On Mon, Mar 21, 2005 at 08:42:11PM -0000, philippe. cote @ usherbrooke. ca
wrote:
> sv_rvweaken doesn't handle tied variables
>
> Proof :
>
> +-------------------------------------------------------------------------+
> Sample code
> +-------------------------------------------------------------------------+
> #!/usr/bin/perl
> use strict;
> use warnings;
> use Util::Monitor;
>
> use Scalar::Util qw(weaken);
> use Devel::Peek;
> {
> my (@a);
> $a[0] = [EMAIL PROTECTED];
> #tie @a, 'TestArray';
> Dump($a[0],1);
> weaken($a[0]);
> Dump($a[0],1);
> print "Leaving scope\n";
> }
> print "Scope left\n";
>
> package TestArray;
> use Tie::Array;
> use base 'Tie::StdArray';
>
> sub DESTROY { print "Monitor::TestArray::DESTROY : $_[0]\n"; }
I'm not really sure what you expect the effect of weakening a tied array
element should be. I suspect that in the general case doing this makes no
sense.
>
> 1;
>
> +-------------------------------------------------------------------------+
> Output without "tie @a, 'TestArray'"
> (Just to show you that weaken works without the tie)
> +-------------------------------------------------------------------------+
> SV = RV(0x81829c0) at 0x814127c
> REFCNT = 1
> FLAGS = (ROK)
> RV = 0x814e740
> SV = PVAV(0x81426cc) at 0x814e740
> REFCNT = 2
> FLAGS = (PADBUSY,PADMY)
> IV = 0
> NV = 0
> ARRAY = 0x8148888
> FILL = 0
> MAX = 3
> ARYLEN = 0x0
> FLAGS = (REAL)
> SV = RV(0x81829c0) at 0x814127c
> REFCNT = 1
> FLAGS = (ROK,WEAKREF,IsUV)
> RV = 0x814e740
> SV = PVAV(0x81426cc) at 0x814e740
> REFCNT = 1
> FLAGS = (PADBUSY,PADMY,RMG)
> IV = 0
> NV = 0
> MAGIC = 0x8266f08
> MG_VIRTUAL = &PL_vtbl_backref
> MG_TYPE = PERL_MAGIC_backref(<)
> MG_FLAGS = 0x02
> REFCOUNTED
> MG_OBJ = 0x81411c8
> SV = PVAV(0x8263704) at 0x81411c8
> REFCNT = 2
> FLAGS = ()
> IV = 0
> NV = 0
> ARRAY = 0x82677e8
> FILL = 0
> MAX = 3
> ARYLEN = 0x0
> FLAGS = (REAL)
> ARRAY = 0x8148888
> FILL = 0
> MAX = 3
> ARYLEN = 0x0
> FLAGS = (REAL)
> Leaving scope
> Scope left
>
> +-------------------------------------------------------------------------+
> Output with "tie @a, 'TestArray';"
> +-------------------------------------------------------------------------+
> SV = PVLV(0x817c568) at 0x81413f0
> REFCNT = 1
> FLAGS = (TEMP,GMG,SMG,RMG)
> IV = 0
> NV = 0
> PV = 0
> MAGIC = 0x81505b8
> MG_VIRTUAL = &PL_vtbl_packelem
> MG_TYPE = PERL_MAGIC_tiedelem(p)
> MG_FLAGS = 0x02
> REFCOUNTED
> MG_OBJ = 0x814139c
> SV = RV(0x81829ac) at 0x814139c
> REFCNT = 2
> FLAGS = (ROK)
> RV = 0x8141354
> TYPE = t
> TARGOFF = 0
> TARGLEN = 0
> TARG = 0x81413f0
> SV = PVLV(0x817c568) at 0x81413f0
> REFCNT = 1
> FLAGS = (TEMP,GMG,SMG,RMG)
> IV = 0
> NV = 0
> PV = 0
> MAGIC = 0x81505b8
> MG_VIRTUAL = &PL_vtbl_packelem
> MG_TYPE = PERL_MAGIC_tiedelem(p)
> MG_FLAGS = 0x02
> REFCOUNTED
> MG_OBJ = 0x814139c
> SV = RV(0x81829ac) at 0x814139c
> REFCNT = 2
> FLAGS = (ROK)
> RV = 0x8141354
> TYPE = t
> TARGOFF = 0
> TARGLEN = 0
> TARG = 0x81413f0
> Leaving scope
> Scope left
> Monitor::TestArray::DESTROY : TestArray=ARRAY(0x8141354)
>
> +-------------------------------------------------------------------------+
> Explanations
> +-------------------------------------------------------------------------+
> We see that weaken is not applied on a tied variable. I've been
> searching in source code and calls goes like this :
>
> Scalar::Util::weaken -> sv_rvweaken -> Perl_sv_rvweaken
>
> +-------------------------------------------------------------------------+
> Scalar::Util::weaken source code
> +-------------------------------------------------------------------------+
> void
> weaken(sv)
> SV *sv
> PROTOTYPE: $
> CODE:
> #ifdef SvWEAKREF
> sv_rvweaken(sv);
> #else
> croak("weak references are not implemented in this release of perl");
> #endif
>
> We see clearly that it only calls sv_rvweaken from the perl source code.
