# SOME DESCRIPTIVE TITLE
# Copyright (C) YEAR Free Software Foundation, Inc.
# This file is distributed under the same license as the PACKAGE package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"POT-Creation-Date: 2024-06-01 05:49+0200\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"Language: \n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"

#. type: TH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "feature_test_macros"
msgstr ""

#. type: TH
#: archlinux debian-unstable opensuse-tumbleweed
#, no-wrap
msgid "2024-05-02"
msgstr ""

#. type: TH
#: archlinux debian-unstable
#, no-wrap
msgid "Linux man-pages 6.8"
msgstr ""

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "NAME"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "feature_test_macros - feature test macros"
msgstr ""

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "DESCRIPTION"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Feature test macros allow the programmer to control the definitions that are "
"exposed by system header files when a program is compiled."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"B<NOTE:> In order to be effective, a feature test macro I<must be defined "
"before including any header files>.  This can be done either in the "
"compilation command (I<cc -DMACRO=value>)  or by defining the macro within "
"the source code before including any headers.  The requirement that the "
"macro must be defined before including any header file exists because header "
"files may freely include one another.  Thus, for example, in the following "
"lines, defining the B<_GNU_SOURCE> macro may have no effect because the "
"header I<E<lt>abc.hE<gt>> itself includes I<E<lt>xyz.hE<gt>> (POSIX "
"explicitly allows this):"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"#include E<lt>abc.hE<gt>\n"
"#define _GNU_SOURCE\n"
"#include E<lt>xyz.hE<gt>\n"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Some feature test macros are useful for creating portable applications, by "
"preventing nonstandard definitions from being exposed.  Other macros can be "
"used to expose nonstandard definitions that are not exposed by default."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The precise effects of each of the feature test macros described below can "
"be ascertained by inspecting the I<E<lt>features.hE<gt>> header file.  "
"B<Note>: applications do I<not> need to directly include I<E<lt>features."
"hE<gt>>; indeed, doing so is actively discouraged.  See NOTES."
msgstr ""

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "Specification of feature test macro requirements in manual pages"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"When a function requires that a feature test macro is defined, the manual "
"page SYNOPSIS typically includes a note of the following form (this example "
"from the B<acct>(2)  manual page):"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<#include E<lt>unistd.hE<gt>>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<int acct(const char *>I<filename>B<);>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"Feature Test Macro Requirements for glibc (see\n"
"B<feature_test_macros>(7)):\n"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<acct>(): _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE E<lt> 500)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The B<||> means that in order to obtain the declaration of B<acct>(2)  from "
"I<E<lt>unistd.hE<gt>>, I<either> of the following macro definitions must be "
"made before including any header files:"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"#define _BSD_SOURCE\n"
"#define _XOPEN_SOURCE        /* or any value E<lt> 500 */\n"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Alternatively, equivalent definitions can be included in the compilation "
"command:"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"cc -D_BSD_SOURCE\n"
"cc -D_XOPEN_SOURCE           # Or any value E<lt> 500\n"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Note that, as described below, B<some feature test macros are defined by "
"default>, so that it may not always be necessary to explicitly specify the "
"feature test macro(s) shown in the SYNOPSIS."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"In a few cases, manual pages use a shorthand for expressing the feature test "
"macro requirements (this example from B<readahead>(2)):"
msgstr ""

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-tumbleweed
#, no-wrap
msgid ""
"B<#define _GNU_SOURCE>\n"
"B<#define _FILE_OFFSET_BITS 64>\n"
"B<#include E<lt>fcntl.hE<gt>>\n"
msgstr ""

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-tumbleweed
#, no-wrap
msgid "B<ssize_t readahead(int >I<fd>B<, off_t *>I<offset>B<, size_t >I<count>B<);>\n"
msgstr ""

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-tumbleweed
msgid ""
"This format is employed when the feature test macros ensure that the proper "
"function declarations are visible, and the macros are not defined by default."
msgstr ""

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "Feature test macros understood by glibc"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The paragraphs below explain how feature test macros are handled in glibc 2."
"I<x>, I<x> E<gt> 0."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "First, though, a summary of a few details for the impatient:"
msgstr ""

