diff -ru a/include/stdio.h b/include/stdio.h
--- a/include/stdio.h	2000-08-04 10:24:39.000000000 +1000
+++ b/include/stdio.h	2005-06-18 14:26:35.000000000 +1000
@@ -34,6 +34,10 @@
 #include <bsd-games.h>
 #include_next <stdio.h>

+__BEGIN_DECLS
+
 #ifndef HAVE_fgetln
 extern char *fgetln(FILE *stream, size_t *len);
 #endif
+
+__END_DECLS
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<tr><td><span title='2022-05-31 14:53:46 -0400'>2022-05-31</span></td><td><a href='/guix/commit/gnu/packages/ocr.scm?id=2d51db54bd9abafd7777012e94e8f4c21dff8aa1'>gnu: Remove python2-zinnia.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
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<tr><td><span title='2022-02-07 18:13:36 +0100'>2022-02-07</span></td><td><a href='/guix/commit/gnu/packages/ocr.scm?id=b73d8f07b3d18862984cc5ee42c44d0fb1399fc3'>gnu: gimagereader: Remove input labels.</a><span class='msg-avail'>...</span></td><td>Nicolas Goaziou</td></tr>
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