conformtest: Correct some unistd.h expectations for XPG3, XPG4.

The conformtest tests of unistd.h fail for XPG3 because of various
expectations that are incorrect for XPG3.  This patch corrects those
bogus expectations, and one bogus expectation for XPG4.  (This is not
based on a full review of the standards so there may well still be
other bugs in the expectations for this header.)

Tested for x86_64 and x86.

	* conform/data/unistd.h-data (F_LOCK): Do not expect for [XPG3].
	(F_ULOCK): Likewise.
	(F_TEST): Likewise.
	(F_TLOCK): Likewise.
	(useconds_t): Likewise.
	(intptr_t): Do not expect for [XPG3] or [XPG4].
	(brk): Do not expect for [XPG3]
	(fchown): Likewise.
	(fchdir): Likewise.
	(ftruncate): Likewise.
	(getdtablesize): Likewise.
	(gethostid): Likewise.
	(getpagesize): Likewise.
	(getpgid): Likewise.
	(getsid): Likewise.
	(getwd): Likewise.
	(lchown): Likewise.
	(lockf): Likewise.
	(readlink): Likewise.
	(sbrk): Likewise.
	(setpgrp): Likewise.
	(setregid): Likewise.
	(setreuid): Likewise.
	(symlink): Likewise.
	(sync): Likewise.
	(truncate): Likewise.
	(ualarm): Likewise.
	(usleep): Likewise.
	(vfork): Likewise.
	* conform/Makefile (test-xfail-XPG3/unistd.h/conform): Remove
	variable.

3 files changed, 59 insertions, 22 deletions

diff --git a/ChangeLog b/ChangeLog
index fe723a609b..8a3bb1fde8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,37 @@
 2016-05-12  Joseph Myers  <joseph@codesourcery.com>
 
+	* conform/data/unistd.h-data (F_LOCK): Do not expect for [XPG3].
+	(F_ULOCK): Likewise.
+	(F_TEST): Likewise.
+	(F_TLOCK): Likewise.
+	(useconds_t): Likewise.
+	(intptr_t): Do not expect for [XPG3] or [XPG4].
+	(brk): Do not expect for [XPG3]
+	(fchown): Likewise.
+	(fchdir): Likewise.
+	(ftruncate): Likewise.
+	(getdtablesize): Likewise.
+	(gethostid): Likewise.
+	(getpagesize): Likewise.
+	(getpgid): Likewise.
+	(getsid): Likewise.
+	(getwd): Likewise.
+	(lchown): Likewise.
+	(lockf): Likewise.
+	(readlink): Likewise.
+	(sbrk): Likewise.
+	(setpgrp): Likewise.
+	(setregid): Likewise.
+	(setreuid): Likewise.
+	(symlink): Likewise.
+	(sync): Likewise.
+	(truncate): Likewise.
+	(ualarm): Likewise.
+	(usleep): Likewise.
+	(vfork): Likewise.
+	* conform/Makefile (test-xfail-XPG3/unistd.h/conform): Remove
+	variable.
+
 	[BZ #20054]
 	* posix/unistd.h (gethostname): Declare if [__USE_XOPEN_EXTENDED],
 	not [__USE_UNIX98].
diff --git a/conform/Makefile b/conform/Makefile
index b5a1ee86b1..9aa79559d3 100644
--- a/conform/Makefile
+++ b/conform/Makefile
@@ -172,7 +172,6 @@ test-xfail-XPG3/stdlib.h/conform = yes
 test-xfail-XPG3/string.h/conform = yes
 test-xfail-XPG3/sys/wait.h/conform = yes
 test-xfail-XPG3/time.h/conform = yes
-test-xfail-XPG3/unistd.h/conform = yes
 test-xfail-XPG4/arpa/inet.h/conform = yes
 test-xfail-XPG4/netdb.h/conform = yes
 test-xfail-XPG4/netinet/in.h/conform = yes
diff --git a/conform/data/unistd.h-data b/conform/data/unistd.h-data
index 5958ff700c..3047654eb0 100644
--- a/conform/data/unistd.h-data
+++ b/conform/data/unistd.h-data
@@ -375,7 +375,7 @@ constant _SC_THREAD_ROBUST_PRIO_INHERIT
 constant _SC_THREAD_ROBUST_PRIO_PROTECT
 #endif
 
-#if !defined POSIX && !defined POSIX2008
+#if !defined XPG3 && !defined POSIX && !defined POSIX2008
 constant F_LOCK
 constant F_ULOCK
 constant F_TEST
@@ -417,15 +417,17 @@ type off_t
 type pid_t
 #endif
 