#. type: IP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "\\[bu]"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The macros that you most likely need to use in modern source code are "
"B<_POSIX_C_SOURCE> (for definitions from various versions of POSIX.1), "
"B<_XOPEN_SOURCE> (for definitions from various versions of SUS), "
"B<_GNU_SOURCE> (for GNU and/or Linux specific stuff), and B<_DEFAULT_SOURCE> "
"(to get definitions that would normally be provided by default)."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Certain macros are defined with default values.  Thus, although one or more "
"macros may be indicated as being required in the SYNOPSIS of a man page, it "
"may not be necessary to define them explicitly.  Full details of the "
"defaults are given later in this man page."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining B<_XOPEN_SOURCE> with a value of 600 or greater produces the same "
"effects as defining B<_POSIX_C_SOURCE> with a value of 200112L or greater.  "
"Where one sees"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "_POSIX_C_SOURCE E<gt>= 200112L\n"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"in the feature test macro requirements in the SYNOPSIS of a man page, it is "
"implicit that the following has the same effect:"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "_XOPEN_SOURCE E<gt>= 600\n"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining B<_XOPEN_SOURCE> with a value of 700 or greater produces the same "
"effects as defining B<_POSIX_C_SOURCE> with a value of 200809L or greater.  "
"Where one sees"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "_POSIX_C_SOURCE E<gt>= 200809L\n"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "_XOPEN_SOURCE E<gt>= 700\n"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "glibc understands the following feature test macros:"
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<__STRICT_ANSI__>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"ISO Standard C.  This macro is implicitly defined by B<gcc>(1)  when invoked "
"with, for example, the I<-std=c99> or I<-ansi> flag."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_POSIX_C_SOURCE>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining this macro causes header files to expose definitions as follows:"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The value 1 exposes definitions conforming to POSIX.1-1990 and ISO C (1990)."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The value 2 or greater additionally exposes definitions for POSIX.2-1992."
msgstr ""