> So this method doesn't contain bugs.
> We also finds that sv_rvweaken is associated to Perl_sv_rvweaken as
> defined by embed.h
> Let's look at this code
>
> +-------------------------------------------------------------------------+
> Perl_sv_rvweaken source code from sv.c
> +-------------------------------------------------------------------------+
> /*
> =for apidoc sv_rvweaken
>
> Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the
> referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and
> push a back-reference to this RV onto the array of backreferences
> associated with that magic.
>
> =cut
> */
>
> SV *
> Perl_sv_rvweaken(pTHX_ SV *sv)
> {
> SV *tsv;
> if (!SvOK(sv)) /* let undefs pass */
> return sv;
> if (!SvROK(sv))
> Perl_croak(aTHX_ "Can't weaken a nonreference");
> else if (SvWEAKREF(sv)) {
> if (ckWARN(WARN_MISC))
> Perl_warner(aTHX_ packWARN(WARN_MISC), "Reference is
> already weak");
> return sv;
> }
> tsv = SvRV(sv);
> sv_add_backref(tsv, sv);
> SvWEAKREF_on(sv);
> SvREFCNT_dec(tsv);
> return sv;
> }
>
> +-------------------------------------------------------------------------+
> Conclusion
> +-------------------------------------------------------------------------+
> The bug is in Perl_sv_rvweaken there :
> if (!SvOK(sv)) /* let undefs pass */
> return sv;
> This code should be modified like this :
> if (!SvOK(sv)) /* undef var or tied object or something else */
> if (SvMAGIC(sv)) {
> //********************************************/
> //********************************************/
> //********************************************/
> //APPLY WEAKEN HERE (Which I don't know how)
> //********************************************/
> //********************************************/
> //********************************************/
> } else {
> return sv;
> }
> }
>
> Thank you
>
> Philippe Cote
> Centre de genomique fonctionnelle du Canada
>
> ---
> Flags:
> category=core
> severity=high
> ---
> Site configuration information for perl v5.8.6:
>
> Configured by Gentoo at Mon Feb 28 13:17:43 EST 2005.
>
> Summary of my perl5 (revision 5 version 8 subversion 6) configuration:
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> Locally applied patches:
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>
> ---
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> .
>
> ---
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> d_lockf='define'
> d_longdbl='define'
> d_longlong='define'
> d_lseekproto='define'
> d_lstat='define'
> d_madvise='define'
> d_mblen='define'
> d_mbstowcs='define'
> d_mbtowc='define'
> d_memchr='define'
> d_memcmp='define'
> d_memcpy='define'
> d_memmove='define'
> d_memset='define'
> d_mkdir='define'
> d_mkdtemp='define'
> d_mkfifo='define'
> d_mkstemp='define'
> d_mkstemps=''
> d_mktime='define'
> d_mmap='define'
> d_modfl='define'
> d_modfl_pow32_bug=''
> d_modflproto=''
> d_mprotect='define'
> d_msg='define'
> d_msg_ctrunc='define'
> d_msg_dontroute='define'
> d_msg_oob='define'
> d_msg_peek='define'
> d_msg_proxy='define'
> d_msgctl='define'
> d_msgget='define'
> d_msghdr_s='define'
> d_msgrcv='define'
> d_msgsnd='define'
> d_msync='define'
> d_munmap='define'
> d_mymalloc=''
