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Porting/Glossary  view on Meta::CPAN

	This variable conditionally defines the HAS_SCALBNL symbol, which
	indicates to the C program that the scalbnl() routine is available.
	If ilogbl is also present we can emulate frexpl.

d_sched_yield (d_pthread_y.U):
	This variable conditionally defines the HAS_SCHED_YIELD
	symbol if the sched_yield routine is available to yield
	the execution of the current thread.

d_scm_rights (d_socket.U):
	This variable conditionally defines the HAS_SCM_RIGHTS symbol,
	which indicates that the SCM_RIGHTS is available.  #ifdef is
	not enough because it may be an enum, glibc has been known to do this.

d_SCNfldbl (longdblfio.U):
	This variable conditionally defines the PERL_PRIfldbl symbol, which
	indicates that stdio has a symbol to scan long doubles.

d_seekdir (d_readdir.U):
	This variable conditionally defines HAS_SEEKDIR if seekdir() is
	available.

d_select (d_select.U):
	This variable conditionally defines HAS_SELECT if select() is
	available to select active file descriptors. A <sys/time.h>
	inclusion may be necessary for the timeout field.

d_sem (d_sem.U):
	This variable conditionally defines the HAS_SEM symbol, which
	indicates that the entire sem*(2) library is present.

d_semctl (d_semctl.U):
	This variable conditionally defines the HAS_SEMCTL symbol, which
	indicates to the C program that the semctl() routine is available.

d_semctl_semid_ds (d_union_semun.U):
	This variable conditionally defines USE_SEMCTL_SEMID_DS, which
	indicates that struct semid_ds * is to be used for semctl IPC_STAT.

d_semctl_semun (d_union_semun.U):
	This variable conditionally defines USE_SEMCTL_SEMUN, which
	indicates that union semun is to be used for semctl IPC_STAT.

d_semget (d_semget.U):
	This variable conditionally defines the HAS_SEMGET symbol, which
	indicates to the C program that the semget() routine is available.

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
	to change the effective gid of the current program.

d_setenv (d_setenv.U):
	This variable conditionally defines the HAS_SETENV symbol, which
	indicates to the C program that the setenv routine is available.

d_seteuid (d_seteuid.U):
	This variable conditionally defines the HAS_SETEUID symbol, which
	indicates to the C program that the seteuid() routine is available
	to change the effective uid of the current program.

d_setgrent (d_setgrent.U):
	This variable conditionally defines the HAS_SETGRENT symbol, which
	indicates to the C program that the setgrent() routine is available
	for initializing sequential access to the group database.

d_setgrent_r (d_setgrent_r.U):
	This variable conditionally defines the HAS_SETGRENT_R symbol,
	which indicates to the C program that the setgrent_r()
	routine is available.

d_setgrps (d_setgrps.U):
	This variable conditionally defines the HAS_SETGROUPS symbol, which
	indicates to the C program that the setgroups() routine is available
	to set the list of process groups.

d_sethent (d_sethent.U):
	This variable conditionally defines HAS_SETHOSTENT if sethostent() is
	available.

d_sethostent_r (d_sethostent_r.U):
	This variable conditionally defines the HAS_SETHOSTENT_R symbol,
	which indicates to the C program that the sethostent_r()
	routine 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
	to change stderr or stdout from block-buffered or unbuffered to a
	line-buffered mode.

d_setlocale (d_setlocale.U):
	This variable conditionally defines HAS_SETLOCALE if setlocale() is
	available to handle locale-specific ctype implementations.

d_setlocale_accepts_any_locale_name (d_setlocale.U):
	This variable conditionally defines SETLOCALE_ACCEPTS_ANY_LOCALE_NAME
	if setlocale() accepts any locale name.

d_setlocale_r (d_setlocale_r.U):
	This variable conditionally defines the HAS_SETLOCALE_R symbol,
	which indicates to the C program that the setlocale_r()
	routine is available.

d_setnent (d_setnent.U):
	This variable conditionally defines HAS_SETNETENT if setnetent() is
	available.