#.  199506L functionality is available only since glibc 2.1
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The value 199309L or greater additionally exposes definitions for POSIX.1b "
"(real-time extensions)."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The value 199506L or greater additionally exposes definitions for POSIX.1c "
"(threads)."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"(Since glibc 2.3.3)  The value 200112L or greater additionally exposes "
"definitions corresponding to the POSIX.1-2001 base specification (excluding "
"the XSI extension).  This value also causes C95 (since glibc 2.12) and C99 "
"(since glibc 2.10) features to be exposed (in other words, the equivalent of "
"defining B<_ISOC99_SOURCE>)."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"(Since glibc 2.10)  The value 200809L or greater additionally exposes "
"definitions corresponding to the POSIX.1-2008 base specification (excluding "
"the XSI extension)."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_POSIX_SOURCE>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining this obsolete macro with any value is equivalent to defining "
"B<_POSIX_C_SOURCE> with the value 1."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Since this macro is obsolete, its usage is generally not documented when "
"discussing feature test macro requirements in the man pages."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_XOPEN_SOURCE>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining with any value exposes definitions conforming to POSIX.1, POSIX.2, "
"and XPG4."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The value 500 or greater additionally exposes definitions for SUSv2 (UNIX "
"98)."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"(Since glibc 2.2) The value 600 or greater additionally exposes definitions "
"for SUSv3 (UNIX 03; i.e., the POSIX.1-2001 base specification plus the XSI "
"extension) and C99 definitions."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"(Since glibc 2.10) The value 700 or greater additionally exposes definitions "
"for SUSv4 (i.e., the POSIX.1-2008 base specification plus the XSI extension)."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"If B<__STRICT_ANSI__> is not defined, or B<_XOPEN_SOURCE> is defined with a "
"value greater than or equal to 500 I<and> neither B<_POSIX_SOURCE> nor "
"B<_POSIX_C_SOURCE> is explicitly defined, then the following macros are "
"implicitly defined:"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<_POSIX_SOURCE> is defined with the value 1."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"B<_POSIX_C_SOURCE> is defined, according to the value of B<_XOPEN_SOURCE>:"
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_XOPEN_SOURCE> E<lt> 500"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<_POSIX_C_SOURCE> is defined with the value 2."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "500 E<lt>= B<_XOPEN_SOURCE> E<lt> 600"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<_POSIX_C_SOURCE> is defined with the value 199506L."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "600 E<lt>= B<_XOPEN_SOURCE> E<lt> 700"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<_POSIX_C_SOURCE> is defined with the value 200112L."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "700 E<lt>= B<_XOPEN_SOURCE> (since glibc 2.10)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<_POSIX_C_SOURCE> is defined with the value 200809L."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"In addition, defining B<_XOPEN_SOURCE> with a value of 500 or greater "
"produces the same effects as defining B<_XOPEN_SOURCE_EXTENDED>."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_XOPEN_SOURCE_EXTENDED>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"If this macro is defined, I<and> B<_XOPEN_SOURCE> is defined, then expose "
"definitions corresponding to the XPG4v2 (SUSv1) UNIX extensions (UNIX 95).  "
"Defining B<_XOPEN_SOURCE> with a value of 500 or more also produces the same "
"effect as defining B<_XOPEN_SOURCE_EXTENDED>.  Use of "
"B<_XOPEN_SOURCE_EXTENDED> in new source code should be avoided."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Since defining B<_XOPEN_SOURCE> with a value of 500 or more has the same "
"effect as defining B<_XOPEN_SOURCE_EXTENDED>, the latter (obsolete) feature "
"test macro is generally not described in the SYNOPSIS in man pages."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_ISOC99_SOURCE> (since glibc 2.1.3)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "Exposes declarations consistent with the ISO C99 standard."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Earlier glibc 2.1.x versions recognized an equivalent macro named "
"B<_ISOC9X_SOURCE> (because the C99 standard had not then been finalized).  "
"Although the use of this macro is obsolete, glibc continues to recognize it "
"for backward compatibility."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining B<_ISOC99_SOURCE> also exposes ISO C (1990) Amendment 1 (\"C95\") "
"definitions.  (The primary change in C95 was support for international "
"character sets.)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Invoking the C compiler with the option I<-std=c99> produces the same "
"effects as defining this macro."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_ISOC11_SOURCE> (since glibc 2.16)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Exposes declarations consistent with the ISO C11 standard.  Defining this "
"macro also enables C99 and C95 features (like B<_ISOC99_SOURCE>)."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Invoking the C compiler with the option I<-std=c11> produces the same "
"effects as defining this macro."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_LARGEFILE64_SOURCE>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Expose definitions for the alternative API specified by the LFS (Large File "
"Summit) as a \"transitional extension\" to the Single UNIX Specification.  "
"(See E<.UR http:\\:/\\:/opengroup.org\\:/platform\\:/lfs.html> E<.UE .)> The "
"alternative API consists of a set of new objects (i.e., functions and types) "
"whose names are suffixed with \"64\" (e.g., I<off64_t> versus I<off_t>, "
"B<lseek64>()  versus B<lseek>(), etc.).  New programs should not employ this "
"macro; instead I<_FILE_OFFSET_BITS=64> should be employed."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_LARGEFILE_SOURCE>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"This macro was historically used to expose certain functions (specifically "
"B<fseeko>(3)  and B<ftello>(3))  that address limitations of earlier APIs "
"(B<fseek>(3)  and B<ftell>(3))  that use I<long> for file offsets.  This "
"macro is implicitly defined if B<_XOPEN_SOURCE> is defined with a value "
"greater than or equal to 500.  New programs should not employ this macro; "
"defining B<_XOPEN_SOURCE> as just described or defining B<_FILE_OFFSET_BITS> "
"with the value 64 is the preferred mechanism to achieve the same result."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_FILE_OFFSET_BITS>"
msgstr ""

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-tumbleweed
msgid ""
"Defining this macro with the value 64 automatically converts references to "
"32-bit functions and data types related to file I/O and filesystem "
"operations into references to their 64-bit counterparts.  This is useful for "
"performing I/O on large files (E<gt> 2 Gigabytes)  on 32-bit systems.  It is "
"also useful when calling functions like B<copy_file_range>(2)  that were "
"added more recently and that come only in 64-bit flavors.  (Defining this "
"macro permits correctly written programs to use large files with only a "
"recompilation being required.)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"64-bit systems naturally permit file sizes greater than 2 Gigabytes, and on "
"those systems this macro has no effect."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_TIME_BITS>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining this macro with the value 64 changes the width of B<time_t>(3type)  "
"to 64-bit which allows handling of timestamps beyond 2038.  It is closely "
"related to B<_FILE_OFFSET_BITS> and depending on implementation, may require "
"it set.  This macro is available as of glibc 2.34."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_BSD_SOURCE> (deprecated since glibc 2.20)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining this macro with any value causes header files to expose BSD-derived "
"definitions."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"In glibc versions up to and including 2.18, defining this macro also causes "
"BSD definitions to be preferred in some situations where standards conflict, "
"unless one or more of B<_SVID_SOURCE>, B<_POSIX_SOURCE>, B<_POSIX_C_SOURCE>, "
"B<_XOPEN_SOURCE>, B<_XOPEN_SOURCE_EXTENDED>, or B<_GNU_SOURCE> is defined, "
"in which case BSD definitions are disfavored.  Since glibc 2.19, "
"B<_BSD_SOURCE> no longer causes BSD definitions to be preferred in case of "
"conflicts."
msgstr ""

