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diff --git a/ChangeLog b/ChangeLog
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+2023-05-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+	stdio: use _GL_ATTRIBUTE_MALLOC
+	* lib/stdio.in.h (fdopen, fopen, popen, tmpfile): Declare with
+	_GL_ATTRIBUTE_MALLOC, for consistency with glibc, and so that
+	building the fopen module with ‘gcc -O2 -Wsuggest-attribute=malloc
+	-Wsystem-headers -Werror’ does not fail with “stdio.h: In function
+	‘rpl_fopen’: stdio.h:970:1: error: function might be candidate for
+	attribute ‘malloc’ [-Werror=suggest-attribute=malloc]”, a problem
+	I noticed on both Fedora 38 and Ubuntu 23.04.
+
 2023-05-12  Bruno Haible  <bruno@clisp.org>
 
 	sigsegv: Add tentative support for Hurd/x86_64.