LDP
/
man-pages
mirror of https://github.com/mkerrisk/man-pages
0
1
Fork 0
Code Releases Activity

feature_test_macros.7: Clarify that _XOPEN_SOURCE_EXTENDED is obsolete 

Since SUSv2, _XOPEN_SOURCE_EXTENDED is no longer specified
in the standard.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2016-02-08 12:32:04 +01:00
parent a7d7000f59
commit d1473a830f
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
man7/feature_test_macros.7
View File

@ -248,6 +248,9 @@ Defining
.B _XOPEN_SOURCE
with a value of 500 or more also produces the same effect as defining
.BR _XOPEN_SOURCE_EXTENDED .
Use of
.BR _XOPEN_SOURCE_EXTENDED
in new source code should be avoided.
.TP
.BR _ISOC99_SOURCE " (since glibc 2.1.3)"
Exposes declarations consistent with the ISO C99 standard.
@ -607,9 +610,9 @@ POSIX.1 specifies
.BR _POSIX_SOURCE ,
and
.BR _XOPEN_SOURCE .
.B _XOPEN_SOURCE_EXTENDED
was specified by XPG4v2 (aka SUSv1).
.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.