Introduce d_u32align / U32_REQUIRES_ALIGNMENT, needed for

ext/Digest/MD5/Makefile.PL and t/lib/md5-align.t.
Introduce probes for struct msghdr, struct cmsghdr,
sendmsg, recvmsg, readv, writev, setitimer, getitimer,
ualarm, usleep, for possible later extension work.

p4raw-id: //depot/perl@9560

3 files changed, 128 insertions, 6 deletions

diff --git a/Porting/Glossary b/Porting/Glossary
index 61a52c5489..d621d2fea1 100644
--- a/Porting/Glossary
+++ b/Porting/Glossary
@@ -437,6 +437,10 @@ d_closedir (d_closedir.U):
 	This variable conditionally defines HAS_CLOSEDIR if closedir() is
 	available.
 
+d_cmsghdr_s (d_cmsghdr_s.U):
+	This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol,
+	which indicates that the struct cmsghdr is supported.
+
 d_const (d_const.U):
 	This variable conditionally defines the HASCONST symbol, which
 	indicates to the C program that this C compiler knows about the
@@ -689,6 +693,10 @@ d_gethostprotos (d_gethostprotos.U):
 	prototypes for the various gethost*() functions.  
 	See also netdbtype.U for probing for various netdb types.
 
+d_getitimer (d_getitimer.U):
+	This variable conditionally defines the HAS_GETITIMER symbol, which
+	indicates to the C program that the getitimer() routine is available.
+
 d_getlogin (d_getlogin.U):
 	This variable conditionally defines the HAS_GETLOGIN symbol, which
 	indicates to the C program that the getlogin() routine is available
@@ -1024,6 +1032,10 @@ d_msgget (d_msgget.U):
 	This variable conditionally defines the HAS_MSGGET symbol, which
 	indicates to the C program that the msgget() routine is available.
 
+d_msghdr_s (d_msghdr_s.U):
+	This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
+	which indicates that the struct msghdr is supported.
+
 d_msgrcv (d_msgrcv.U):
 	This variable conditionally defines the HAS_MSGRCV symbol, which
 	indicates to the C program that the msgrcv() routine is available.
@@ -1226,6 +1238,14 @@ d_readlink (d_readlink.U):
 	indicates to the C program that the readlink() routine is available
 	to read the value of a symbolic link.
 
+d_readv (d_readv.U):
+	This variable conditionally defines the HAS_READV symbol, which
+	indicates to the C program that the readv() routine is available.
+
+d_recvmsg (d_recvmsg.U):
+	This variable conditionally defines the HAS_RECVMSG symbol, which
+	indicates to the C program that the recvmsg() routine is available.
+
 d_rename (d_rename.U):
 	This variable conditionally defines the HAS_RENAME symbol, which
 	indicates to the C program that the rename() routine is available
@@ -1305,6 +1325,10 @@ d_semop (d_semop.U):
 	This variable conditionally defines the HAS_SEMOP symbol, which
 	indicates to the C program that the semop() routine is available.
 
+d_sendmsg (d_sendmsg.U):
+	This variable conditionally defines the HAS_SENDMSG symbol, which
+	indicates to the C program that the sendmsg() routine is available.
+
 d_setegid (d_setegid.U):
 	This variable conditionally defines the HAS_SETEGID symbol, which
 	indicates to the C program that the setegid() routine is available
@@ -1329,6 +1353,10 @@ d_sethent (d_sethent.U):
 	This variable conditionally defines HAS_SETHOSTENT if sethostent() is
 	available.
 
+d_setitimer (d_setitimer.U):
+	This variable conditionally defines the HAS_SETITIMER symbol, which
+	indicates to the C program that the setitimer() routine is available.
+
 d_setlinebuf (d_setlnbuf.U):
 	This variable conditionally defines the HAS_SETLINEBUF symbol, which
 	indicates to the C program that the setlinebuf() routine is available
@@ -1663,6 +1691,14 @@ d_tzname (d_tzname.U):
 	This variable conditionally defines HAS_TZNAME if tzname[] is
 	available to access timezone names.
 