> d_nice='define'
> d_nl_langinfo='define'
> d_nv_preserves_uv='define'
> d_off64_t=''
> d_old_pthread_create_joinable=''
> d_oldpthreads=''
> d_oldsock=''
> d_open3='define'
> d_pathconf='define'
> d_pause='define'
> d_perl_otherlibdirs=''
> d_phostname=''
> d_pipe='define'
> d_poll='define'
> d_portable='define'
> d_procselfexe='define'
> d_pthread_atfork='define'
> d_pthread_attr_setscope='define'
> d_pthread_yield='define'
> d_pwage=''
> d_pwchange=''
> d_pwclass=''
> d_pwcomment=''
> d_pwexpire=''
> d_pwgecos='define'
> d_pwpasswd='define'
> d_pwquota=''
> d_qgcvt='define'
> d_quad='define'
> d_random_r=''
> d_readdir='define'
> d_readdir64_r=''
> d_readdir_r=''
> d_readlink='define'
> d_readv='define'
> d_recvmsg='define'
> d_rename='define'
> d_rewinddir='define'
> d_rmdir='define'
> d_safebcpy=''
> d_safemcpy=''
> d_sanemcmp='define'
> d_sbrkproto='define'
> d_scalbnl='define'
> d_sched_yield='define'
> d_scm_rights='define'
> d_seekdir='define'
> d_select='define'
> d_sem='define'
> d_semctl='define'
> 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_setgrent_r=''
> d_setgrps='define'
> d_sethent='define'
> d_sethostent_r=''
> d_setitimer='define'
> d_setlinebuf='define'
> d_setlocale='define'
> d_setlocale_r=''
> d_setnent='define'
> d_setnetent_r=''
> d_setpent='define'
> d_setpgid='define'
> d_setpgrp='define'
> d_setpgrp2=''
> d_setprior='define'
> d_setproctitle=''
> d_setprotoent_r=''
> d_setpwent='define'
> d_setpwent_r=''
> d_setregid='define'
> d_setresgid='define'
> d_setresuid='define'
> d_setreuid='define'
> d_setrgid=''
> d_setruid=''
> d_setsent='define'
> d_setservent_r=''
> d_setsid='define'
> d_setvbuf='define'
> d_sfio=''
> d_shm='define'
> d_shmat='define'
> d_shmatprototype='define'
> d_shmctl='define'
> d_shmdt='define'
> d_shmget='define'
> d_sigaction='define'
> d_sigprocmask='define'
> d_sigsetjmp='define'
> d_sockatmark='define'
> d_sockatmarkproto=''
> d_socket='define'
> d_socklen_t='define'
> d_sockpair='define'
> d_socks5_init=''
> d_sqrtl='define'
> d_srand48_r=''
> d_srandom_r=''
> d_sresgproto=''
> d_sresuproto=''
> d_statblks='define'
> d_statfs_f_flags=''
> d_statfs_s='define'
> d_statvfs='define'
> d_stdio_cnt_lval=''
> d_stdio_ptr_lval=''
> d_stdio_ptr_lval_nochange_cnt=''
> d_stdio_ptr_lval_sets_cnt=''
> d_stdio_stream_array=''
> d_stdiobase=''
> d_stdstdio=''
> d_strchr='define'
> d_strcoll='define'
> d_strctcpy='define'
> d_strerrm='strerror(e)'
> d_strerror='define'
> d_strerror_r=''
> d_strftime='define'
> d_strtod='define'
> d_strtol='define'
> d_strtold='define'
> d_strtoll='define'
> d_strtoq='define'
> d_strtoul='define'
> d_strtoull='define'
> d_strtouq='define'
> d_strxfrm='define'
> d_suidsafe=''
> d_symlink='define'
> d_syscall='define'
> d_syscallproto='define'
> d_sysconf='define'
> d_sysernlst=''
> d_syserrlst='define'
> d_system='define'
> d_tcgetpgrp='define'
> d_tcsetpgrp='define'
> d_telldir='define'
> d_telldirproto='define'
> d_time='define'
> d_times='define'
> d_tm_tm_gmtoff='define'
> d_tm_tm_zone='define'
> d_tmpnam_r=''
> d_truncate='define'
> d_ttyname_r=''
> d_tzname='define'
> d_u32align=''
> d_ualarm='define'
> d_umask='define'
> d_uname='define'
