Bug 284 - POSIX.1-2001: code not compiling when -D_XOPEN_SOURCE=600 only defined
Summary: POSIX.1-2001: code not compiling when -D_XOPEN_SOURCE=600 only defined
Status: RESOLVED WORKSFORME
Alias: None
Product: glibc
Classification: Unclassified
Component: libc (show other bugs)
Version: 2.3.3
: P2 normal
Target Milestone: ---
Assignee: GOTO Masanori
URL:
Keywords:
Depends on:
Blocks: libc235
  Show dependency tree / graph
 
Reported: 2004-07-23 16:28 UTC by Andrew Josey
Modified: 2019-04-10 10:59 UTC (History)
1 user (show)

See Also:
Host:
Target:
Build:
Last reconfirmed:
Project(s) to access:
ssh public key:
fweimer: security-

Attachments
Test program (409 bytes, text/plain)
2004-07-23 16:30 UTC, Andrew Josey 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Andrew Josey 2004-07-23 16:28:39 UTC 
The attached code does not compile when compiled with just
c99 -c -D_XOPEN_SOURCE=600
but does when you add -D_POSIX_C_SOURCE=200112L,
i.e. 

 $ c99 -c  -D_XOPEN_SOURCE=600 -D_POSIX_C_SOURCE=200112L ts.c
-sh-2.05b$ c99 -c  -D_XOPEN_SOURCE=600  ts.c
In file included from ts.c:2:
/usr/include/pthread.h:651: error: syntax error before "clockid_t"
ts.c:28: error: syntax error before "siginfo_t"
ts.c: In function `dummy_rt_signal':
ts.c:36: error: structure has no member named `sa_sigaction'

POSIX 1003.1 volume System Interfaces Section 2.2.1 states:

Since this volume of IEEE Std 1003.1-2001 is aligned with the ISO C standard,
and since all functionality enabled by _POSIX_C_SOURCE set equal to 200112L is
enabled by _XOPEN_SOURCE set equal to 600, there should be no need to define
_POSIX_C_SOURCE if _XOPEN_SOURCE is so defined. Therefore, if _XOPEN_SOURCE is
set equal to 600 and _POSIX_C_SOURCE is set equal to 200112L, the behavior is
the same as if only _XOPEN_SOURCE is defined and set equal to 600. However,
should _POSIX_C_SOURCE be set to a value greater than 200112L, the behavior is
unspecified
Comment 1 Andrew Josey 2004-07-23 16:30:59 UTC 
Created attachment 141 [details]
Test program
Comment 2 GOTO Masanori 2004-07-24 16:44:06 UTC 
Hi,
Andrew, I checked your program and it can be compiled with the latest cvs.
Comment 3 Sourceware Commits 2005-02-17 01:11:15 UTC 
Subject: Bug 284

CVSROOT:	/cvs/glibc
Module name:	libc
Changes by:	roland@sources.redhat.com	2005-02-17 01:11:00

Modified files:
	include        : features.h 

Log message:
	2004-07-23  Jakub Jelinek  <jakub@redhat.com>
	
	[BZ #284]
	* include/features.h (_POSIX_SOURCE, _POSIX_C_SOURCE): Define
	if _XOPEN_SOURCE >= 500 even if __STRICT_ANSI__ is defined.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/include/features.h.diff?cvsroot=glibc&r1=1.37&r2=1.38
Comment 4 Sourceware Commits 2005-02-18 00:09:12 UTC 
Subject: Bug 284

CVSROOT:	/cvs/glibc
Module name:	libc
Branch: 	glibc-2_3-branch
Changes by:	roland@sources.redhat.com	2005-02-18 00:08:58

Modified files:
	include        : features.h 

Log message:
	2004-07-23  Jakub Jelinek  <jakub@redhat.com>
	
	[BZ #284]
	* include/features.h (_POSIX_SOURCE, _POSIX_C_SOURCE): Define
	if _XOPEN_SOURCE >= 500 even if __STRICT_ANSI__ is defined.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/include/features.h.diff?cvsroot=glibc&only_with_tag=glibc-2_3-branch&r1=1.36&r2=1.36.2.1