+d_u32align (d_u32align.U):
+	This variable tells whether you must access character data
+	through U32-aligned pointers.
+
+d_ualarm (d_ualarm.U):
+	This variable conditionally defines the HAS_UALARM symbol, which
+	indicates to the C program that the ualarm() routine is available.
+
 d_umask (d_umask.U):
 	This variable conditionally defines the HAS_UMASK symbol, which
 	indicates to the C program that the umask() routine is available.
@@ -1677,6 +1713,10 @@ d_union_semun (d_union_semun.U):
 	This variable conditionally defines HAS_UNION_SEMUN if the
 	union semun is defined by including <sys/sem.h>.
 
+d_usleep (d_usleep.U):
+	This variable conditionally defines HAS_USLEEP if usleep() is
+	available to do high granularity sleeps.
+
 d_ustat (d_ustat.U):
 	This variable conditionally defines HAS_USTAT if ustat() is
 	available to query file system statistics by dev_t.
@@ -1737,6 +1777,10 @@ d_wctomb (d_wctomb.U):
 	indicates to the C program that the wctomb() routine is available
 	to convert a wide character to a multibyte.
 
+d_writev (d_writev.U):
+	This variable conditionally defines the HAS_WRITEV symbol, which
+	indicates to the C program that the writev() routine is available.
+
 d_xenix (Guess.U):
 	This variable conditionally defines the symbol XENIX, which alerts
 	the C program that it runs under Xenix.
diff --git a/Porting/config.sh b/Porting/config.sh
index 3853ffbaf7..1e09d64ee5 100644
--- a/Porting/config.sh
+++ b/Porting/config.sh
@@ -8,7 +8,7 @@
 
 # Package name      : perl5
 # Source directory  : .
-# Configuration time: Tue Mar 27 07:55:38 EET DST 2001
+# Configuration time: Thu Apr  5 20:36:09 EET DST 2001
 # Configured by     : jhi
 # Target system     : osf1 alpha.hut.fi v4.0 878 alpha 
 