> d_union_semun=''
> d_unordered=''
> d_usleep='define'
> d_usleepproto='define'
> d_ustat='define'
> d_vendorarch='define'
> d_vendorbin='define'
> d_vendorlib='define'
> d_vendorscript='define'
> d_vfork=''
> d_void_closedir=''
> d_voidsig='define'
> d_voidtty=''
> d_volatile='define'
> d_vprintf='define'
> d_wait4='define'
> d_waitpid='define'
> d_wcstombs='define'
> d_wctomb='define'
> d_writev='define'
> d_xenix=''
> date='date'
> db_hashtype='u_int32_t'
> db_prefixtype='size_t'
> db_version_major='4'
> db_version_minor='1'
> db_version_patch='25'
> defvoidused='15'
> direntrytype='struct dirent'
> dlext='so'
> dlsrc='dl_dlopen.xs'
> doublesize='8'
> drand01='drand48()'
> drand48_r_proto='0'
> dynamic_ext='B ByteLoader Cwd DB_File Data/Dumper Devel/DProf
> Devel/PPPort Devel/Peek Digest/MD5 Encode Fcntl File/Glob
> Filter/Util/Call GDBM_File I18N/Langinfo IO IPC/SysV List/Util
> MIME/Base64 NDBM_File Opcode POSIX PerlIO/encoding PerlIO/scalar
> PerlIO/via SDBM_File Socket Storable Sys/Hostname Sys/Syslog Time/HiRes
> Unicode/Normalize XS/APItest XS/Typemap attrs re threads threads/shared'
> eagain='EAGAIN'
> ebcdic=''
> echo='echo'
> egrep='egrep'
> emacs=''
> endgrent_r_proto='0'
> endhostent_r_proto='0'
> endnetent_r_proto='0'
> endprotoent_r_proto='0'
> endpwent_r_proto='0'
> endservent_r_proto='0'
> eunicefix=':'
> exe_ext=''
> expr='expr'
> extensions='B ByteLoader Cwd DB_File Data/Dumper Devel/DProf
> Devel/PPPort Devel/Peek Digest/MD5 Encode Fcntl File/Glob
> Filter/Util/Call GDBM_File I18N/Langinfo IO IPC/SysV List/Util
> MIME/Base64 NDBM_File Opcode POSIX PerlIO/encoding PerlIO/scalar
> PerlIO/via SDBM_File Socket Storable Sys/Hostname Sys/Syslog Time/HiRes
> Unicode/Normalize XS/APItest XS/Typemap attrs re threads threads/shared
> Errno'
> extras=''
> fflushNULL='define'
> fflushall=''
> find=''
> firstmakefile='makefile'
> flex=''
> fpossize='16'
> fpostype='fpos_t'
> freetype='void'
> from=':'
> full_ar='/usr/bin/ar'
> full_csh='/bin/csh'
> full_sed='/bin/sed'
> gccansipedantic=''
> gccosandvers=''
> gccversion='3.3.3 20040217 (Gentoo Linux 3.3.3, propolice-3.3-7)'
> getgrent_r_proto='0'
> getgrgid_r_proto='0'
> getgrnam_r_proto='0'
> gethostbyaddr_r_proto='0'
> gethostbyname_r_proto='0'
> gethostent_r_proto='0'
> getlogin_r_proto='0'
> getnetbyaddr_r_proto='0'
> getnetbyname_r_proto='0'
> getnetent_r_proto='0'
> getprotobyname_r_proto='0'
> getprotobynumber_r_proto='0'
> getprotoent_r_proto='0'
> getpwent_r_proto='0'
> getpwnam_r_proto='0'
> getpwuid_r_proto='0'
> getservbyname_r_proto='0'
> getservbyport_r_proto='0'
> getservent_r_proto='0'
> getspnam_r_proto='0'
> gidformat='"lu"'
> gidsign='1'
> gidsize='4'
> gidtype='gid_t'
> glibpth='/usr/shlib /lib /usr/lib /usr/lib/386 /lib/386 /usr/ccs/lib
> /usr/ucblib /usr/local/lib '
> gmake='gmake'
> gmtime_r_proto='0'
> gnulibc_version='2.3.3'
> grep='grep'
> groupcat='cat /etc/group'
> groupstype='gid_t'
> gzip='gzip'
> h_fcntl='false'
> h_sysfile='true'
> hint='recommended'
> hostcat='cat /etc/hosts'
> html1dir=' '
> html1direxp=''
> html3dir=' '
> html3direxp=''
> i16size='2'
> i16type='short'
> i32size='4'
> i32type='long'
> i64size='8'
> i64type='long long'
> i8size='1'