#.  commit c941736c92fa3a319221f65f6755659b2a5e0a20
#.  commit 498afc54dfee41d33ba519f496e96480badace8e
#.  commit acd7f096d79c181866d56d4aaf3b043e741f1e2c
#.  commit ade40b10ff5fa59a318cf55b9d8414b758e8df78
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Since glibc 2.20, this macro is deprecated.  It now has the same effect as "
"defining B<_DEFAULT_SOURCE>, but generates a compile-time warning (unless "
"B<_DEFAULT_SOURCE> is also defined).  Use B<_DEFAULT_SOURCE> instead.  To "
"allow code that requires B<_BSD_SOURCE> in glibc 2.19 and earlier and "
"B<_DEFAULT_SOURCE> in glibc 2.20 and later to compile without warnings, "
"define I<both> B<_BSD_SOURCE> and B<_DEFAULT_SOURCE>."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_SVID_SOURCE> (deprecated since glibc 2.20)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining this macro with any value causes header files to expose System V-"
"derived definitions.  (SVID == System V Interface Definition; see "
"B<standards>(7).)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Since glibc 2.20, this macro is deprecated in the same fashion as "
"B<_BSD_SOURCE>."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_DEFAULT_SOURCE> (since glibc 2.19)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"This macro can be defined to ensure that the \"default\" definitions are "
"provided even when the defaults would otherwise be disabled, as happens when "
"individual macros are explicitly defined, or the compiler is invoked in one "
"of its \"standard\" modes (e.g., I<cc\\ -std=c99>).  Defining "
"B<_DEFAULT_SOURCE> without defining other individual macros or invoking the "
"compiler in one of its \"standard\" modes has no effect."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The \"default\" definitions comprise those required by POSIX.1-2008 and ISO "
"C99, as well as various definitions originally derived from BSD and System "
"V.  On glibc 2.19 and earlier, these defaults were approximately equivalent "
"to explicitly defining the following:"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "cc -D_BSD_SOURCE -D_SVID_SOURCE -D_POSIX_C_SOURCE=200809\n"
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_ATFILE_SOURCE> (since glibc 2.4)"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining this macro with any value causes header files to expose "
"declarations of a range of functions with the suffix \"at\"; see "
"B<openat>(2).  Since glibc 2.10, this macro is also implicitly defined if "
"B<_POSIX_C_SOURCE> is defined with a value greater than or equal to 200809L."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_GNU_SOURCE>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining this macro (with any value) implicitly defines B<_ATFILE_SOURCE>, "
"B<_LARGEFILE64_SOURCE>, B<_ISOC99_SOURCE>, B<_XOPEN_SOURCE_EXTENDED>, "
"B<_POSIX_SOURCE>, B<_POSIX_C_SOURCE> with the value 200809L (200112L before "
"glibc 2.10; 199506L before glibc 2.5; 199309L before glibc 2.1)  and "
"B<_XOPEN_SOURCE> with the value 700 (600 before glibc 2.10; 500 before glibc "
"2.2).  In addition, various GNU-specific extensions are also exposed."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Since glibc 2.19, defining B<_GNU_SOURCE> also has the effect of implicitly "
"defining B<_DEFAULT_SOURCE>.  Before glibc 2.20, defining B<_GNU_SOURCE> "
"also had the effect of implicitly defining B<_BSD_SOURCE> and "
"B<_SVID_SOURCE>."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_REENTRANT>"
msgstr ""

