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view m4/fseek.m4 @ 12202:a0f033ee41af
fseek: avoid compilation failure when fflush is replaced
./gnulib-tool --import fseek fwritable failed on Debian, due
to broken fflush() pulling in rpl_fseeko that mistakenly
overwrote fseek() as function-like macro.
* m4/fseek.m4 (gl_REPLACE_FSEEK): New macro.
* m4/fseeko.m4 (gl_REPLACE_FSEEKO): Also replace fseek, if fseek
module is in use.
* lib/stdio.in.h (GNULIB_FSEEKO): Only poison fseek if fseek
module is not in use; since REPLACE_FSEEK worked otherwise.
(GNULIB_FTELLO): Likewise for ftell.
Reported by Ian Beckwith and others.
Signed-off-by: Eric Blake <ebb9@byu.net>
| author | Eric Blake <ebb9@byu.net> |
|---|---|
| date | Tue, 27 Oct 2009 10:42:50 -0600 |
| parents | cccbcdfb7afa |
| children | c2cbabec01dd |
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# fseek.m4 serial 2 dnl Copyright (C) 2007, 2009 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_FSEEK], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_FSEEKO]) dnl When fseeko needs fixes, fseek needs them too. dnl gl_FUNC_FSEEKO takes care of calling gl_REPLACE_FSEEK ]) AC_DEFUN([gl_REPLACE_FSEEK], [ AC_LIBOBJ([fseek]) AC_REQUIRE([gl_STDIO_H_DEFAULTS]) REPLACE_FSEEK=1 ])