> i8type='char'
> i_arpainet='define'
> i_bsdioctl=''
> i_crypt='define'
> i_db='define'
> i_dbm=''
> i_dirent='define'
> i_dld=''
> i_dlfcn='define'
> i_fcntl=''
> i_float='define'
> i_fp=''
> i_fp_class=''
> i_gdbm='define'
> i_grp='define'
> i_ieeefp=''
> i_inttypes='define'
> i_langinfo='define'
> i_libutil=''
> i_limits='define'
> i_locale='define'
> i_machcthr=''
> i_malloc='define'
> i_math='define'
> i_memory=''
> i_mntent='define'
> i_ndbm='define'
> i_netdb='define'
> i_neterrno=''
> i_netinettcp='define'
> i_niin='define'
> i_poll='define'
> i_prot=''
> i_pthread='define'
> i_pwd='define'
> i_rpcsvcdbm=''
> i_sfio=''
> i_sgtty=''
> i_shadow='define'
> i_socks=''
> i_stdarg='define'
> i_stddef='define'
> i_stdlib='define'
> i_string='define'
> i_sunmath=''
> i_sysaccess=''
> i_sysdir='define'
> i_sysfile='define'
> i_sysfilio=''
> i_sysin=''
> i_sysioctl='define'
> i_syslog='define'
> i_sysmman='define'
> i_sysmode=''
> i_sysmount='define'
> i_sysndir=''
> i_sysparam='define'
> i_sysresrc='define'
> i_syssecrt=''
> i_sysselct='define'
> i_syssockio=''
> i_sysstat='define'
> i_sysstatfs='define'
> i_sysstatvfs='define'
> i_systime='define'
> i_systimek=''
> i_systimes='define'
> i_systypes='define'
> i_sysuio='define'
> i_sysun='define'
> i_sysutsname='define'
> i_sysvfs='define'
> i_syswait='define'
> i_termio=''
> i_termios='define'
> i_time='define'
> i_unistd='define'
> i_ustat='define'
> i_utime='define'
> i_values='define'
> i_varargs=''
> i_varhdr='stdarg.h'
> i_vfork=''
> ignore_versioned_solibs='y'
> inc_version_list='5.8.2 5.8.2/i686-linux 5.8.4 5.8.4/i686-linux 5.8.5
> 5.8.5/i686-linux '
> inc_version_list_init='"5.8.2","5.8.2/i686-linux","5.8.4","5.8.4/i686-linux","5.8.5","5.8.5/i686-linux",0'
> incpath=''
> inews=''
> installarchlib='/usr/lib/perl5/5.8.6/i686-linux'
> installbin='/usr/bin'
> installhtml1dir=''
> installhtml3dir=''
> installman1dir='/usr/share/man/man1'
> installman3dir='/usr/share/man/man3'
> installprefix='/usr'
> installprefixexp='/usr'
> installprivlib='/usr/lib/perl5/5.8.6'
> installscript='/usr/bin'
> installsitearch='/usr/lib/perl5/site_perl/5.8.6/i686-linux'
> installsitebin='/usr/bin'
> installsitehtml1dir=''
> installsitehtml3dir=''
> installsitelib='/usr/lib/perl5/site_perl/5.8.6'
> installsiteman1dir='/usr/share/man/man1'
> installsiteman3dir='/usr/share/man/man3'
> installsitescript='/usr/bin'
> installstyle='lib/perl5'
> installusrbinperl=''
> installvendorarch='/usr/lib/perl5/vendor_perl/5.8.6/i686-linux'
> installvendorbin='/usr/bin'
> installvendorhtml1dir=''
> installvendorhtml3dir=''
> installvendorlib='/usr/lib/perl5/vendor_perl/5.8.6'
> installvendorman1dir='/usr/share/man/man1'
> installvendorman3dir='/usr/share/man/man3'
> installvendorscript='/usr/bin'
> intsize='4'
> issymlink='test -h'
> ivdformat='"ld"'
> ivsize='4'
> ivtype='long'
> known_extensions='B ByteLoader Cwd DB_File Data/Dumper Devel/DProf
> Devel/PPPort Devel/Peek Digest/MD5 Encode Fcntl File/Glob
> Filter/Util/Call GDBM_File I18N/Langinfo IO IPC/SysV List/Util
> MIME/Base64 NDBM_File ODBM_File Opcode POSIX PerlIO/encoding
> PerlIO/scalar PerlIO/via SDBM_File Socket Storable Sys/Hostname
