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Restore _POSIX2_C_VERSION definition (bug 438)
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Thu, 21 May 2015 18:03:32 +0000
- Subject: Restore _POSIX2_C_VERSION definition (bug 438)
- Authentication-results: sourceware.org; auth=none
My review of conformtest expectations for POSIX showed up that the
_POSIX2_C_VERSION macro, required by POSIX and XPG standards before
2001, was missing in unistd.h, having been removed on 2003-04-03
despite those standards still being supported. This patch adds it
back. As it's in the implementation namespace, there's no need for it
to be conditional, and other such macros aren't conditional in this
header either.
Tested for x86_64 and x86 (testsuite). Note that this *does* change
the installed libraries, because it affects the sysconf support
(present all along) for _SC_2_C_VERSION.
2015-05-21 Joseph Myers <joseph@codesourcery.com>
[BZ #438]
* posix/unistd.h (_POSIX2_C_VERSION): New macro.
* conform/Makefile (test-xfail-POSIX/unistd.h/conform): Remove
variable.
diff --git a/conform/Makefile b/conform/Makefile
index bdd7203..6d5dbcb 100644
--- a/conform/Makefile
+++ b/conform/Makefile
@@ -211,7 +211,6 @@ test-xfail-XPG4/termios.h/conform = yes
test-xfail-XPG4/ucontext.h/conform = yes
test-xfail-XPG4/unistd.h/conform = yes
test-xfail-XPG4/utmpx.h/conform = yes
-test-xfail-POSIX/unistd.h/conform = yes
test-xfail-POSIX/sys/wait.h/conform = yes
test-xfail-UNIX98/arpa/inet.h/conform = yes
test-xfail-UNIX98/fcntl.h/conform = yes
diff --git a/posix/unistd.h b/posix/unistd.h
index 80a5b86..1b52930 100644
--- a/posix/unistd.h
+++ b/posix/unistd.h
@@ -66,6 +66,9 @@ __BEGIN_DECLS
/* The utilities on GNU systems also correspond to this version. */
#define _POSIX2_VERSION __POSIX2_THIS_VERSION
+/* This symbol was required until the 2001 edition of POSIX. */
+#define _POSIX2_C_VERSION __POSIX2_THIS_VERSION
+
/* If defined, the implementation supports the
C Language Bindings Option. */
#define _POSIX2_C_BIND __POSIX2_THIS_VERSION
--
Joseph S. Myers
joseph@codesourcery.com