-#if !defined POSIX
+#if !defined POSIX && !defined XPG3
 type useconds_t
 
+# ifndef XPG4
 type intptr_t
+# endif
 #endif
 
 function int access (const char*, int)
 function {unsigned int} alarm (unsigned int)
-#if !defined XOPEN2K && !defined XOPEN2K8 && !defined POSIX && !defined POSIX2008
+#if !defined XOPEN2K && !defined XOPEN2K8 && !defined XPG3 && !defined POSIX && !defined POSIX2008
 function int brk (void*)
 #endif
 function int chdir (const char*)
@@ -460,13 +462,13 @@ function void _exit (int)
 # if defined XOPEN2K8 || defined POSIX2008
 function int faccessat (int, const char*, int, int)
 # endif
-#if !defined POSIX
+#if !defined XPG3 && !defined POSIX
 function int fchown (int, uid_t, gid_t)
 #endif
 # if defined XOPEN2K8 || defined POSIX2008
 function int fchownat (int, const char*, uid_t, gid_t, int)
 # endif
-#ifndef POSIX
+#if !defined XPG3 && !defined POSIX
 function int fchdir (int)
 #endif
 #if !defined XPG3 && !defined XPG4
@@ -478,16 +480,18 @@ function int fexecve (int, char *const[], char *const[])
 function pid_t fork (void)
 function {long int} fpathconf (int, int)
 function int fsync (int)
+#ifndef XPG3
 function int ftruncate (int, off_t)
+#endif
 function {char*} getcwd (char*, size_t)
-#if !defined XOPEN2K && !defined XOPEN2K8 && !defined POSIX && !defined POSIX2008
+#if !defined XOPEN2K && !defined XOPEN2K8 && !defined XPG3 && !defined POSIX && !defined POSIX2008
 function int getdtablesize (void)
 #endif
 function gid_t getegid (void)
 function uid_t geteuid (void)
 function gid_t getgid (void)
 function int getgroups (int, gid_t[])
-#if !defined POSIX && !defined POSIX2008
+#if !defined XPG3 && !defined POSIX && !defined POSIX2008
 function long gethostid (void)
 #endif
 #if !defined POSIX && !defined XPG3
@@ -498,32 +502,34 @@ function {char*} getlogin (void)
 function int getlogin_r (char*, size_t)
 #endif
 function int getopt (int, char*const[], const char*)
-#if defined XPG3 || defined XPG4 || defined UNIX98
+#if defined XPG4 || defined UNIX98
 function int getpagesize (void)
+#endif
+#if defined XPG3 || defined XPG4 || defined UNIX98
 function {char*} getpass (const char*)
 #endif
-#ifndef POSIX
+#if !defined XPG3 && !defined POSIX
 function pid_t getpgid (pid_t)
 #endif
 function pid_t getpgrp (void)
 function pid_t getpid (void)
 function pid_t getppid (void)
-#ifndef POSIX
+#if !defined XPG3 && !defined POSIX
 function pid_t getsid (pid_t)
 #endif
 function uid_t getuid (void)
-#if defined XPG3 || defined XPG4 || defined UNIX98 || defined XOPEN2K
+#if defined XPG4 || defined UNIX98 || defined XOPEN2K
 function {char*} getwd (char*)
 #endif
 function int isatty (int)
-#ifndef POSIX
+#if !defined XPG3 && !defined POSIX
 function int lchown (const char*, uid_t, gid_t)
 #endif
 function int link (const char*, const char*)
 # if defined XOPEN2K8 || defined POSIX2008
 function int linkat (int, const char*, int, const char*, int)
 # endif
-# if !defined POSIX && !defined POSIX2008
+# if !defined XPG3 && !defined POSIX && !defined POSIX2008
 function int lockf (int, int, off_t)
 # endif
 function off_t lseek (int, off_t, int)
@@ -543,14 +549,14 @@ function int pthread_atfork (void(*)(void), void(*)(void), void(*)(void))
 function ssize_t pwrite (int, const void*, size_t, off_t)
 #endif
 function ssize_t read (int, void*, size_t)
-#ifndef POSIX
+#if !defined XPG3 && !defined POSIX
 function ssize_t readlink (const char*, char*, size_t)
 #endif
 # if defined XOPEN2K8 || defined POSIX2008
 function ssize_t readlinkat (int, const char*, char*, size_t)
 # endif
 function int rmdir (const char*)
-#if !defined XOPEN2K && !defined XOPEN2K8 && !defined POSIX && !defined POSIX2008
+#if !defined XOPEN2K && !defined XOPEN2K8 && !defined XPG3 && !defined POSIX && !defined POSIX2008
 function {void*} sbrk (intptr_t)
 #endif
 #if !defined POSIX && !defined XPG3 && !defined XPG4 && !defined UNIX98
@@ -559,7 +565,7 @@ function int seteuid (uid_t)
 #endif
 function int setgid (gid_t)
 function int setpgid (pid_t, pid_t)
-# if !defined POSIX && !defined POSIX2008
+# if !defined XPG3 && !defined POSIX && !defined POSIX2008
 function pid_t setpgrp (void)
 function int setregid (gid_t, gid_t)
 function int setreuid (uid_t, uid_t)
@@ -570,31 +576,31 @@ function {unsigned int} sleep (unsigned int)
 # if !defined POSIX && !defined POSIX2008
 function void swab (const void*, void*, ssize_t)
 # endif
-#ifndef POSIX
+#if !defined XPG3 && !defined POSIX
 function int symlink (const char*, const char*)
 # endif
 # if defined XOPEN2K8 || defined POSIX2008
 function int symlinkat (const char*, int, const char*)
 # endif
-# if !defined POSIX && !defined POSIX2008
+# if !defined XPG3 && !defined POSIX && !defined POSIX2008
 function void sync (void)
 # endif
 function {long int} sysconf (int)
 function pid_t tcgetpgrp (int)
 function int tcsetpgrp (int, pid_t)
-#ifndef POSIX
+#if !defined XPG3 && !defined POSIX
 function int truncate (const char*, off_t)
 #endif
 function {char*} ttyname (int)
 function int ttyname_r (int, char*, size_t)
-#if defined XPG3 || defined XPG4 || defined UNIX98 || defined XOPEN2K
+#if defined XPG4 || defined UNIX98 || defined XOPEN2K
 function useconds_t ualarm (useconds_t, useconds_t)
 #endif
 function int unlink (const char*)
 # if defined XOPEN2K8 || defined POSIX2008
 function int unlinkat (int, const char*, int)
 # endif
-#if defined XPG3 || defined XPG4 || defined UNIX98 || defined XOPEN2K
+#if defined XPG4 || defined UNIX98 || defined XOPEN2K
 function int usleep (useconds_t)
 function pid_t vfork (void)
 #endif