> Sys/Syslog Thread Time/HiRes Unicode/Normalize XS/APItest XS/Typemap
> attrs re threads threads/shared'
> ksh=''
> ld='gcc'
> lddlflags='-shared -L/usr/local/lib'
> ldflags=' -L/usr/local/lib'
> ldflags_uselargefiles=''
> ldlibpthname='LD_LIBRARY_PATH'
> less='less'
> lib_ext='.a'
> libc='/lib/libc-2.3.3.so'
> libperl='libperl.a'
> libpth='/usr/local/lib /lib /usr/lib'
> libs='-lpthread -lnsl -lndbm -lgdbm -ldb -ldl -lm -lcrypt -lutil -lc'
> libsdirs=' /usr/lib'
> libsfiles=' libpthread.so libnsl.so libndbm.so libgdbm.so libdb.so
> libdl.so libm.so libcrypt.so libutil.so libc.so'
> libsfound=' /usr/lib/libpthread.so /usr/lib/libnsl.so
> /usr/lib/libndbm.so /usr/lib/libgdbm.so /usr/lib/libdb.so
> /usr/lib/libdl.so /usr/lib/libm.so /usr/lib/libcrypt.so
> /usr/lib/libutil.so /usr/lib/libc.so'
> libspath=' /usr/local/lib /lib /usr/lib'
> libswanted='pthread sfio socket bind inet nsl nm ndbm gdbm dbm db malloc
> dl dld ld sun m crypt sec util c cposix posix ucb BSD'
> libswanted_uselargefiles=''
> line=''
> lint=''
> lkflags=''
> ln='ln'
> lns='/bin/ln -s'
> localtime_r_proto='0'
> locincpth=' '
> loclibpth='/usr/local/lib /opt/local/lib /usr/gnu/lib /opt/gnu/lib
> /usr/GNU/lib /opt/GNU/lib'
> longdblsize='12'
> longlongsize='8'
> longsize='4'
> lp=''
> lpr=''
> ls='ls'
> lseeksize='8'
> lseektype='off_t'
> mail=''
> mailx=''
> make='make'
> make_set_make='#'
> mallocobj=''
> mallocsrc=''
> malloctype='void *'
> man1dir='/usr/share/man/man1'
> man1direxp='/usr/share/man/man1'
> man1ext='1'
> man3dir='/usr/share/man/man3'
> man3direxp='/usr/share/man/man3'
> man3ext='3pm'
> mips_type=''
> mistrustnm=''
> mkdir='mkdir'
> mmaptype='void *'
> modetype='mode_t'
> more='more'
> multiarch=''
> mv=''
> myarchname='i686-linux'
> mydomain='.med.usherbrooke.ca'
> myhostname='denethor'
> myuname='linux denethor 2.6.5-gentoo-r1 #1 fri may 28 17:11:18 edt 2004
> i686 intel(r) pentium(r) 4 cpu 2.40ghz genuineintel gnulinux '
> n='-n'
> need_va_copy=''
> netdb_hlen_type='size_t'
> netdb_host_type='const void *'
> netdb_name_type='const char *'
> netdb_net_type='in_addr_t'
> nm='nm'
> nm_opt=''
> nm_so_opt='--dynamic'
> nonxs_ext='Errno'
> nroff='nroff'
> nvEUformat='"E"'
> nvFUformat='"F"'
> nvGUformat='"G"'
> nv_preserves_uv_bits='32'
> nveformat='"e"'
> nvfformat='"f"'
> nvgformat='"g"'
> nvsize='8'
> nvtype='double'
> o_nonblock='O_NONBLOCK'
> obj_ext='.o'
> old_pthread_create_joinable=''
> optimize='-O3 -march=pentium4 -fomit-frame-pointer -pipe'
> orderlib='false'
> osname='linux'
> osvers='2.6.5-gentoo-r1'
> otherlibdirs=' '
> package='perl5'
> pager='/usr/bin/less'
> passcat='cat /etc/passwd'
> patchlevel='8'
> path_sep=':'
> perl=''
> perl5='/usr/bin/perl'
> perl_patchlevel=''
> perladmin='[EMAIL PROTECTED]'
> perllibs='-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc'
> perlpath='/usr/bin/perl'
> pg='pg'
> phostname='hostname'
> pidtype='pid_t'
> plibpth=''
> pmake=''
> pr=''
> prefix='/usr'
> prefixexp='/usr'
> privlib='/usr/lib/perl5/5.8.6'
> privlibexp='/usr/lib/perl5/5.8.6'
> procselfexe='"/proc/self/exe"'
> prototype='define'
> ptrsize='4'
> quadkind='3'
> quadtype='long long'
> randbits='48'
> randfunc='drand48'
> random_r_proto='0'