#.  Zack Weinberg
#.      There did once exist C libraries where it was necessary. The ones
#.      I remember were proprietary Unix vendor libcs from the mid-1990s
#.      You would get completely unlocked stdio without _REENTRANT.
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Historically, on various C libraries it was necessary to define this macro "
"in all multithreaded code.  (Some C libraries may still require this.)  In "
"glibc, this macro also exposed definitions of certain reentrant functions."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"However, glibc has been thread-safe by default for many years; since glibc "
"2.3, the only effect of defining B<_REENTRANT> has been to enable one or two "
"of the same declarations that are also enabled by defining "
"B<_POSIX_C_SOURCE> with a value of 199606L or greater."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"B<_REENTRANT> is now obsolete.  In glibc 2.25 and later, defining "
"B<_REENTRANT> is equivalent to defining B<_POSIX_C_SOURCE> with the value "
"199606L.  If a higher POSIX conformance level is selected by any other means "
"(such as B<_POSIX_C_SOURCE> itself, B<_XOPEN_SOURCE>, B<_DEFAULT_SOURCE>, or "
"B<_GNU_SOURCE>), then defining B<_REENTRANT> has no effect."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"This macro is automatically defined if one compiles with I<cc\\ -pthread>."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_THREAD_SAFE>"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Synonym for the (deprecated)  B<_REENTRANT>, provided for compatibility with "
"some other implementations."
msgstr ""

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<_FORTIFY_SOURCE> (since glibc 2.3.4)"
msgstr ""

#.  For more detail, see:
#.  http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html
#.  [PATCH] Object size checking to prevent (some) buffer overflows
#.  * From: Jakub Jelinek <jakub at redhat dot com>
#.  * To: gcc-patches at gcc dot gnu dot org
#.  * Date: Tue, 21 Sep 2004 04:16:40 -0400
#.  Look for __USE_FORTIFY_LEVEL in the header files
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Defining this macro causes some lightweight checks to be performed to detect "
"some buffer overflow errors when employing various string and memory "
"manipulation functions (for example, B<memcpy>(3), B<memset>(3), "
"B<stpcpy>(3), B<strcpy>(3), B<strncpy>(3), B<strcat>(3), B<strncat>(3), "
"B<sprintf>(3), B<snprintf>(3), B<vsprintf>(3), B<vsnprintf>(3), B<gets>(3), "
"and wide character variants thereof).  For some functions, argument "
"consistency is checked; for example, a check is made that B<open>(2)  has "
"been supplied with a I<mode> argument when the specified flags include "
"B<O_CREAT>.  Not all problems are detected, just some common cases."
msgstr ""

#
#
#.  For example, given the following code
#.         int d;
#.         char buf[1000], buf[1000];
#.         strcpy(fmt, "Hello world
#. %n");
#.         snprintf(buf, sizeof(buf), fmt, &d);
#.  Compiling with "gcc -D_FORTIFY_SOURCE=2 -O1" and then running will
#.  cause the following diagnostic at run time at the snprintf() call
#.         *** %n in writable segment detected ***
#.         Aborted (core dumped)
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"If B<_FORTIFY_SOURCE> is set to 1, with compiler optimization level 1 "
"(I<gcc\\ -O1>)  and above, checks that shouldn't change the behavior of "
"conforming programs are performed.  With B<_FORTIFY_SOURCE> set to 2, some "
"more checking is added, but some conforming programs might fail."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Some of the checks can be performed at compile time (via macros logic "
"implemented in header files), and result in compiler warnings; other checks "
"take place at run time, and result in a run-time error if the check fails."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"With B<_FORTIFY_SOURCE> set to 3, additional checking is added to intercept "
"some function calls used with an argument of variable size where the "
"compiler can deduce an upper bound for its value.  For example, a program "
"where B<malloc>(3)'s size argument is variable can now be fortified."
msgstr ""

#.  glibc is not an absolute requirement (gcc has libssp; NetBSD/newlib
#.  and Darwin each have their own implementation), but let's keep it
#.  simple.
#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-tumbleweed
msgid ""
"Use of this macro requires compiler support, available since gcc 4.0 and "
"clang 2.6.  Use of B<_FORTIFY_SOURCE> set to 3 requires gcc 12.0 or later, "
"or clang 9.0 or later, in conjunction with glibc 2.33 or later."
msgstr ""

