote:
> I'm reluctant to make changes in the build scripts on the release
> branch at this point.

OK, I installed a couple of notes in etc/PROBLEMS instead; see attached. 
One is for the problems with "make clean" and "make check". The other is 
for a build failure I noticed while doing all this.

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From ade34cf8217e40ea27cde7c12ad6071cee283bb1 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sun, 26 Jun 2022 17:23:20 -0500
Subject: [PATCH 1/2] Mention further crashes on Solaris 10

---
 etc/PROBLEMS | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 8a260c3177..c2164094d7 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -2400,6 +2400,11 @@ Definitions" to make them defined.
 We list bugs in current versions here.  See also the section on legacy
 systems.
 
+*** On Solaris 10 sparc, Emacs crashes during the build while saving state.
+This was observed for Emacs 28.1 on Solaris 10 32-bit sparc, with
+Oracle Developer Studio 12.6 (Sun C 5.15).  The failure was intermittent,
+and running GNU Make a second time would typically finish the build.
+
 *** On Solaris 10, Emacs crashes during the build process.
 (This applies only with './configure --with-unexec=yes', which is rare.)
 This was reported for Emacs 25.2 on i386-pc-solaris2.10 with Sun
-- 
2.36.1


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From c66b90a534ed08762d57f8f78224dbd6dd6a1b68 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sun, 26 Jun 2022 17:36:22 -0500
Subject: [PATCH 2/2] Mention Solaris 10 'make clean' and 'make check'

---
 etc/PROBLEMS | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index c2164094d7..f935b9c930 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -2400,6 +2400,12 @@ Definitions" to make them defined.
 We list bugs in current versions here.  See also the section on legacy
 systems.
 
+*** On Solaris 10, 'make clean' and 'make check' do not work.
+The Emacs build procedure uses ’find ... -path ...', which Solaris 10
+'find' does not support.  You can work around the problem by
+installing GNU 'find' in your PATH.  This problem should be fixed in
+Emacs 29.
+
 *** On Solaris 10 sparc, Emacs crashes during the build while saving state.
 This was observed for Emacs 28.1 on Solaris 10 32-bit sparc, with
 Oracle Developer Studio 12.6 (Sun C 5.15).  The failure was intermittent,
-- 
2.36.1