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annotate m4/readtokens.m4 @ 12454:f7624052e60d

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fcntl: support F_DUPFD_CLOEXEC on systems with fcntl Implement F_DUPFD_CLOEXEC. The unit test still fails on systems with other fcntl bugs (such as cygwin 1.5 mishandling F_DUPFD, or mingw lacking fcntl altogether). Passes on Linux, both with and without kernel support, and on cygwin 1.7. * modules/fcntl (Files): List new files. (configure.ac): Run a test. * m4/fcntl.m4 (gl_FUNC_FCNTL): New file. * lib/fcntl.c (rpl_fcntl): Likewise. * m4/fcntl_h.m4 (gl_FCNTL_H_DEFAULTS): Add witness defaults. (gl_FCNTL_H): Always replace fcntl.h. * modules/fcntl-h (Makefile.am): Substitute witnesses. * lib/fcntl.in.h (fcntl): Declare replacement. (F_DUPFD_CLOEXEC, GNULIB_defined_F_DUPFD_CLOEXEC): New macro when needed, plus a witness. * doc/posix-functions/fcntl.texi (fcntl): Document this. * doc/posix-headers/fcntl.texi (fcntl.h): Likewise. * tests/test-fcntl.c: New file. * modules/fcntl-tests: Likewise. Signed-off-by: Eric Blake <ebb9@byu.net>
author Eric Blake <ebb9@byu.net>
date Mon, 07 Dec 2009 11:50:59 -0700
parents be9e01d008cb
children b5e42ef33b49
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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7172
be9e01d008cb Avoid the need for AC_LIBSOURCES in m4 macros.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5721
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1 # readtokens.m4 serial 5
be9e01d008cb Avoid the need for AC_LIBSOURCES in m4 macros.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5721
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2 dnl Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
5611
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4672
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3 dnl This file is free software; the Free Software Foundation
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4672
diff changeset
4 dnl gives unlimited permission to copy and/or distribute it,
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4672
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5 dnl with or without modifications, as long as this notice is preserved.
4107
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
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6
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
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7 AC_DEFUN([gl_READTOKENS],
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
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8 [
5721
abd018cd6020 Use AC_LIBSOURCES and AC_LIBOBJ to indicate source and object files.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5611
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9 AC_LIBOBJ([readtokens])
abd018cd6020 Use AC_LIBSOURCES and AC_LIBOBJ to indicate source and object files.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5611
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10
4107
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
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11 dnl Prerequisites of lib/readtokens.c.
4672
55a4d3c67ca7 Remove K&R cruft.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
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12 :
4107
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
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13 ])