@@ -62,7 +62,7 @@ ccsymbols='__alpha=1 __LANGUAGE_C__=1 __osf__=1 __unix__=1 _LONGLONG=1 _SYSTYPE_
 ccversion='V5.6-082'
 cf_by='jhi'
 cf_email='yourname@yourhost.yourplace.com'
-cf_time='Tue Mar 27 07:55:38 EET DST 2001'
+cf_time='Thu Apr  5 20:36:09 EET DST 2001'
 charsize='1'
 chgrp=''
 chmod=''
@@ -121,6 +121,7 @@ d_chown='define'
 d_chroot='define'
 d_chsize='undef'
 d_closedir='define'
+d_cmsghdr_s='define'
 d_const='define'
 d_crypt='define'
 d_csh='define'
@@ -175,6 +176,7 @@ d_gethbyname='define'
 d_gethent='define'
 d_gethname='define'
 d_gethostprotos='define'
+d_getitimer='define'
 d_getlogin='define'
 d_getmnt='undef'
 d_getmntent='undef'
@@ -247,6 +249,7 @@ d_msg_peek='define'
 d_msg_proxy='undef'
 d_msgctl='define'
 d_msgget='define'
+d_msghdr_s='define'
 d_msgrcv='define'
 d_msgsnd='define'
 d_msync='define'
@@ -280,6 +283,8 @@ d_qgcvt='undef'
 d_quad='define'
 d_readdir='define'
 d_readlink='define'
+d_readv='define'
+d_recvmsg='define'
 d_rename='define'
 d_rewinddir='define'
 d_rmdir='define'
@@ -297,11 +302,13 @@ d_semctl_semid_ds='define'
 d_semctl_semun='define'
 d_semget='define'
 d_semop='define'
+d_sendmsg='define'
 d_setegid='define'
 d_seteuid='define'
 d_setgrent='define'
 d_setgrps='define'
 d_sethent='define'
+d_setitimer='define'
 d_setlinebuf='define'
 d_setlocale='define'
 d_setnent='define'
@@ -377,9 +384,12 @@ d_time='define'
 d_times='define'
 d_truncate='define'
 d_tzname='define'
+d_u32align='define'
+d_ualarm='define'
 d_umask='define'
 d_uname='define'
 d_union_semun='undef'
+d_usleep='define'
 d_ustat='define'
 d_vendorarch='undef'
 d_vendorbin='undef'
@@ -394,6 +404,7 @@ d_wait4='define'
 d_waitpid='define'
 d_wcstombs='define'
 d_wctomb='define'
+d_writev='define'
 d_xenix='undef'
 date='date'
 db_hashtype='u_int32_t'
@@ -404,7 +415,7 @@ dlext='so'
 dlsrc='dl_dlopen.xs'
 doublesize='8'
 drand01='drand48()'
-dynamic_ext='B ByteLoader DB_File Data/Dumper Devel/DProf Devel/Peek Digest/MD5 Encode Fcntl File/Glob Filter/Util/Call IO IPC/SysV MIME/Base64 NDBM_File ODBM_File Opcode POSIX PerlIO/Scalar SDBM_File Socket Storable Sys/Hostname Sys/Syslog Thread attrs re'
+dynamic_ext='B ByteLoader Cwd DB_File Data/Dumper Devel/DProf Devel/Peek Digest/MD5 Encode Fcntl File/Glob Filter/Util/Call IO IPC/SysV MIME/Base64 NDBM_File ODBM_File Opcode POSIX PerlIO/Scalar PerlIO/Via SDBM_File Socket Storable Sys/Hostname Sys/Syslog Thread XS/Typemap attrs re'
 eagain='EAGAIN'
 ebcdic='undef'
 echo='echo'
@@ -413,7 +424,7 @@ emacs=''
 eunicefix=':'
 exe_ext=''
 expr='expr'
-extensions='B ByteLoader DB_File Data/Dumper Devel/DProf Devel/Peek Digest/MD5 Encode Fcntl File/Glob Filter/Util/Call IO IPC/SysV MIME/Base64 NDBM_File ODBM_File Opcode POSIX PerlIO/Scalar SDBM_File Socket Storable Sys/Hostname Sys/Syslog Thread attrs re Errno'
+extensions='B ByteLoader Cwd DB_File Data/Dumper Devel/DProf Devel/Peek Digest/MD5 Encode Fcntl File/Glob Filter/Util/Call IO IPC/SysV MIME/Base64 NDBM_File ODBM_File Opcode POSIX PerlIO/Scalar PerlIO/Via SDBM_File Socket Storable Sys/Hostname Sys/Syslog Thread XS/Typemap attrs re Errno'
 fflushNULL='define'
 fflushall='undef'
 find=''
@@ -553,7 +564,7 @@ issymlink='test -h'
 ivdformat='"ld"'
 ivsize='8'
 ivtype='long'
-known_extensions='B ByteLoader DB_File Data/Dumper Devel/DProf Devel/Peek Digest/MD5 Encode Fcntl File/Glob Filter/Util/Call GDBM_File IO IPC/SysV MIME/Base64 NDBM_File ODBM_File Opcode POSIX PerlIO/Scalar SDBM_File Socket Storable Sys/Hostname Sys/Syslog Thread attrs re'
+known_extensions='B ByteLoader Cwd DB_File Data/Dumper Devel/DProf Devel/Peek Digest/MD5 Encode Fcntl File/Glob Filter/Util/Call GDBM_File IO IPC/SysV MIME/Base64 NDBM_File ODBM_File Opcode POSIX PerlIO/Scalar PerlIO/Via SDBM_File Socket Storable Sys/Hostname Sys/Syslog Thread XS/Typemap attrs re'
 ksh=''
 ld='ld'
 lddlflags='-shared -expect_unresolved "*" -msym -std -s'
diff --git a/Porting/config_H b/Porting/config_H
index fb8bf3b96d..5c1db5099d 100644
--- a/Porting/config_H
+++ b/Porting/config_H
@@ -17,7 +17,7 @@
 /*
  * Package name      : perl5
  * Source directory  : .
- * Configuration time: Tue Mar 27 07:55:38 EET DST 2001
+ * Configuration time: Thu Apr  5 20:36:09 EET DST 2001
  * Configured by     : jhi
  * Target system     : osf1 alpha.hut.fi v4.0 878 alpha 
  */
@@ -645,6 +645,12 @@
  */
 #define HAS_UMASK		/**/
 
+/* HAS_USLEEP:
+ *	This symbol, if defined, indicates that the usleep routine is
+ *	available to let the process sleep on a sub-second accuracy.
+ */
+#define HAS_USLEEP		/**/
+
 /* HASVOLATILE:
  *	This symbol, if defined, indicates that this C compiler knows about
  *	the volatile declaration.
@@ -1241,6 +1247,12 @@
  */
 /*#define VOID_CLOSEDIR		/ **/
 