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "Default definitions, implicit definitions, and combining definitions"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"If no feature test macros are explicitly defined, then the following feature "
"test macros are defined by default: B<_BSD_SOURCE> (in glibc 2.19 and "
"earlier), B<_SVID_SOURCE> (in glibc 2.19 and earlier), B<_DEFAULT_SOURCE> "
"(since glibc 2.19), B<_POSIX_SOURCE>, and B<_POSIX_C_SOURCE>=200809L "
"(200112L before glibc 2.10; 199506L before glibc 2.4; 199309L before glibc "
"2.1)."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"If any of B<__STRICT_ANSI__>, B<_ISOC99_SOURCE>, B<_ISOC11_SOURCE> (since "
"glibc 2.18), B<_POSIX_SOURCE>, B<_POSIX_C_SOURCE>, B<_XOPEN_SOURCE>, "
"B<_XOPEN_SOURCE_EXTENDED> (in glibc 2.11 and earlier), B<_BSD_SOURCE> (in "
"glibc 2.19 and earlier), or B<_SVID_SOURCE> (in glibc 2.19 and earlier)  is "
"explicitly defined, then B<_BSD_SOURCE>, B<_SVID_SOURCE>, and "
"B<_DEFAULT_SOURCE> are not defined by default."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"If B<_POSIX_SOURCE> and B<_POSIX_C_SOURCE> are not explicitly defined, and "
"either B<__STRICT_ANSI__> is not defined or B<_XOPEN_SOURCE> is defined with "
"a value of 500 or more, then"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<_POSIX_SOURCE> is defined with the value 1; and"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<_POSIX_C_SOURCE> is defined with one of the following values:"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "2, if B<_XOPEN_SOURCE> is defined with a value less than 500;"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"199506L, if B<_XOPEN_SOURCE> is defined with a value greater than or equal "
"to 500 and less than 600; or"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"(since glibc 2.4) 200112L, if B<_XOPEN_SOURCE> is defined with a value "
"greater than or equal to 600 and less than 700."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"(Since glibc 2.10)  200809L, if B<_XOPEN_SOURCE> is defined with a value "
"greater than or equal to 700."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Older versions of glibc do not know about the values 200112L and 200809L for "
"B<_POSIX_C_SOURCE>, and the setting of this macro will depend on the glibc "
"version."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"If B<_XOPEN_SOURCE> is undefined, then the setting of B<_POSIX_C_SOURCE> "
"depends on the glibc version: 199506L, before glibc 2.4; 200112L, since "
"glibc 2.4 to glibc 2.9; and 200809L, since glibc 2.10."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "Multiple macros can be defined; the results are additive."
msgstr ""

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "STANDARDS"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"POSIX.1 specifies B<_POSIX_C_SOURCE>, B<_POSIX_SOURCE>, and B<_XOPEN_SOURCE>."
msgstr ""

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"B<_FILE_OFFSET_BITS> is not specified by any standard, but is employed on "
"some other implementations."
msgstr ""

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"B<_BSD_SOURCE>, B<_SVID_SOURCE>, B<_DEFAULT_SOURCE>, B<_ATFILE_SOURCE>, "
"B<_GNU_SOURCE>, B<_FORTIFY_SOURCE>, B<_REENTRANT>, and B<_THREAD_SAFE> are "
"specific to glibc."
msgstr ""

#. type: SH
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "HISTORY"
msgstr ""

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"B<_XOPEN_SOURCE_EXTENDED> was specified by XPG4v2 (aka SUSv1), but is not "
"present in SUSv2 and later."
msgstr ""

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "NOTES"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"I<E<lt>features.hE<gt>> is a Linux/glibc-specific header file.  Other "
"systems have an analogous file, but typically with a different name.  This "
"header file is automatically included by other header files as required: it "
"is not necessary to explicitly include it in order to employ feature test "
"macros."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"According to which of the above feature test macros are defined, "
"I<E<lt>features.hE<gt>> internally defines various other macros that are "
"checked by other glibc header files.  These macros have names prefixed by "
"two underscores (e.g., B<__USE_MISC>).  Programs should I<never> define "
"these macros directly: instead, the appropriate feature test macro(s) from "
"the list above should be employed."
msgstr ""

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "EXAMPLES"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The program below can be used to explore how the various feature test macros "
"are set depending on the glibc version and what feature test macros are "
"explicitly set.  The following shell session, on a system with glibc 2.10, "
"shows some examples of what we would see:"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"$ B<cc ftm.c>\n"
"$ B<./a.out>\n"
"_POSIX_SOURCE defined\n"
"_POSIX_C_SOURCE defined: 200809L\n"
"_BSD_SOURCE defined\n"
"_SVID_SOURCE defined\n"
"_ATFILE_SOURCE defined\n"
"$ B<cc -D_XOPEN_SOURCE=500 ftm.c>\n"
"$ B<./a.out>\n"
"_POSIX_SOURCE defined\n"
"_POSIX_C_SOURCE defined: 199506L\n"
"_XOPEN_SOURCE defined: 500\n"
"$ B<cc -D_GNU_SOURCE ftm.c>\n"
"$ B<./a.out>\n"
"_POSIX_SOURCE defined\n"
"_POSIX_C_SOURCE defined: 200809L\n"
"_ISOC99_SOURCE defined\n"
"_XOPEN_SOURCE defined: 700\n"
"_XOPEN_SOURCE_EXTENDED defined\n"
"_LARGEFILE64_SOURCE defined\n"
"_BSD_SOURCE defined\n"
"_SVID_SOURCE defined\n"
"_ATFILE_SOURCE defined\n"
"_GNU_SOURCE defined\n"
msgstr ""

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "Program source"
msgstr ""

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-tumbleweed
#, no-wrap
msgid ""
"/* ftm.c */\n"
"\\&\n"
"#include E<lt>stdint.hE<gt>\n"
"#include E<lt>stdio.hE<gt>\n"
"#include E<lt>unistd.hE<gt>\n"
"#include E<lt>stdlib.hE<gt>\n"
"\\&\n"
"int\n"
"main(int argc, char *argv[])\n"
"{\n"
"#ifdef _POSIX_SOURCE\n"
"    printf(\"_POSIX_SOURCE defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _POSIX_C_SOURCE\n"
"    printf(\"_POSIX_C_SOURCE defined: %jdL\\en\",\n"
"            (intmax_t) _POSIX_C_SOURCE);\n"
"#endif\n"
"\\&\n"
"#ifdef _ISOC99_SOURCE\n"
"    printf(\"_ISOC99_SOURCE defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _ISOC11_SOURCE\n"
"    printf(\"_ISOC11_SOURCE defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _XOPEN_SOURCE\n"
"    printf(\"_XOPEN_SOURCE defined: %d\\en\", _XOPEN_SOURCE);\n"
"#endif\n"
"\\&\n"
"#ifdef _XOPEN_SOURCE_EXTENDED\n"
"    printf(\"_XOPEN_SOURCE_EXTENDED defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _LARGEFILE64_SOURCE\n"
"    printf(\"_LARGEFILE64_SOURCE defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _FILE_OFFSET_BITS\n"
"    printf(\"_FILE_OFFSET_BITS defined: %d\\en\", _FILE_OFFSET_BITS);\n"
"#endif\n"
"\\&\n"
"#ifdef _TIME_BITS\n"
"    printf(\"_TIME_BITS defined: %d\\en\", _TIME_BITS);\n"
"#endif\n"
"\\&\n"
"#ifdef _BSD_SOURCE\n"
"    printf(\"_BSD_SOURCE defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _SVID_SOURCE\n"
"    printf(\"_SVID_SOURCE defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _DEFAULT_SOURCE\n"
"    printf(\"_DEFAULT_SOURCE defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _ATFILE_SOURCE\n"
"    printf(\"_ATFILE_SOURCE defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _GNU_SOURCE\n"
"    printf(\"_GNU_SOURCE defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _REENTRANT\n"
"    printf(\"_REENTRANT defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _THREAD_SAFE\n"
"    printf(\"_THREAD_SAFE defined\\en\");\n"
"#endif\n"
"\\&\n"
"#ifdef _FORTIFY_SOURCE\n"
"    printf(\"_FORTIFY_SOURCE defined\\en\");\n"
"#endif\n"
"\\&\n"
"    exit(EXIT_SUCCESS);\n"
"}\n"
msgstr ""

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "SEE ALSO"
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<libc>(7), B<standards>(7), B<system_data_types>(7)"
msgstr ""

#.  But beware: the info libc document is out of date (Jul 07, mtk)
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "The section \"Feature Test Macros\" under I<info libc>."
msgstr ""

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "I</usr/include/features.h>"
msgstr ""

#. type: TH
#: debian-bookworm
#, no-wrap
msgid "2023-02-05"
msgstr ""

#. type: TH
#: debian-bookworm
#, no-wrap
msgid "Linux man-pages 6.03"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"B<#define _GNU_SOURCE>\n"
"B<#include E<lt>fcntl.hE<gt>>\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid "B<ssize_t readahead(int >I<fd>B<, off64_t *>I<offset>B<, size_t >I<count>B<);>\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
msgid ""
"This format is employed in cases where only a single feature test macro can "
"be used to expose the function declaration, and that macro is not defined by "
"default."
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
msgid ""
"Defining this macro with the value 64 automatically converts references to "
"32-bit functions and data types related to file I/O and filesystem "
"operations into references to their 64-bit counterparts.  This is useful for "
"performing I/O on large files (E<gt> 2 Gigabytes)  on 32-bit systems.  "
"(Defining this macro permits correctly written programs to use large files "
"with only a recompilation being required.)"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
msgid ""
"Use of this macro requires compiler support, available with B<gcc>(1)  since "
"glibc 4.0."
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
msgid ""
"Use of B<_FORTIFY_SOURCE> set to 3 requires B<gcc>(1)  version 12.0 or later."
msgstr ""

#. type: Plain text
#: debian-bookworm
msgid ""
"B<_XOPEN_SOURCE_EXTENDED> was specified by XPG4v2 (aka SUSv1), but is not "
"present in SUSv2 and later.  B<_FILE_OFFSET_BITS> is not specified by any "
"standard, but is employed on some other implementations."
msgstr ""

#. type: Plain text
#: debian-bookworm
msgid ""
"B<_BSD_SOURCE>, B<_SVID_SOURCE>, B<_DEFAULT_SOURCE>, B<_ATFILE_SOURCE>, "
"B<_GNU_SOURCE>, B<_FORTIFY_SOURCE>, B<_REENTRANT>, and B<_THREAD_SAFE> are "
"specific to Linux (glibc)."
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid "/* ftm.c */\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#include E<lt>stdint.hE<gt>\n"
"#include E<lt>stdio.hE<gt>\n"
"#include E<lt>unistd.hE<gt>\n"
"#include E<lt>stdlib.hE<gt>\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"int\n"
"main(int argc, char *argv[])\n"
"{\n"
"#ifdef _POSIX_SOURCE\n"
"    printf(\"_POSIX_SOURCE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _POSIX_C_SOURCE\n"
"    printf(\"_POSIX_C_SOURCE defined: %jdL\\en\",\n"
"            (intmax_t) _POSIX_C_SOURCE);\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _ISOC99_SOURCE\n"
"    printf(\"_ISOC99_SOURCE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _ISOC11_SOURCE\n"
"    printf(\"_ISOC11_SOURCE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _XOPEN_SOURCE\n"
"    printf(\"_XOPEN_SOURCE defined: %d\\en\", _XOPEN_SOURCE);\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _XOPEN_SOURCE_EXTENDED\n"
"    printf(\"_XOPEN_SOURCE_EXTENDED defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _LARGEFILE64_SOURCE\n"
"    printf(\"_LARGEFILE64_SOURCE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _FILE_OFFSET_BITS\n"
"    printf(\"_FILE_OFFSET_BITS defined: %d\\en\", _FILE_OFFSET_BITS);\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _TIME_BITS\n"
"    printf(\"_TIME_BITS defined: %d\\en\", _TIME_BITS);\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _BSD_SOURCE\n"
"    printf(\"_BSD_SOURCE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _SVID_SOURCE\n"
"    printf(\"_SVID_SOURCE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _DEFAULT_SOURCE\n"
"    printf(\"_DEFAULT_SOURCE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _ATFILE_SOURCE\n"
"    printf(\"_ATFILE_SOURCE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _GNU_SOURCE\n"
"    printf(\"_GNU_SOURCE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _REENTRANT\n"
"    printf(\"_REENTRANT defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _THREAD_SAFE\n"
"    printf(\"_THREAD_SAFE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"#ifdef _FORTIFY_SOURCE\n"
"    printf(\"_FORTIFY_SOURCE defined\\en\");\n"
"#endif\n"
msgstr ""

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"    exit(EXIT_SUCCESS);\n"
"}\n"
msgstr ""

#. type: TH
#: fedora-40 fedora-rawhide mageia-cauldron
#, no-wrap
msgid "2023-10-31"
msgstr ""

#. type: TH
#: fedora-40 mageia-cauldron
#, no-wrap
msgid "Linux man-pages 6.06"
msgstr ""

#. type: TH
#: fedora-rawhide
#, no-wrap
msgid "Linux man-pages 6.7"
msgstr ""

#. type: TH
#: opensuse-leap-15-6
#, no-wrap
msgid "2023-03-30"
msgstr ""

#. type: TH
#: opensuse-leap-15-6
#, no-wrap
msgid "Linux man-pages 6.04"
msgstr ""

#. type: TH
#: opensuse-tumbleweed
#, no-wrap
msgid "Linux man-pages (unreleased)"
msgstr ""