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view m4/sprintf-posix.m4 @ 12454:f7624052e60d
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 | aaeb2f86d096 |
children | c2cbabec01dd |
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# sprintf-posix.m4 serial 12 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_SPRINTF_POSIX], [ AC_REQUIRE([gl_PRINTF_SIZES_C99]) AC_REQUIRE([gl_PRINTF_LONG_DOUBLE]) AC_REQUIRE([gl_PRINTF_INFINITE]) AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE]) AC_REQUIRE([gl_PRINTF_DIRECTIVE_A]) AC_REQUIRE([gl_PRINTF_DIRECTIVE_F]) AC_REQUIRE([gl_PRINTF_DIRECTIVE_N]) AC_REQUIRE([gl_PRINTF_DIRECTIVE_LS]) AC_REQUIRE([gl_PRINTF_POSITIONS]) AC_REQUIRE([gl_PRINTF_FLAG_GROUPING]) AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST]) AC_REQUIRE([gl_PRINTF_FLAG_ZERO]) AC_REQUIRE([gl_PRINTF_PRECISION]) AC_REQUIRE([gl_PRINTF_ENOMEM]) gl_cv_func_sprintf_posix=no case "$gl_cv_func_printf_sizes_c99" in *yes) case "$gl_cv_func_printf_long_double" in *yes) case "$gl_cv_func_printf_infinite" in *yes) case "$gl_cv_func_printf_infinite_long_double" in *yes) case "$gl_cv_func_printf_directive_a" in *yes) case "$gl_cv_func_printf_directive_f" in *yes) case "$gl_cv_func_printf_directive_n" in *yes) case "$gl_cv_func_printf_directive_ls" in *yes) case "$gl_cv_func_printf_positions" in *yes) case "$gl_cv_func_printf_flag_grouping" in *yes) case "$gl_cv_func_printf_flag_leftadjust" in *yes) case "$gl_cv_func_printf_flag_zero" in *yes) case "$gl_cv_func_printf_precision" in *yes) case "$gl_cv_func_printf_enomem" in *yes) # sprintf exists and is # already POSIX compliant. gl_cv_func_sprintf_posix=yes ;; esac ;; esac ;; esac ;; esac ;; esac ;; esac ;; esac ;; esac ;; esac ;; esac ;; esac ;; esac ;; esac ;; esac if test $gl_cv_func_sprintf_posix = no; then gl_PREREQ_VASNPRINTF_LONG_DOUBLE gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE gl_PREREQ_VASNPRINTF_DIRECTIVE_A gl_PREREQ_VASNPRINTF_DIRECTIVE_F gl_PREREQ_VASNPRINTF_DIRECTIVE_LS gl_PREREQ_VASNPRINTF_FLAG_GROUPING gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST gl_PREREQ_VASNPRINTF_FLAG_ZERO gl_PREREQ_VASNPRINTF_PRECISION gl_PREREQ_VASNPRINTF_ENOMEM gl_REPLACE_VASNPRINTF gl_REPLACE_SPRINTF fi ]) AC_DEFUN([gl_REPLACE_SPRINTF], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_LIBOBJ([sprintf]) REPLACE_SPRINTF=1 gl_PREREQ_SPRINTF ]) AC_DEFUN([gl_PREREQ_SPRINTF], [:])