> randseedtype='long'
> ranlib=':'
> rd_nodata='-1'
> readdir64_r_proto='0'
> readdir_r_proto='0'
> revision='5'
> rm='rm'
> rmail=''
> run=''
> runnm='false'
> sPRIEUldbl='"LE"'
> sPRIFUldbl='"LF"'
> sPRIGUldbl='"LG"'
> sPRIXU64='"LX"'
> sPRId64='"Ld"'
> sPRIeldbl='"Le"'
> sPRIfldbl='"Lf"'
> sPRIgldbl='"Lg"'
> sPRIi64='"Li"'
> sPRIo64='"Lo"'
> sPRIu64='"Lu"'
> sPRIx64='"Lx"'
> sSCNfldbl='"Lf"'
> sched_yield='sched_yield()'
> scriptdir='/usr/bin'
> scriptdirexp='/usr/bin'
> sed='sed'
> seedfunc='srand48'
> selectminbits='32'
> selecttype='fd_set *'
> sendmail=''
> setgrent_r_proto='0'
> sethostent_r_proto='0'
> setlocale_r_proto='0'
> setnetent_r_proto='0'
> setprotoent_r_proto='0'
> setpwent_r_proto='0'
> setservent_r_proto='0'
> sh='/bin/sh'
> shar=''
> sharpbang='#!'
> shmattype='void *'
> shortsize='2'
> shrpenv=''
> shsharp='true'
> sig_count='65'
> sig_name='ZERO HUP INT QUIT ILL TRAP ABRT BUS FPE KILL USR1 SEGV USR2
> PIPE ALRM TERM STKFLT CHLD CONT STOP TSTP TTIN TTOU URG XCPU XFSZ VTALRM
> PROF WINCH IO PWR SYS NUM32 NUM33 NUM34 RTMIN NUM36 NUM37 NUM38 NUM39
> NUM40 NUM41 NUM42 NUM43 NUM44 NUM45 NUM46 NUM47 NUM48 NUM49 NUM50 NUM51
> NUM52 NUM53 NUM54 NUM55 NUM56 NUM57 NUM58 NUM59 NUM60 NUM61 NUM62 NUM63
> RTMAX IOT CLD POLL UNUSED '
> sig_name_init='"ZERO", "HUP", "INT", "QUIT", "ILL", "TRAP", "ABRT",
> "BUS", "FPE", "KILL", "USR1", "SEGV", "USR2", "PIPE", "ALRM", "TERM",
> "STKFLT", "CHLD", "CONT", "STOP", "TSTP", "TTIN", "TTOU", "URG", "XCPU",
> "XFSZ", "VTALRM", "PROF", "WINCH", "IO", "PWR", "SYS", "NUM32", "NUM33",
> "NUM34", "RTMIN", "NUM36", "NUM37", "NUM38", "NUM39", "NUM40", "NUM41",
> "NUM42", "NUM43", "NUM44", "NUM45", "NUM46", "NUM47", "NUM48", "NUM49",
> "NUM50", "NUM51", "NUM52", "NUM53", "NUM54", "NUM55", "NUM56", "NUM57",
> "NUM58", "NUM59", "NUM60", "NUM61", "NUM62", "NUM63", "RTMAX", "IOT",
> "CLD", "POLL", "UNUSED", 0'
> sig_num='0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
> 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
> 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 6 17 29 31 '
> sig_num_init='0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
> 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
> 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
> 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 6, 17, 29, 31, 0'
> sig_size='69'
> signal_t='void'
> sitearch='/usr/lib/perl5/site_perl/5.8.6/i686-linux'
> sitearchexp='/usr/lib/perl5/site_perl/5.8.6/i686-linux'
> sitebin='/usr/bin'
> sitebinexp='/usr/bin'
> sitehtml1dir=''
> sitehtml1direxp=''
> sitehtml3dir=''
> sitehtml3direxp=''
> sitelib='/usr/lib/perl5/site_perl/5.8.6'
> sitelib_stem='/usr/lib/perl5/site_perl'
> sitelibexp='/usr/lib/perl5/site_perl/5.8.6'
> siteman1dir='/usr/share/man/man1'
> siteman1direxp='/usr/share/man/man1'
> siteman3dir='/usr/share/man/man3'
> siteman3direxp='/usr/share/man/man3'
> siteprefix='/usr'
> siteprefixexp='/usr'
> sitescript='/usr/bin'
> sitescriptexp='/usr/bin'
> sizesize='4'
> sizetype='size_t'
> sleep=''
> smail=''
> so='so'
> sockethdr=''
> socketlib=''
> socksizetype='socklen_t'
> sort='sort'
> spackage='Perl5'
> spitshell='cat'
> srand48_r_proto='0'
> srandom_r_proto='0'
> src='.'