+/* HAS_STRUCT_CMSGHDR:
+ *	This symbol, if defined, indicates that the struct cmsghdr
+ *	is supported.
+ */
+#define HAS_STRUCT_CMSGHDR	/**/
+
 /* HAS_CSH:
  *	This symbol, if defined, indicates that the C-shell exists.
  */
@@ -1462,6 +1474,12 @@
  */
 #define	HAS_GETHOST_PROTOS	/**/
 
+/* HAS_GETITIMER:
+ *	This symbol, if defined, indicates that the getitimer routine is
+ *	available to return interval timers.
+ */
+#define HAS_GETITIMER		/**/
+
 /* HAS_GETMNT:
  *	This symbol, if defined, indicates that the getmnt routine is
  *	available to get filesystem mount info by filename.
@@ -1770,6 +1788,12 @@
  */
 #define HAS_MSG		/**/
 
+/* HAS_STRUCT_MSGHDR:
+ *	This symbol, if defined, indicates that the struct msghdr
+ *	is supported.
+ */
+#define HAS_STRUCT_MSGHDR	/**/
+
 /* HAS_OFF64_T:
  *	This symbol will be defined if the C compiler supports off64_t.
  */
@@ -1810,6 +1834,19 @@
 #define SCHED_YIELD	sched_yield()	/**/
 #define HAS_SCHED_YIELD	/**/
 
+/* HAS_READV:
+ *	This symbol, if defined, indicates that the readv routine is
+ *	available to do gather reads.  You will also need <sys/uio.h>
+ *	and there I_SYSUIO.
+ */
+#define HAS_READV		/**/
+
+/* HAS_RECVMSG:
+ *	This symbol, if defined, indicates that the recvmsg routine is
+ *	available to send structured socket messages.
+ */
+#define HAS_RECVMSG		/**/
+
 /* HAS_SAFE_BCOPY:
  *	This symbol, if defined, indicates that the bcopy routine is available
  *	to copy potentially overlapping memory blocks. Otherwise you should
@@ -1848,6 +1885,12 @@
  */
 #define HAS_SEM		/**/
 
+/* HAS_SENDMSG:
+ *	This symbol, if defined, indicates that the sendmsg routine is
+ *	available to send structured socket messages.
+ */
+#define HAS_SENDMSG		/**/
+
 /* HAS_SETGRENT:
  *	This symbol, if defined, indicates that the setgrent routine is
  *	available for initializing sequential access of the group database.
@@ -1867,6 +1910,12 @@
  */
 #define HAS_SETHOSTENT		/**/
 
+/* HAS_SETITIMER:
+ *	This symbol, if defined, indicates that the setitimer routine is
+ *	available to set interval timers.
+ */
+#define HAS_SETITIMER		/**/
+
 /* HAS_SETNETENT:
  *	This symbol, if defined, indicates that the setnetent() routine is
  *	available.
@@ -2202,6 +2251,12 @@
  */
 #define HAS_TIMES		/**/
 
+/* HAS_UALARM:
+ *	This symbol, if defined, indicates that the ualarm routine is
+ *	available to do alarms with microsecond granularity.
+ */
+#define HAS_UALARM		/**/
+
 /* HAS_UNION_SEMUN:
  *	This symbol, if defined, indicates that the union semun is
  *	defined by including <sys/sem.h>.  If not, the user code
@@ -2257,6 +2312,12 @@
 #define HAS_VPRINTF	/**/
 /*#define USE_CHAR_VSPRINTF 	/ **/
 
+/* HAS_WRITEV:
+ *	This symbol, if defined, indicates that the writev routine is
+ *	available to do scatter writes.
+ */
+#define HAS_WRITEV		/**/
+
 /* USE_DYNAMIC_LOADING:
  *	This symbol, if defined, indicates that dynamic loading of
  *	some sort is available.
@@ -3265,4 +3326,10 @@
  */
 /*#define HAS_SOCKATMARK		/ **/
 
+/* U32_ALIGNMENT_REQUIRED:
+ *	This symbol, if defined, indicates that you must access
+ *	character data through U32-aligned pointers.
+ */
+#define U32_ALIGNMENT_REQUIRED	/**/
+
 #endif