d_setnetent_r (d_setnetent_r.U):
	This variable conditionally defines the HAS_SETNETENT_R symbol,
	which indicates to the C program that the setnetent_r()

Porting/Glossary  view on Meta::CPAN

	indicates to the C program that the towlower() routine is available.

d_towupper (d_towupper.U):
	This variable conditionally defines the HAS_TOWUPPER symbol, which
	indicates to the C program that the towupper() routine is available.

d_trunc (d_trunc.U):
	This variable conditionally defines the HAS_TRUNC symbol, which
	indicates to the C program that the trunc() routine is available
	to round doubles towards zero.

d_truncate (d_truncate.U):
	This variable conditionally defines HAS_TRUNCATE if truncate() is
	available to truncate files.

d_truncl (d_truncl.U):
	This variable conditionally defines the HAS_TRUNCL symbol, which
	indicates to the C program that the truncl() routine is available
	to round long doubles towards zero. If copysignl is also present,
	we can emulate modfl.

d_ttyname_r (d_ttyname_r.U):
	This variable conditionally defines the HAS_TTYNAME_R symbol,
	which indicates to the C program that the ttyname_r()
	routine is available.

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.
	to set and get the value of the file creation mask.

d_uname (d_gethname.U):
	This variable conditionally defines the HAS_UNAME symbol, which
	indicates to the C program that the uname() routine may be
	used to derive the host name.

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_unlinkat (d_fsat.U):
	This variable conditionally defines the HAS_UNLINKAT symbol, which
	indicates the POSIX unlinkat() function isavailable.

d_unordered (d_unordered.U):
	This variable conditionally defines the HAS_UNORDERED symbol, which
	indicates to the C program that the unordered() routine is available.

d_unsetenv (d_unsetenv.U):
	This variable conditionally defines the HAS_UNSETENV symbol, which
	indicates to the C program that the unsetenv () routine is available.

d_uselocale (d_newlocale.U):
	This variable conditionally defines the HAS_USELOCALE symbol, which
	indicates to the C program that the uselocale() routine is available
	to set the current locale for the calling thread.

d_usleep (d_usleep.U):
	This variable conditionally defines HAS_USLEEP if usleep() is
	available to do high granularity sleeps.

d_usleepproto (d_usleepproto.U):
	This variable conditionally defines the HAS_USLEEP_PROTO symbol,
	which indicates to the C program that the system provides
	a prototype for the usleep() function.  Otherwise, it is
	up to the program to supply one.

d_ustat (d_ustat.U):
	This variable conditionally defines HAS_USTAT if ustat() is
	available to query file system statistics by dev_t.

d_vendorarch (vendorarch.U):
	This variable conditionally defined PERL_VENDORARCH.

d_vendorbin (vendorbin.U):
	This variable conditionally defines PERL_VENDORBIN.

d_vendorlib (vendorlib.U):
	This variable conditionally defines PERL_VENDORLIB.

d_vendorscript (vendorscript.U):
	This variable conditionally defines PERL_VENDORSCRIPT.

d_vfork (d_vfork.U):
	This variable conditionally defines the HAS_VFORK symbol, which
	indicates the vfork() routine is available.

d_void_closedir (d_closedir.U):
	This variable conditionally defines VOID_CLOSEDIR if closedir()
	does not return a value.

d_voidsig (d_voidsig.U):
	This variable conditionally defines VOIDSIG if this system
	declares "void (*signal(...))()" in signal.h.  The old way was to
	declare it as "int (*signal(...))()".

d_voidtty (i_sysioctl.U):
	This variable conditionally defines USE_IOCNOTTY to indicate that the
	ioctl() call with TIOCNOTTY should be used to void tty association.
	Otherwise (on USG probably), it is enough to close the standard file
	descriptors and do a setpgrp().

d_vsnprintf (d_snprintf.U):
	This variable conditionally defines the HAS_VSNPRINTF symbol, which
	indicates to the C program that the vsnprintf () library function
	is available.

d_wait4 (d_wait4.U):
	This variable conditionally defines the HAS_WAIT4 symbol, which
	indicates the wait4() routine is available.