> ssizetype='ssize_t'
> startperl='#!/usr/bin/perl'
> startsh='#!/bin/sh'
> static_ext=' '
> stdchar='char'
> stdio_base='((fp)->_IO_read_base)'
> stdio_bufsiz='((fp)->_IO_read_end - (fp)->_IO_read_base)'
> stdio_cnt='((fp)->_IO_read_end - (fp)->_IO_read_ptr)'
> stdio_filbuf=''
> stdio_ptr='((fp)->_IO_read_ptr)'
> stdio_stream_array=''
> strerror_r_proto='0'
> strings='/usr/include/string.h'
> submit=''
> subversion='6'
> sysman='/usr/share/man/man1'
> tail=''
> tar=''
> targetarch=''
> tbl=''
> tee=''
> test='test'
> timeincl='/usr/include/sys/time.h /usr/include/time.h '
> timetype='time_t'
> tmpnam_r_proto='0'
> to=':'
> touch='touch'
> tr='tr'
> trnl='\n'
> troff=''
> ttyname_r_proto='0'
> u16size='2'
> u16type='unsigned short'
> u32size='4'
> u32type='unsigned long'
> u64size='8'
> u64type='unsigned long long'
> u8size='1'
> u8type='unsigned char'
> uidformat='"lu"'
> uidsign='1'
> uidsize='4'
> uidtype='uid_t'
> uname='uname'
> uniq='uniq'
> uquadtype='unsigned long long'
> use5005threads=''
> use64bitall=''
> use64bitint=''
> usecrosscompile=''
> usedl='define'
> usefaststdio='define'
> useithreads=''
> uselargefiles='define'
> uselongdouble=''
> usemallocwrap='define'
> usemorebits=''
> usemultiplicity=''
> usemymalloc='n'
> usenm='false'
> useopcode='true'
> useperlio='define'
> useposix='true'
> usereentrant=''
> usesfio='false'
> useshrplib='false'
> usesocks=''
> usethreads=''
> usevendorprefix='define'
> usevfork='false'
> usrinc='/usr/include'
> uuname=''
> uvXUformat='"lX"'
> uvoformat='"lo"'
> uvsize='4'
> uvtype='unsigned long'
> uvuformat='"lu"'
> uvxformat='"lx"'
> vendorarch='/usr/lib/perl5/vendor_perl/5.8.6/i686-linux'
> vendorarchexp='/usr/lib/perl5/vendor_perl/5.8.6/i686-linux'
> vendorbin='/usr/bin'
> vendorbinexp='/usr/bin'
> vendorhtml1dir=' '
> vendorhtml1direxp=''
> vendorhtml3dir=' '
> vendorhtml3direxp=''
> vendorlib='/usr/lib/perl5/vendor_perl/5.8.6'
> vendorlib_stem='/usr/lib/perl5/vendor_perl'
> vendorlibexp='/usr/lib/perl5/vendor_perl/5.8.6'
> vendorman1dir='/usr/share/man/man1'
> vendorman1direxp='/usr/share/man/man1'
> vendorman3dir='/usr/share/man/man3'
> vendorman3direxp='/usr/share/man/man3'
> vendorprefix='/usr'
> vendorprefixexp='/usr'
> vendorscript='/usr/bin'
> vendorscriptexp='/usr/bin'
> version='5.8.6'
> version_patchlevel_string='version 8 subversion 6'
> versiononly=''
> vi=''
> voidflags='15'
> xlibpth='/usr/lib/386 /lib/386'
> yacc='yacc'
> yaccflags='-DPERL5 '
> zcat=''
> zip='zip'
--
Please note that ash-trays are provided for the use of smokers,
whereas the floor is provided for the use of all patrons.
-- Bill Royston
