* doc/posix-functions/ftell.texi: Mention the macOS bug.
+2021-03-21 Bruno Haible <bruno@clisp.org>
+
+ ftell: Document bug in macOS >= 10.15.
+ * doc/posix-functions/ftell.texi: Mention the macOS bug.
+
2021-03-20 Bruno Haible <bruno@clisp.org>
ftello: Work around bug in macOS >= 10.15.
This function produces incorrect results after @code{putc} that followed a
@code{getc} call that reached EOF on some platforms:
Solaris 11 2010-11.
+@item
+This function, when invoked after @code{ungetc}, throws away the @code{ungetc}
+buffer, changes the stream's file position, and returns the wrong position on
+some platforms:
+macOS 10.15 and newer.
@end itemize
Portability problems not fixed by Gnulib: