[MacPorts] #60396: unzip @6.0_3 erroneously detects a possible zip bomb

MacPorts noreply at macports.org
Sat Apr 25 22:20:50 UTC 2020


#60396: unzip @6.0_3 erroneously detects a possible zip bomb
-------------------------+-----------------------------
  Reporter:  udbraumann  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  R, zoneinfo.zip
      Port:  unzip       |
-------------------------+-----------------------------
Changes (by udbraumann):

 * keywords:   => R, zoneinfo.zip


Old description:

> While upgrading `R` from `3.6.1_0` to `3.6.3_1` on my 10.5.8 PPC building
> stopped quite early:
>
> {{{
> ...
> :info:build make[2]: Entering directory
> `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_math_R/R/work/R-3.6.3/share'
> :info:build error: invalid zip file with overlapped components (possible
> zip bomb)
> :info:build make[2]: *** [install-zoneinfo] Error 12
> ...
> }}}
>
> Looking a bit more into the details, I found that the only zip file
> inside the build folder is `zoneinfo.zip` residing inside
> `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_math_R/R/work/R-3.6.3/src/extra/tzone`.
>
> Then, I checked what `unzip` I am regularly using:
>
> {{{
> $ which unzip
> /opt/local/bin/unzip
> }}}
>
> I also made sure that this MacPort version is being used during `R` build
> and found
>
> {{{
> ...
> :info:configure checking for unzip... /opt/local/bin/unzip
> ...
> }}}
>
> Also, I checked what version is being installed:
>
> {{{
> $ sudo port installed unzip
> The following ports are currently installed:
>   unzip @6.0_2
>   unzip @6.0_3 (active)
> }}}
>
> Then I put `zoneinfo.zip` into a separate folder to study what is so
> special here:
>
> {{{
> $ unzip zoneinfo.zip
> Archive:  zoneinfo.zip
> error: invalid zip file with overlapped components (possible zip bomb)
> }}}
>
> That indeed was the same message as above. But what about testing with
> `unzip @6.0_2`:
>
> {{{
> $ sudo port activate unzip at 6.0_2
> --->  Deactivating unzip @6.0_3
> --->  Cleaning unzip
> --->  Activating unzip @6.0_2
> --->  Cleaning unzip
> }}}
>
> And now once again with `unzip @6.0_2`:
>
> {{{
> $ unzip zoneinfo.zip
> Archive:  zoneinfo.zip
>    creating: zoneinfo/
>   inflating: zoneinfo/Egypt
>    creating: zoneinfo/Australia/
>   inflating: zoneinfo/Australia/Currie
>   inflating: zoneinfo/Australia/North
>   inflating: zoneinfo/Australia/Yancowinna
>   inflating: zoneinfo/Australia/Queensland
>   inflating: zoneinfo/Australia/Brisbane
>   inflating: zoneinfo/Australia/Melbourne
>   inflating: zoneinfo/Australia/Eucla
>   inflating: zoneinfo/Australia/Tasmania
>   inflating: zoneinfo/Australia/Lindeman
>   inflating: zoneinfo/Australia/Broken_Hill
>   inflating: zoneinfo/Australia/Victoria
>   inflating: zoneinfo/Australia/ACT
>   inflating: zoneinfo/Australia/Canberra
>   inflating: zoneinfo/Australia/Adelaide
>   inflating: zoneinfo/Australia/Darwin
>   inflating: zoneinfo/Australia/Lord_Howe
>   inflating: zoneinfo/Australia/LHI
>   inflating: zoneinfo/Australia/South
>   inflating: zoneinfo/Australia/Sydney
>   inflating: zoneinfo/Australia/Perth
>   inflating: zoneinfo/Australia/West
>   inflating: zoneinfo/Australia/NSW
>   inflating: zoneinfo/Australia/Hobart
>   inflating: zoneinfo/UCT
>   inflating: zoneinfo/CET
>    creating: zoneinfo/Europe/
>   inflating: zoneinfo/Europe/Tirane
>   inflating: zoneinfo/Europe/London
>   inflating: zoneinfo/Europe/Zagreb
>   inflating: zoneinfo/Europe/Ljubljana
>   inflating: zoneinfo/Europe/Nicosia
>   inflating: zoneinfo/Europe/Helsinki
>   inflating: zoneinfo/Europe/Stockholm
>   inflating: zoneinfo/Europe/Gibraltar
>   inflating: zoneinfo/Europe/Sofia
>   inflating: zoneinfo/Europe/Bucharest
>   inflating: zoneinfo/Europe/Kirov
>   inflating: zoneinfo/Europe/Jersey
>   inflating: zoneinfo/Europe/Vilnius
>   inflating: zoneinfo/Europe/Podgorica
>   inflating: zoneinfo/Europe/Astrakhan
>   inflating: zoneinfo/Europe/Minsk
>   inflating: zoneinfo/Europe/Mariehamn
>   inflating: zoneinfo/Europe/Zaporozhye
>   inflating: zoneinfo/Europe/Brussels
>   inflating: zoneinfo/Europe/Isle_of_Man
>   inflating: zoneinfo/Europe/Vaduz
>   inflating: zoneinfo/Europe/Athens
>   inflating: zoneinfo/Europe/Volgograd
>   inflating: zoneinfo/Europe/Ulyanovsk
>   inflating: zoneinfo/Europe/Samara
>   inflating: zoneinfo/Europe/Istanbul
>   inflating: zoneinfo/Europe/Copenhagen
>   inflating: zoneinfo/Europe/Guernsey
>   inflating: zoneinfo/Europe/Belfast
>   inflating: zoneinfo/Europe/Saratov
>   inflating: zoneinfo/Europe/Rome
>   inflating: zoneinfo/Europe/Monaco
>   inflating: zoneinfo/Europe/Paris
>   inflating: zoneinfo/Europe/Moscow
>   inflating: zoneinfo/Europe/Vatican
>   inflating: zoneinfo/Europe/Warsaw
>   inflating: zoneinfo/Europe/Malta
>   inflating: zoneinfo/Europe/Amsterdam
>   inflating: zoneinfo/Europe/Simferopol
>   inflating: zoneinfo/Europe/Dublin
>   inflating: zoneinfo/Europe/Budapest
>   inflating: zoneinfo/Europe/Busingen
>   inflating: zoneinfo/Europe/Prague
>   inflating: zoneinfo/Europe/Kaliningrad
>   inflating: zoneinfo/Europe/Berlin
>   inflating: zoneinfo/Europe/Andorra
>   inflating: zoneinfo/Europe/Tiraspol
>   inflating: zoneinfo/Europe/Sarajevo
>   inflating: zoneinfo/Europe/Chisinau
>   inflating: zoneinfo/Europe/Luxembourg
>   inflating: zoneinfo/Europe/Zurich
>   inflating: zoneinfo/Europe/Tallinn
>   inflating: zoneinfo/Europe/Belgrade
>   inflating: zoneinfo/Europe/Madrid
>   inflating: zoneinfo/Europe/Kiev
>   inflating: zoneinfo/Europe/Skopje
>   inflating: zoneinfo/Europe/Riga
>   inflating: zoneinfo/Europe/Vienna
>   inflating: zoneinfo/Europe/Oslo
>   inflating: zoneinfo/Europe/Lisbon
>   inflating: zoneinfo/Europe/Bratislava
>   inflating: zoneinfo/Europe/Uzhgorod
>   inflating: zoneinfo/Europe/San_Marino
>   inflating: zoneinfo/Poland
>   inflating: zoneinfo/Kwajalein
>   inflating: zoneinfo/EET
>   inflating: zoneinfo/Portugal
>   inflating: zoneinfo/MST
>   inflating: zoneinfo/Universal
>  extracting: zoneinfo/VERSION
>    creating: zoneinfo/Pacific/
>   inflating: zoneinfo/Pacific/Fakaofo
>   inflating: zoneinfo/Pacific/Auckland
>   inflating: zoneinfo/Pacific/Kwajalein
>   inflating: zoneinfo/Pacific/Wallis
>   inflating: zoneinfo/Pacific/Fiji
>   inflating: zoneinfo/Pacific/Norfolk
>   inflating: zoneinfo/Pacific/Samoa
>   inflating: zoneinfo/Pacific/Port_Moresby
>   inflating: zoneinfo/Pacific/Enderbury
>   inflating: zoneinfo/Pacific/Ponape
>   inflating: zoneinfo/Pacific/Niue
>   inflating: zoneinfo/Pacific/Kiritimati
>   inflating: zoneinfo/Pacific/Nauru
>   inflating: zoneinfo/Pacific/Noumea
>   inflating: zoneinfo/Pacific/Pohnpei
>   inflating: zoneinfo/Pacific/Kosrae
>   inflating: zoneinfo/Pacific/Guam
>   inflating: zoneinfo/Pacific/Pago_Pago
>   inflating: zoneinfo/Pacific/Rarotonga
>   inflating: zoneinfo/Pacific/Tahiti
>   inflating: zoneinfo/Pacific/Truk
>   inflating: zoneinfo/Pacific/Johnston
>   inflating: zoneinfo/Pacific/Bougainville
>   inflating: zoneinfo/Pacific/Chuuk
>   inflating: zoneinfo/Pacific/Pitcairn
>   inflating: zoneinfo/Pacific/Chatham
>   inflating: zoneinfo/Pacific/Galapagos
>   inflating: zoneinfo/Pacific/Tarawa
>   inflating: zoneinfo/Pacific/Marquesas
>   inflating: zoneinfo/Pacific/Palau
>   inflating: zoneinfo/Pacific/Saipan
>   inflating: zoneinfo/Pacific/Honolulu
>   inflating: zoneinfo/Pacific/Guadalcanal
>   inflating: zoneinfo/Pacific/Wake
>   inflating: zoneinfo/Pacific/Midway
>   inflating: zoneinfo/Pacific/Tongatapu
>   inflating: zoneinfo/Pacific/Gambier
>   inflating: zoneinfo/Pacific/Funafuti
>   inflating: zoneinfo/Pacific/Yap
>   inflating: zoneinfo/Pacific/Easter
>   inflating: zoneinfo/Pacific/Majuro
>   inflating: zoneinfo/Pacific/Efate
>   inflating: zoneinfo/Pacific/Apia
>    creating: zoneinfo/Atlantic/
>   inflating: zoneinfo/Atlantic/Cape_Verde
>   inflating: zoneinfo/Atlantic/Azores
>   inflating: zoneinfo/Atlantic/South_Georgia
>   inflating: zoneinfo/Atlantic/Madeira
>   inflating: zoneinfo/Atlantic/Bermuda
>   inflating: zoneinfo/Atlantic/Faeroe
>   inflating: zoneinfo/Atlantic/Stanley
>   inflating: zoneinfo/Atlantic/Canary
>   inflating: zoneinfo/Atlantic/Reykjavik
>   inflating: zoneinfo/Atlantic/Jan_Mayen
>   inflating: zoneinfo/Atlantic/Faroe
>   inflating: zoneinfo/Atlantic/St_Helena
>    creating: zoneinfo/Asia/
>   inflating: zoneinfo/Asia/Chongqing
>   inflating: zoneinfo/Asia/Ust-Nera
>   inflating: zoneinfo/Asia/Samarkand
>   inflating: zoneinfo/Asia/Saigon
>   inflating: zoneinfo/Asia/Bishkek
>   inflating: zoneinfo/Asia/Nicosia
>   inflating: zoneinfo/Asia/Ho_Chi_Minh
>   inflating: zoneinfo/Asia/Manila
>   inflating: zoneinfo/Asia/Jakarta
>   inflating: zoneinfo/Asia/Omsk
>   inflating: zoneinfo/Asia/Krasnoyarsk
>   inflating: zoneinfo/Asia/Aqtau
>   inflating: zoneinfo/Asia/Thimbu
>   inflating: zoneinfo/Asia/Karachi
>   inflating: zoneinfo/Asia/Beirut
>   inflating: zoneinfo/Asia/Kuching
>   inflating: zoneinfo/Asia/Dushanbe
>   inflating: zoneinfo/Asia/Famagusta
>   inflating: zoneinfo/Asia/Seoul
>   inflating: zoneinfo/Asia/Pontianak
>   inflating: zoneinfo/Asia/Anadyr
>   inflating: zoneinfo/Asia/Ulan_Bator
>   inflating: zoneinfo/Asia/Tokyo
>   inflating: zoneinfo/Asia/Jerusalem
>   inflating: zoneinfo/Asia/Dili
>   inflating: zoneinfo/Asia/Ujung_Pandang
>   inflating: zoneinfo/Asia/Tomsk
>   inflating: zoneinfo/Asia/Taipei
>   inflating: zoneinfo/Asia/Tel_Aviv
>   inflating: zoneinfo/Asia/Brunei
>   inflating: zoneinfo/Asia/Amman
>   inflating: zoneinfo/Asia/Dubai
>   inflating: zoneinfo/Asia/Aqtobe
>   inflating: zoneinfo/Asia/Aden
>   inflating: zoneinfo/Asia/Tehran
>   inflating: zoneinfo/Asia/Yerevan
>   inflating: zoneinfo/Asia/Makassar
>   inflating: zoneinfo/Asia/Baghdad
>   inflating: zoneinfo/Asia/Tbilisi
>   inflating: zoneinfo/Asia/Jayapura
>   inflating: zoneinfo/Asia/Qatar
>   inflating: zoneinfo/Asia/Damascus
>   inflating: zoneinfo/Asia/Chungking
>   inflating: zoneinfo/Asia/Harbin
>   inflating: zoneinfo/Asia/Ashgabat
>   inflating: zoneinfo/Asia/Choibalsan
>   inflating: zoneinfo/Asia/Istanbul
>   inflating: zoneinfo/Asia/Sakhalin
>   inflating: zoneinfo/Asia/Vladivostok
>   inflating: zoneinfo/Asia/Kuwait
>   inflating: zoneinfo/Asia/Bangkok
>   inflating: zoneinfo/Asia/Atyrau
>   inflating: zoneinfo/Asia/Macao
>   inflating: zoneinfo/Asia/Yekaterinburg
>   inflating: zoneinfo/Asia/Qyzylorda
>   inflating: zoneinfo/Asia/Riyadh
>   inflating: zoneinfo/Asia/Baku
>   inflating: zoneinfo/Asia/Calcutta
>   inflating: zoneinfo/Asia/Oral
>   inflating: zoneinfo/Asia/Pyongyang
>   inflating: zoneinfo/Asia/Urumqi
>   inflating: zoneinfo/Asia/Singapore
>   inflating: zoneinfo/Asia/Phnom_Penh
>   inflating: zoneinfo/Asia/Novokuznetsk
>   inflating: zoneinfo/Asia/Kamchatka
>   inflating: zoneinfo/Asia/Bahrain
>   inflating: zoneinfo/Asia/Colombo
>   inflating: zoneinfo/Asia/Ashkhabad
>   inflating: zoneinfo/Asia/Muscat
>   inflating: zoneinfo/Asia/Irkutsk
>   inflating: zoneinfo/Asia/Hebron
>   inflating: zoneinfo/Asia/Ulaanbaatar
>   inflating: zoneinfo/Asia/Chita
>   inflating: zoneinfo/Asia/Kolkata
>   inflating: zoneinfo/Asia/Yangon
>   inflating: zoneinfo/Asia/Srednekolymsk
>   inflating: zoneinfo/Asia/Macau
>   inflating: zoneinfo/Asia/Qostanay
>   inflating: zoneinfo/Asia/Kuala_Lumpur
>   inflating: zoneinfo/Asia/Dhaka
>   inflating: zoneinfo/Asia/Magadan
>   inflating: zoneinfo/Asia/Almaty
>   inflating: zoneinfo/Asia/Kabul
>   inflating: zoneinfo/Asia/Vientiane
>   inflating: zoneinfo/Asia/Dacca
>   inflating: zoneinfo/Asia/Katmandu
>   inflating: zoneinfo/Asia/Rangoon
>   inflating: zoneinfo/Asia/Gaza
>   inflating: zoneinfo/Asia/Tashkent
>   inflating: zoneinfo/Asia/Kathmandu
>   inflating: zoneinfo/Asia/Hong_Kong
>   inflating: zoneinfo/Asia/Hovd
>   inflating: zoneinfo/Asia/Novosibirsk
>   inflating: zoneinfo/Asia/Thimphu
>   inflating: zoneinfo/Asia/Khandyga
>   inflating: zoneinfo/Asia/Kashgar
>   inflating: zoneinfo/Asia/Barnaul
>   inflating: zoneinfo/Asia/Shanghai
>   inflating: zoneinfo/Asia/Yakutsk
>   inflating: zoneinfo/GB-Eire
>   inflating: zoneinfo/GMT
>    creating: zoneinfo/Brazil/
>   inflating: zoneinfo/Brazil/DeNoronha
>   inflating: zoneinfo/Brazil/Acre
>   inflating: zoneinfo/Brazil/East
>   inflating: zoneinfo/Brazil/West
>    creating: zoneinfo/Etc/
>   inflating: zoneinfo/Etc/UCT
>   inflating: zoneinfo/Etc/Universal
>   inflating: zoneinfo/Etc/GMT-9
>   inflating: zoneinfo/Etc/GMT
>   inflating: zoneinfo/Etc/GMT+6
>   inflating: zoneinfo/Etc/GMT+10
>   inflating: zoneinfo/Etc/GMT-8
>   inflating: zoneinfo/Etc/GMT-2
>   inflating: zoneinfo/Etc/GMT-7
>   inflating: zoneinfo/Etc/GMT+8
>   inflating: zoneinfo/Etc/GMT+7
>   inflating: zoneinfo/Etc/GMT+1
>   inflating: zoneinfo/Etc/GMT-13
>   inflating: zoneinfo/Etc/GMT-0
>   inflating: zoneinfo/Etc/GMT+12
>   inflating: zoneinfo/Etc/Greenwich
>   inflating: zoneinfo/Etc/Zulu
>   inflating: zoneinfo/Etc/UTC
>   inflating: zoneinfo/Etc/GMT-12
>   inflating: zoneinfo/Etc/GMT-3
>   inflating: zoneinfo/Etc/GMT-6
>   inflating: zoneinfo/Etc/GMT+2
>   inflating: zoneinfo/Etc/GMT-10
>   inflating: zoneinfo/Etc/GMT+9
>   inflating: zoneinfo/Etc/GMT+3
>   inflating: zoneinfo/Etc/GMT+4
>   inflating: zoneinfo/Etc/GMT+5
>   inflating: zoneinfo/Etc/GMT-5
>   inflating: zoneinfo/Etc/GMT-4
>   inflating: zoneinfo/Etc/GMT-11
>   inflating: zoneinfo/Etc/GMT-1
>   inflating: zoneinfo/Etc/GMT0
>   inflating: zoneinfo/Etc/GMT-14
>   inflating: zoneinfo/Etc/GMT+0
>   inflating: zoneinfo/Etc/GMT+11
>   inflating: zoneinfo/Navajo
>   inflating: zoneinfo/iso3166.tab
>   inflating: zoneinfo/Hongkong
>    creating: zoneinfo/Arctic/
>   inflating: zoneinfo/Arctic/Longyearbyen
>   inflating: zoneinfo/GMT-0
>   inflating: zoneinfo/Iran
>   inflating: zoneinfo/WET
>   inflating: zoneinfo/Greenwich
>   inflating: zoneinfo/ROK
>   inflating: zoneinfo/Zulu
>   inflating: zoneinfo/UTC
>   inflating: zoneinfo/EST
>   inflating: zoneinfo/PRC
>    creating: zoneinfo/Indian/
>   inflating: zoneinfo/Indian/Maldives
>   inflating: zoneinfo/Indian/Mauritius
>   inflating: zoneinfo/Indian/Antananarivo
>   inflating: zoneinfo/Indian/Kerguelen
>   inflating: zoneinfo/Indian/Comoro
>   inflating: zoneinfo/Indian/Mayotte
>   inflating: zoneinfo/Indian/Chagos
>   inflating: zoneinfo/Indian/Reunion
>   inflating: zoneinfo/Indian/Christmas
>   inflating: zoneinfo/Indian/Cocos
>   inflating: zoneinfo/Indian/Mahe
>   inflating: zoneinfo/MST7MDT
>   inflating: zoneinfo/Japan
>   inflating: zoneinfo/Iceland
>   inflating: zoneinfo/zone.tab
>   inflating: zoneinfo/Jamaica
>   inflating: zoneinfo/Singapore
>   inflating: zoneinfo/HST
>   inflating: zoneinfo/NZ
>    creating: zoneinfo/US/
>   inflating: zoneinfo/US/Indiana-Starke
>   inflating: zoneinfo/US/Samoa
>   inflating: zoneinfo/US/Pacific
>   inflating: zoneinfo/US/Aleutian
>   inflating: zoneinfo/US/East-Indiana
>   inflating: zoneinfo/US/Michigan
>   inflating: zoneinfo/US/Arizona
>   inflating: zoneinfo/US/Hawaii
>   inflating: zoneinfo/US/Mountain
>   inflating: zoneinfo/US/Pacific-New
>   inflating: zoneinfo/US/Eastern
>   inflating: zoneinfo/US/Central
>   inflating: zoneinfo/US/Alaska
>    creating: zoneinfo/Chile/
>   inflating: zoneinfo/Chile/Continental
>   inflating: zoneinfo/Chile/EasterIsland
>   inflating: zoneinfo/GB
>   inflating: zoneinfo/CST6CDT
>   inflating: zoneinfo/Eire
>   inflating: zoneinfo/Turkey
>   inflating: zoneinfo/NZ-CHAT
>    creating: zoneinfo/Canada/
>   inflating: zoneinfo/Canada/Pacific
>   inflating: zoneinfo/Canada/Atlantic
>   inflating: zoneinfo/Canada/Newfoundland
>   inflating: zoneinfo/Canada/Yukon
>   inflating: zoneinfo/Canada/Saskatchewan
>   inflating: zoneinfo/Canada/Mountain
>   inflating: zoneinfo/Canada/Eastern
>   inflating: zoneinfo/Canada/Central
>    creating: zoneinfo/America/
>   inflating: zoneinfo/America/Guadeloupe
>   inflating: zoneinfo/America/Guyana
>   inflating: zoneinfo/America/Knox_IN
>   inflating: zoneinfo/America/Rio_Branco
>   inflating: zoneinfo/America/Cambridge_Bay
>   inflating: zoneinfo/America/Menominee
>   inflating: zoneinfo/America/Anchorage
>   inflating: zoneinfo/America/Kralendijk
>   inflating: zoneinfo/America/Grenada
>   inflating: zoneinfo/America/Monterrey
>   inflating: zoneinfo/America/Cuiaba
>   inflating: zoneinfo/America/Regina
>   inflating: zoneinfo/America/Toronto
>   inflating: zoneinfo/America/Cayman
>   inflating: zoneinfo/America/Miquelon
>   inflating: zoneinfo/America/Pangnirtung
>   inflating: zoneinfo/America/Dominica
>   inflating: zoneinfo/America/Martinique
>   inflating: zoneinfo/America/Bahia_Banderas
>   inflating: zoneinfo/America/Porto_Velho
>   inflating: zoneinfo/America/Nassau
>   inflating: zoneinfo/America/Vancouver
>   inflating: zoneinfo/America/Juneau
>   inflating: zoneinfo/America/Swift_Current
>   inflating: zoneinfo/America/Virgin
>   inflating: zoneinfo/America/New_York
>   inflating: zoneinfo/America/Montevideo
>   inflating: zoneinfo/America/Boa_Vista
>   inflating: zoneinfo/America/Halifax
>   inflating: zoneinfo/America/Detroit
>   inflating: zoneinfo/America/St_Vincent
>   inflating: zoneinfo/America/Inuvik
>   inflating: zoneinfo/America/Ojinaga
>   inflating: zoneinfo/America/Santa_Isabel
>   inflating: zoneinfo/America/Lower_Princes
>   inflating: zoneinfo/America/St_Johns
>   inflating: zoneinfo/America/Scoresbysund
>   inflating: zoneinfo/America/Managua
>   inflating: zoneinfo/America/Indianapolis
>   inflating: zoneinfo/America/Recife
>   inflating: zoneinfo/America/Winnipeg
>   inflating: zoneinfo/America/Bahia
>   inflating: zoneinfo/America/Thunder_Bay
>   inflating: zoneinfo/America/Goose_Bay
>   inflating: zoneinfo/America/Aruba
>   inflating: zoneinfo/America/Port_of_Spain
>   inflating: zoneinfo/America/Noronha
>   inflating: zoneinfo/America/Santo_Domingo
>   inflating: zoneinfo/America/St_Barthelemy
>    creating: zoneinfo/America/Argentina/
>   inflating: zoneinfo/America/Argentina/La_Rioja
>   inflating: zoneinfo/America/Argentina/San_Luis
>   inflating: zoneinfo/America/Argentina/San_Juan
>   inflating: zoneinfo/America/Argentina/Buenos_Aires
>   inflating: zoneinfo/America/Argentina/Jujuy
>   inflating: zoneinfo/America/Argentina/Salta
>   inflating: zoneinfo/America/Argentina/Catamarca
>   inflating: zoneinfo/America/Argentina/Tucuman
>   inflating: zoneinfo/America/Argentina/Rio_Gallegos
>   inflating: zoneinfo/America/Argentina/Cordoba
>   inflating: zoneinfo/America/Argentina/ComodRivadavia
>   inflating: zoneinfo/America/Argentina/Mendoza
>   inflating: zoneinfo/America/Argentina/Ushuaia
>   inflating: zoneinfo/America/Puerto_Rico
>    creating: zoneinfo/America/Kentucky/
>   inflating: zoneinfo/America/Kentucky/Monticello
>   inflating: zoneinfo/America/Kentucky/Louisville
>   inflating: zoneinfo/America/Fort_Wayne
>   inflating: zoneinfo/America/Santiago
>   inflating: zoneinfo/America/Guayaquil
>   inflating: zoneinfo/America/Araguaina
>   inflating: zoneinfo/America/Merida
>   inflating: zoneinfo/America/Resolute
>   inflating: zoneinfo/America/Buenos_Aires
>   inflating: zoneinfo/America/Hermosillo
>   inflating: zoneinfo/America/Blanc-Sablon
>   inflating: zoneinfo/America/Cayenne
>    creating: zoneinfo/America/North_Dakota/
>   inflating: zoneinfo/America/North_Dakota/Center
>   inflating: zoneinfo/America/North_Dakota/Beulah
>   inflating: zoneinfo/America/North_Dakota/New_Salem
>   inflating: zoneinfo/America/Edmonton
>   inflating: zoneinfo/America/Godthab
>   inflating: zoneinfo/America/Panama
>   inflating: zoneinfo/America/Montreal
>   inflating: zoneinfo/America/Campo_Grande
>   inflating: zoneinfo/America/Santarem
>   inflating: zoneinfo/America/Coral_Harbour
>   inflating: zoneinfo/America/Dawson
>   inflating: zoneinfo/America/Nipigon
>   inflating: zoneinfo/America/Rankin_Inlet
>   inflating: zoneinfo/America/Adak
>   inflating: zoneinfo/America/Antigua
>   inflating: zoneinfo/America/Jujuy
>   inflating: zoneinfo/America/El_Salvador
>   inflating: zoneinfo/America/Fort_Nelson
>   inflating: zoneinfo/America/Sitka
>   inflating: zoneinfo/America/Belize
>   inflating: zoneinfo/America/Maceio
>   inflating: zoneinfo/America/Yakutat
>   inflating: zoneinfo/America/Sao_Paulo
>   inflating: zoneinfo/America/Rosario
>   inflating: zoneinfo/America/Jamaica
>   inflating: zoneinfo/America/Ensenada
>   inflating: zoneinfo/America/Glace_Bay
>   inflating: zoneinfo/America/Shiprock
>   inflating: zoneinfo/America/Cancun
>   inflating: zoneinfo/America/Caracas
>   inflating: zoneinfo/America/Fortaleza
>   inflating: zoneinfo/America/Matamoros
>   inflating: zoneinfo/America/Catamarca
>   inflating: zoneinfo/America/Guatemala
>   inflating: zoneinfo/America/Curacao
>   inflating: zoneinfo/America/La_Paz
>   inflating: zoneinfo/America/Denver
>   inflating: zoneinfo/America/Tegucigalpa
>   inflating: zoneinfo/America/Anguilla
>   inflating: zoneinfo/America/Punta_Arenas
>   inflating: zoneinfo/America/Manaus
>   inflating: zoneinfo/America/Bogota
>   inflating: zoneinfo/America/Nome
>   inflating: zoneinfo/America/Lima
>   inflating: zoneinfo/America/Asuncion
>   inflating: zoneinfo/America/Danmarkshavn
>   inflating: zoneinfo/America/Tortola
>   inflating: zoneinfo/America/Havana
>   inflating: zoneinfo/America/Moncton
>   inflating: zoneinfo/America/Boise
>   inflating: zoneinfo/America/Thule
>   inflating: zoneinfo/America/Rainy_River
>   inflating: zoneinfo/America/Cordoba
>   inflating: zoneinfo/America/Whitehorse
>   inflating: zoneinfo/America/Marigot
>   inflating: zoneinfo/America/Paramaribo
>   inflating: zoneinfo/America/Costa_Rica
>   inflating: zoneinfo/America/Grand_Turk
>   inflating: zoneinfo/America/Mexico_City
>   inflating: zoneinfo/America/Dawson_Creek
>   inflating: zoneinfo/America/St_Thomas
>   inflating: zoneinfo/America/Chicago
>   inflating: zoneinfo/America/Creston
>   inflating: zoneinfo/America/Phoenix
>   inflating: zoneinfo/America/Mazatlan
>   inflating: zoneinfo/America/Chihuahua
>   inflating: zoneinfo/America/Montserrat
>   inflating: zoneinfo/America/Louisville
>   inflating: zoneinfo/America/Atikokan
>    creating: zoneinfo/America/Indiana/
>   inflating: zoneinfo/America/Indiana/Marengo
>   inflating: zoneinfo/America/Indiana/Indianapolis
>   inflating: zoneinfo/America/Indiana/Vincennes
>   inflating: zoneinfo/America/Indiana/Vevay
>   inflating: zoneinfo/America/Indiana/Winamac
>   inflating: zoneinfo/America/Indiana/Petersburg
>   inflating: zoneinfo/America/Indiana/Tell_City
>   inflating: zoneinfo/America/Indiana/Knox
>   inflating: zoneinfo/America/Atka
>   inflating: zoneinfo/America/Iqaluit
>   inflating: zoneinfo/America/Tijuana
>   inflating: zoneinfo/America/Eirunepe
>   inflating: zoneinfo/America/Port-au-Prince
>   inflating: zoneinfo/America/Metlakatla
>   inflating: zoneinfo/America/Mendoza
>   inflating: zoneinfo/America/Barbados
>   inflating: zoneinfo/America/Belem
>   inflating: zoneinfo/America/St_Kitts
>   inflating: zoneinfo/America/St_Lucia
>   inflating: zoneinfo/America/Los_Angeles
>   inflating: zoneinfo/America/Yellowknife
>   inflating: zoneinfo/America/Porto_Acre
>   inflating: zoneinfo/EST5EDT
>    creating: zoneinfo/Africa/
>   inflating: zoneinfo/Africa/Monrovia
>   inflating: zoneinfo/Africa/Bissau
>   inflating: zoneinfo/Africa/Kinshasa
>   inflating: zoneinfo/Africa/Bamako
>   inflating: zoneinfo/Africa/Ouagadougou
>   inflating: zoneinfo/Africa/Lubumbashi
>   inflating: zoneinfo/Africa/Mogadishu
>   inflating: zoneinfo/Africa/Ndjamena
>   inflating: zoneinfo/Africa/Ceuta
>   inflating: zoneinfo/Africa/Nairobi
>   inflating: zoneinfo/Africa/Malabo
>   inflating: zoneinfo/Africa/Blantyre
>   inflating: zoneinfo/Africa/Tripoli
>   inflating: zoneinfo/Africa/Lagos
>   inflating: zoneinfo/Africa/Bangui
>   inflating: zoneinfo/Africa/Addis_Ababa
>   inflating: zoneinfo/Africa/Accra
>   inflating: zoneinfo/Africa/Maseru
>   inflating: zoneinfo/Africa/Algiers
>   inflating: zoneinfo/Africa/Lusaka
>   inflating: zoneinfo/Africa/Abidjan
>   inflating: zoneinfo/Africa/Nouakchott
>   inflating: zoneinfo/Africa/Luanda
>   inflating: zoneinfo/Africa/Maputo
>   inflating: zoneinfo/Africa/Johannesburg
>   inflating: zoneinfo/Africa/Mbabane
>   inflating: zoneinfo/Africa/Windhoek
>   inflating: zoneinfo/Africa/Dakar
>   inflating: zoneinfo/Africa/Douala
>   inflating: zoneinfo/Africa/Juba
>   inflating: zoneinfo/Africa/Banjul
>   inflating: zoneinfo/Africa/Dar_es_Salaam
>   inflating: zoneinfo/Africa/Porto-Novo
>   inflating: zoneinfo/Africa/Asmera
>   inflating: zoneinfo/Africa/El_Aaiun
>   inflating: zoneinfo/Africa/Conakry
>   inflating: zoneinfo/Africa/Brazzaville
>   inflating: zoneinfo/Africa/Tunis
>   inflating: zoneinfo/Africa/Lome
>   inflating: zoneinfo/Africa/Asmara
>   inflating: zoneinfo/Africa/Timbuktu
>   inflating: zoneinfo/Africa/Casablanca
>   inflating: zoneinfo/Africa/Freetown
>   inflating: zoneinfo/Africa/Bujumbura
>   inflating: zoneinfo/Africa/Niamey
>   inflating: zoneinfo/Africa/Cairo
>   inflating: zoneinfo/Africa/Harare
>   inflating: zoneinfo/Africa/Kigali
>   inflating: zoneinfo/Africa/Kampala
>   inflating: zoneinfo/Africa/Sao_Tome
>   inflating: zoneinfo/Africa/Khartoum
>   inflating: zoneinfo/Africa/Djibouti
>   inflating: zoneinfo/Africa/Gaborone
>   inflating: zoneinfo/Africa/Libreville
>   inflating: zoneinfo/Israel
>   inflating: zoneinfo/MET
>    creating: zoneinfo/Mexico/
>   inflating: zoneinfo/Mexico/BajaNorte
>   inflating: zoneinfo/Mexico/BajaSur
>   inflating: zoneinfo/Mexico/General
>   inflating: zoneinfo/Libya
>   inflating: zoneinfo/GMT0
>   inflating: zoneinfo/ROC
>    creating: zoneinfo/Antarctica/
>   inflating: zoneinfo/Antarctica/Davis
>   inflating: zoneinfo/Antarctica/Palmer
>   inflating: zoneinfo/Antarctica/Vostok
>   inflating: zoneinfo/Antarctica/Syowa
>   inflating: zoneinfo/Antarctica/DumontDUrville
>   inflating: zoneinfo/Antarctica/Mawson
>   inflating: zoneinfo/Antarctica/Rothera
>   inflating: zoneinfo/Antarctica/Casey
>   inflating: zoneinfo/Antarctica/Troll
>   inflating: zoneinfo/Antarctica/Macquarie
>   inflating: zoneinfo/Antarctica/South_Pole
>   inflating: zoneinfo/Antarctica/McMurdo
>   inflating: zoneinfo/GMT+0
>   inflating: zoneinfo/PST8PDT
>   inflating: zoneinfo/Cuba
>   inflating: zoneinfo/W-SU
> }}}
>
> Phew! Not a bomb!
>
> So, now it is up to you to find out what makes `unzip @6.0_3` believe
> this `zoneinfo.zip` (see attached) is a possibly a bomb. My guess is the
> remarkable regularity of the time zone files with respect to GMT:
>
> {{{
> $ grep GMT zoneinfo.txt
>         0  09-23-2019 10:51   zoneinfo/GMT
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-9
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+6
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+10
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-8
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-2
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-7
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+8
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+7
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+1
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-13
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-0
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+12
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-12
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-3
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-6
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+2
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-10
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+9
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+3
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+4
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+5
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-5
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-4
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-11
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-1
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT0
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT-14
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+0
>         0  09-23-2019 10:51   zoneinfo/Etc/GMT+11
>         0  09-23-2019 10:51   zoneinfo/GMT-0
>         0  09-23-2019 10:51   zoneinfo/GMT0
>         0  09-23-2019 10:51   zoneinfo/GMT+0
> }}}
>
> Hope you or someone upstream can find a fix. It is interesting that
> apparently no one else came across this building problem concerning `R`
> so far, but maybe the MacOS built-in `/usr/bin/unzip` is preferred on the
> buildbots (I on my old but spry 10.5.8 PPC have `/usr/bin/unzip` 5.52 as
> of 2005).

New description:

 While upgrading `R` from `3.6.1_0` to `3.6.3_1` on my 10.5.8 PPC building
 stopped quite early:

 {{{
 ...
 :info:build make[2]: Entering directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_math_R/R/work/R-3.6.3/share'
 :info:build error: invalid zip file with overlapped components (possible
 zip bomb)
 :info:build make[2]: *** [install-zoneinfo] Error 12
 ...
 }}}

 Looking a bit more into the details, I found that the only zip file inside
 the build folder is `zoneinfo.zip` residing inside
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_math_R/R/work/R-3.6.3/src/extra/tzone`.

 Then, I checked what `unzip` I am regularly using:

 {{{
 $ which unzip
 /opt/local/bin/unzip
 }}}

 I also made sure that this MacPort version is being used during `R` build
 and found

 {{{
 ...
 :info:configure checking for unzip... /opt/local/bin/unzip
 ...
 }}}

 Also, I checked what version is being installed:

 {{{
 $ sudo port installed unzip
 The following ports are currently installed:
   unzip @6.0_2
   unzip @6.0_3 (active)
 }}}

 Then I put `zoneinfo.zip` into a separate folder to study what is so
 special here:

 {{{
 $ unzip zoneinfo.zip
 Archive:  zoneinfo.zip
 error: invalid zip file with overlapped components (possible zip bomb)
 }}}

 That indeed was the same message as above. But what about testing with
 `unzip @6.0_2`:

 {{{
 $ sudo port activate unzip at 6.0_2
 --->  Deactivating unzip @6.0_3
 --->  Cleaning unzip
 --->  Activating unzip @6.0_2
 --->  Cleaning unzip
 }}}

 And now once again with `unzip @6.0_2`:

 {{{
 $ unzip zoneinfo.zip
 Archive:  zoneinfo.zip
    creating: zoneinfo/
   inflating: zoneinfo/Egypt
    creating: zoneinfo/Australia/
   inflating: zoneinfo/Australia/Currie
   inflating: zoneinfo/Australia/North
   inflating: zoneinfo/Australia/Yancowinna
   inflating: zoneinfo/Australia/Queensland
   inflating: zoneinfo/Australia/Brisbane
   inflating: zoneinfo/Australia/Melbourne
   inflating: zoneinfo/Australia/Eucla
   inflating: zoneinfo/Australia/Tasmania
   inflating: zoneinfo/Australia/Lindeman
   inflating: zoneinfo/Australia/Broken_Hill
   inflating: zoneinfo/Australia/Victoria
   inflating: zoneinfo/Australia/ACT
   inflating: zoneinfo/Australia/Canberra
   inflating: zoneinfo/Australia/Adelaide
   inflating: zoneinfo/Australia/Darwin
   inflating: zoneinfo/Australia/Lord_Howe
   inflating: zoneinfo/Australia/LHI
   inflating: zoneinfo/Australia/South
   inflating: zoneinfo/Australia/Sydney
   inflating: zoneinfo/Australia/Perth
   inflating: zoneinfo/Australia/West
   inflating: zoneinfo/Australia/NSW
   inflating: zoneinfo/Australia/Hobart
   inflating: zoneinfo/UCT
   inflating: zoneinfo/CET
    creating: zoneinfo/Europe/
   inflating: zoneinfo/Europe/Tirane
   inflating: zoneinfo/Europe/London
   inflating: zoneinfo/Europe/Zagreb
   inflating: zoneinfo/Europe/Ljubljana
   inflating: zoneinfo/Europe/Nicosia
   inflating: zoneinfo/Europe/Helsinki
   inflating: zoneinfo/Europe/Stockholm
   inflating: zoneinfo/Europe/Gibraltar
   inflating: zoneinfo/Europe/Sofia
   inflating: zoneinfo/Europe/Bucharest
   inflating: zoneinfo/Europe/Kirov
   inflating: zoneinfo/Europe/Jersey
   inflating: zoneinfo/Europe/Vilnius
   inflating: zoneinfo/Europe/Podgorica
   inflating: zoneinfo/Europe/Astrakhan
   inflating: zoneinfo/Europe/Minsk
   inflating: zoneinfo/Europe/Mariehamn
   inflating: zoneinfo/Europe/Zaporozhye
   inflating: zoneinfo/Europe/Brussels
   inflating: zoneinfo/Europe/Isle_of_Man
   inflating: zoneinfo/Europe/Vaduz
   inflating: zoneinfo/Europe/Athens
   inflating: zoneinfo/Europe/Volgograd
   inflating: zoneinfo/Europe/Ulyanovsk
   inflating: zoneinfo/Europe/Samara
   inflating: zoneinfo/Europe/Istanbul
   inflating: zoneinfo/Europe/Copenhagen
   inflating: zoneinfo/Europe/Guernsey
   inflating: zoneinfo/Europe/Belfast
   inflating: zoneinfo/Europe/Saratov
   inflating: zoneinfo/Europe/Rome
   inflating: zoneinfo/Europe/Monaco
   inflating: zoneinfo/Europe/Paris
   inflating: zoneinfo/Europe/Moscow
   inflating: zoneinfo/Europe/Vatican
   inflating: zoneinfo/Europe/Warsaw
   inflating: zoneinfo/Europe/Malta
   inflating: zoneinfo/Europe/Amsterdam
   inflating: zoneinfo/Europe/Simferopol
   inflating: zoneinfo/Europe/Dublin
   inflating: zoneinfo/Europe/Budapest
   inflating: zoneinfo/Europe/Busingen
   inflating: zoneinfo/Europe/Prague
   inflating: zoneinfo/Europe/Kaliningrad
   inflating: zoneinfo/Europe/Berlin
   inflating: zoneinfo/Europe/Andorra
   inflating: zoneinfo/Europe/Tiraspol
   inflating: zoneinfo/Europe/Sarajevo
   inflating: zoneinfo/Europe/Chisinau
   inflating: zoneinfo/Europe/Luxembourg
   inflating: zoneinfo/Europe/Zurich
   inflating: zoneinfo/Europe/Tallinn
   inflating: zoneinfo/Europe/Belgrade
   inflating: zoneinfo/Europe/Madrid
   inflating: zoneinfo/Europe/Kiev
   inflating: zoneinfo/Europe/Skopje
   inflating: zoneinfo/Europe/Riga
   inflating: zoneinfo/Europe/Vienna
   inflating: zoneinfo/Europe/Oslo
   inflating: zoneinfo/Europe/Lisbon
   inflating: zoneinfo/Europe/Bratislava
   inflating: zoneinfo/Europe/Uzhgorod
   inflating: zoneinfo/Europe/San_Marino
   inflating: zoneinfo/Poland
   inflating: zoneinfo/Kwajalein
   inflating: zoneinfo/EET
   inflating: zoneinfo/Portugal
   inflating: zoneinfo/MST
   inflating: zoneinfo/Universal
  extracting: zoneinfo/VERSION
    creating: zoneinfo/Pacific/
   inflating: zoneinfo/Pacific/Fakaofo
   inflating: zoneinfo/Pacific/Auckland
   inflating: zoneinfo/Pacific/Kwajalein
   inflating: zoneinfo/Pacific/Wallis
   inflating: zoneinfo/Pacific/Fiji
   inflating: zoneinfo/Pacific/Norfolk
   inflating: zoneinfo/Pacific/Samoa
   inflating: zoneinfo/Pacific/Port_Moresby
   inflating: zoneinfo/Pacific/Enderbury
   inflating: zoneinfo/Pacific/Ponape
   inflating: zoneinfo/Pacific/Niue
   inflating: zoneinfo/Pacific/Kiritimati
   inflating: zoneinfo/Pacific/Nauru
   inflating: zoneinfo/Pacific/Noumea
   inflating: zoneinfo/Pacific/Pohnpei
   inflating: zoneinfo/Pacific/Kosrae
   inflating: zoneinfo/Pacific/Guam
   inflating: zoneinfo/Pacific/Pago_Pago
   inflating: zoneinfo/Pacific/Rarotonga
   inflating: zoneinfo/Pacific/Tahiti
   inflating: zoneinfo/Pacific/Truk
   inflating: zoneinfo/Pacific/Johnston
   inflating: zoneinfo/Pacific/Bougainville
   inflating: zoneinfo/Pacific/Chuuk
   inflating: zoneinfo/Pacific/Pitcairn
   inflating: zoneinfo/Pacific/Chatham
   inflating: zoneinfo/Pacific/Galapagos
   inflating: zoneinfo/Pacific/Tarawa
   inflating: zoneinfo/Pacific/Marquesas
   inflating: zoneinfo/Pacific/Palau
   inflating: zoneinfo/Pacific/Saipan
   inflating: zoneinfo/Pacific/Honolulu
   inflating: zoneinfo/Pacific/Guadalcanal
   inflating: zoneinfo/Pacific/Wake
   inflating: zoneinfo/Pacific/Midway
   inflating: zoneinfo/Pacific/Tongatapu
   inflating: zoneinfo/Pacific/Gambier
   inflating: zoneinfo/Pacific/Funafuti
   inflating: zoneinfo/Pacific/Yap
   inflating: zoneinfo/Pacific/Easter
   inflating: zoneinfo/Pacific/Majuro
   inflating: zoneinfo/Pacific/Efate
   inflating: zoneinfo/Pacific/Apia
    creating: zoneinfo/Atlantic/
   inflating: zoneinfo/Atlantic/Cape_Verde
   inflating: zoneinfo/Atlantic/Azores
   inflating: zoneinfo/Atlantic/South_Georgia
   inflating: zoneinfo/Atlantic/Madeira
   inflating: zoneinfo/Atlantic/Bermuda
   inflating: zoneinfo/Atlantic/Faeroe
   inflating: zoneinfo/Atlantic/Stanley
   inflating: zoneinfo/Atlantic/Canary
   inflating: zoneinfo/Atlantic/Reykjavik
   inflating: zoneinfo/Atlantic/Jan_Mayen
   inflating: zoneinfo/Atlantic/Faroe
   inflating: zoneinfo/Atlantic/St_Helena
    creating: zoneinfo/Asia/
   inflating: zoneinfo/Asia/Chongqing
   inflating: zoneinfo/Asia/Ust-Nera
   inflating: zoneinfo/Asia/Samarkand
   inflating: zoneinfo/Asia/Saigon
   inflating: zoneinfo/Asia/Bishkek
   inflating: zoneinfo/Asia/Nicosia
   inflating: zoneinfo/Asia/Ho_Chi_Minh
   inflating: zoneinfo/Asia/Manila
   inflating: zoneinfo/Asia/Jakarta
   inflating: zoneinfo/Asia/Omsk
   inflating: zoneinfo/Asia/Krasnoyarsk
   inflating: zoneinfo/Asia/Aqtau
   inflating: zoneinfo/Asia/Thimbu
   inflating: zoneinfo/Asia/Karachi
   inflating: zoneinfo/Asia/Beirut
   inflating: zoneinfo/Asia/Kuching
   inflating: zoneinfo/Asia/Dushanbe
   inflating: zoneinfo/Asia/Famagusta
   inflating: zoneinfo/Asia/Seoul
   inflating: zoneinfo/Asia/Pontianak
   inflating: zoneinfo/Asia/Anadyr
   inflating: zoneinfo/Asia/Ulan_Bator
   inflating: zoneinfo/Asia/Tokyo
   inflating: zoneinfo/Asia/Jerusalem
   inflating: zoneinfo/Asia/Dili
   inflating: zoneinfo/Asia/Ujung_Pandang
   inflating: zoneinfo/Asia/Tomsk
   inflating: zoneinfo/Asia/Taipei
   inflating: zoneinfo/Asia/Tel_Aviv
   inflating: zoneinfo/Asia/Brunei
   inflating: zoneinfo/Asia/Amman
   inflating: zoneinfo/Asia/Dubai
   inflating: zoneinfo/Asia/Aqtobe
   inflating: zoneinfo/Asia/Aden
   inflating: zoneinfo/Asia/Tehran
   inflating: zoneinfo/Asia/Yerevan
   inflating: zoneinfo/Asia/Makassar
   inflating: zoneinfo/Asia/Baghdad
   inflating: zoneinfo/Asia/Tbilisi
   inflating: zoneinfo/Asia/Jayapura
   inflating: zoneinfo/Asia/Qatar
   inflating: zoneinfo/Asia/Damascus
   inflating: zoneinfo/Asia/Chungking
   inflating: zoneinfo/Asia/Harbin
   inflating: zoneinfo/Asia/Ashgabat
   inflating: zoneinfo/Asia/Choibalsan
   inflating: zoneinfo/Asia/Istanbul
   inflating: zoneinfo/Asia/Sakhalin
   inflating: zoneinfo/Asia/Vladivostok
   inflating: zoneinfo/Asia/Kuwait
   inflating: zoneinfo/Asia/Bangkok
   inflating: zoneinfo/Asia/Atyrau
   inflating: zoneinfo/Asia/Macao
   inflating: zoneinfo/Asia/Yekaterinburg
   inflating: zoneinfo/Asia/Qyzylorda
   inflating: zoneinfo/Asia/Riyadh
   inflating: zoneinfo/Asia/Baku
   inflating: zoneinfo/Asia/Calcutta
   inflating: zoneinfo/Asia/Oral
   inflating: zoneinfo/Asia/Pyongyang
   inflating: zoneinfo/Asia/Urumqi
   inflating: zoneinfo/Asia/Singapore
   inflating: zoneinfo/Asia/Phnom_Penh
   inflating: zoneinfo/Asia/Novokuznetsk
   inflating: zoneinfo/Asia/Kamchatka
   inflating: zoneinfo/Asia/Bahrain
   inflating: zoneinfo/Asia/Colombo
   inflating: zoneinfo/Asia/Ashkhabad
   inflating: zoneinfo/Asia/Muscat
   inflating: zoneinfo/Asia/Irkutsk
   inflating: zoneinfo/Asia/Hebron
   inflating: zoneinfo/Asia/Ulaanbaatar
   inflating: zoneinfo/Asia/Chita
   inflating: zoneinfo/Asia/Kolkata
   inflating: zoneinfo/Asia/Yangon
   inflating: zoneinfo/Asia/Srednekolymsk
   inflating: zoneinfo/Asia/Macau
   inflating: zoneinfo/Asia/Qostanay
   inflating: zoneinfo/Asia/Kuala_Lumpur
   inflating: zoneinfo/Asia/Dhaka
   inflating: zoneinfo/Asia/Magadan
   inflating: zoneinfo/Asia/Almaty
   inflating: zoneinfo/Asia/Kabul
   inflating: zoneinfo/Asia/Vientiane
   inflating: zoneinfo/Asia/Dacca
   inflating: zoneinfo/Asia/Katmandu
   inflating: zoneinfo/Asia/Rangoon
   inflating: zoneinfo/Asia/Gaza
   inflating: zoneinfo/Asia/Tashkent
   inflating: zoneinfo/Asia/Kathmandu
   inflating: zoneinfo/Asia/Hong_Kong
   inflating: zoneinfo/Asia/Hovd
   inflating: zoneinfo/Asia/Novosibirsk
   inflating: zoneinfo/Asia/Thimphu
   inflating: zoneinfo/Asia/Khandyga
   inflating: zoneinfo/Asia/Kashgar
   inflating: zoneinfo/Asia/Barnaul
   inflating: zoneinfo/Asia/Shanghai
   inflating: zoneinfo/Asia/Yakutsk
   inflating: zoneinfo/GB-Eire
   inflating: zoneinfo/GMT
    creating: zoneinfo/Brazil/
   inflating: zoneinfo/Brazil/DeNoronha
   inflating: zoneinfo/Brazil/Acre
   inflating: zoneinfo/Brazil/East
   inflating: zoneinfo/Brazil/West
    creating: zoneinfo/Etc/
   inflating: zoneinfo/Etc/UCT
   inflating: zoneinfo/Etc/Universal
   inflating: zoneinfo/Etc/GMT-9
   inflating: zoneinfo/Etc/GMT
   inflating: zoneinfo/Etc/GMT+6
   inflating: zoneinfo/Etc/GMT+10
   inflating: zoneinfo/Etc/GMT-8
   inflating: zoneinfo/Etc/GMT-2
   inflating: zoneinfo/Etc/GMT-7
   inflating: zoneinfo/Etc/GMT+8
   inflating: zoneinfo/Etc/GMT+7
   inflating: zoneinfo/Etc/GMT+1
   inflating: zoneinfo/Etc/GMT-13
   inflating: zoneinfo/Etc/GMT-0
   inflating: zoneinfo/Etc/GMT+12
   inflating: zoneinfo/Etc/Greenwich
   inflating: zoneinfo/Etc/Zulu
   inflating: zoneinfo/Etc/UTC
   inflating: zoneinfo/Etc/GMT-12
   inflating: zoneinfo/Etc/GMT-3
   inflating: zoneinfo/Etc/GMT-6
   inflating: zoneinfo/Etc/GMT+2
   inflating: zoneinfo/Etc/GMT-10
   inflating: zoneinfo/Etc/GMT+9
   inflating: zoneinfo/Etc/GMT+3
   inflating: zoneinfo/Etc/GMT+4
   inflating: zoneinfo/Etc/GMT+5
   inflating: zoneinfo/Etc/GMT-5
   inflating: zoneinfo/Etc/GMT-4
   inflating: zoneinfo/Etc/GMT-11
   inflating: zoneinfo/Etc/GMT-1
   inflating: zoneinfo/Etc/GMT0
   inflating: zoneinfo/Etc/GMT-14
   inflating: zoneinfo/Etc/GMT+0
   inflating: zoneinfo/Etc/GMT+11
   inflating: zoneinfo/Navajo
   inflating: zoneinfo/iso3166.tab
   inflating: zoneinfo/Hongkong
    creating: zoneinfo/Arctic/
   inflating: zoneinfo/Arctic/Longyearbyen
   inflating: zoneinfo/GMT-0
   inflating: zoneinfo/Iran
   inflating: zoneinfo/WET
   inflating: zoneinfo/Greenwich
   inflating: zoneinfo/ROK
   inflating: zoneinfo/Zulu
   inflating: zoneinfo/UTC
   inflating: zoneinfo/EST
   inflating: zoneinfo/PRC
    creating: zoneinfo/Indian/
   inflating: zoneinfo/Indian/Maldives
   inflating: zoneinfo/Indian/Mauritius
   inflating: zoneinfo/Indian/Antananarivo
   inflating: zoneinfo/Indian/Kerguelen
   inflating: zoneinfo/Indian/Comoro
   inflating: zoneinfo/Indian/Mayotte
   inflating: zoneinfo/Indian/Chagos
   inflating: zoneinfo/Indian/Reunion
   inflating: zoneinfo/Indian/Christmas
   inflating: zoneinfo/Indian/Cocos
   inflating: zoneinfo/Indian/Mahe
   inflating: zoneinfo/MST7MDT
   inflating: zoneinfo/Japan
   inflating: zoneinfo/Iceland
   inflating: zoneinfo/zone.tab
   inflating: zoneinfo/Jamaica
   inflating: zoneinfo/Singapore
   inflating: zoneinfo/HST
   inflating: zoneinfo/NZ
    creating: zoneinfo/US/
   inflating: zoneinfo/US/Indiana-Starke
   inflating: zoneinfo/US/Samoa
   inflating: zoneinfo/US/Pacific
   inflating: zoneinfo/US/Aleutian
   inflating: zoneinfo/US/East-Indiana
   inflating: zoneinfo/US/Michigan
   inflating: zoneinfo/US/Arizona
   inflating: zoneinfo/US/Hawaii
   inflating: zoneinfo/US/Mountain
   inflating: zoneinfo/US/Pacific-New
   inflating: zoneinfo/US/Eastern
   inflating: zoneinfo/US/Central
   inflating: zoneinfo/US/Alaska
    creating: zoneinfo/Chile/
   inflating: zoneinfo/Chile/Continental
   inflating: zoneinfo/Chile/EasterIsland
   inflating: zoneinfo/GB
   inflating: zoneinfo/CST6CDT
   inflating: zoneinfo/Eire
   inflating: zoneinfo/Turkey
   inflating: zoneinfo/NZ-CHAT
    creating: zoneinfo/Canada/
   inflating: zoneinfo/Canada/Pacific
   inflating: zoneinfo/Canada/Atlantic
   inflating: zoneinfo/Canada/Newfoundland
   inflating: zoneinfo/Canada/Yukon
   inflating: zoneinfo/Canada/Saskatchewan
   inflating: zoneinfo/Canada/Mountain
   inflating: zoneinfo/Canada/Eastern
   inflating: zoneinfo/Canada/Central
    creating: zoneinfo/America/
   inflating: zoneinfo/America/Guadeloupe
   inflating: zoneinfo/America/Guyana
   inflating: zoneinfo/America/Knox_IN
   inflating: zoneinfo/America/Rio_Branco
   inflating: zoneinfo/America/Cambridge_Bay
   inflating: zoneinfo/America/Menominee
   inflating: zoneinfo/America/Anchorage
   inflating: zoneinfo/America/Kralendijk
   inflating: zoneinfo/America/Grenada
   inflating: zoneinfo/America/Monterrey
   inflating: zoneinfo/America/Cuiaba
   inflating: zoneinfo/America/Regina
   inflating: zoneinfo/America/Toronto
   inflating: zoneinfo/America/Cayman
   inflating: zoneinfo/America/Miquelon
   inflating: zoneinfo/America/Pangnirtung
   inflating: zoneinfo/America/Dominica
   inflating: zoneinfo/America/Martinique
   inflating: zoneinfo/America/Bahia_Banderas
   inflating: zoneinfo/America/Porto_Velho
   inflating: zoneinfo/America/Nassau
   inflating: zoneinfo/America/Vancouver
   inflating: zoneinfo/America/Juneau
   inflating: zoneinfo/America/Swift_Current
   inflating: zoneinfo/America/Virgin
   inflating: zoneinfo/America/New_York
   inflating: zoneinfo/America/Montevideo
   inflating: zoneinfo/America/Boa_Vista
   inflating: zoneinfo/America/Halifax
   inflating: zoneinfo/America/Detroit
   inflating: zoneinfo/America/St_Vincent
   inflating: zoneinfo/America/Inuvik
   inflating: zoneinfo/America/Ojinaga
   inflating: zoneinfo/America/Santa_Isabel
   inflating: zoneinfo/America/Lower_Princes
   inflating: zoneinfo/America/St_Johns
   inflating: zoneinfo/America/Scoresbysund
   inflating: zoneinfo/America/Managua
   inflating: zoneinfo/America/Indianapolis
   inflating: zoneinfo/America/Recife
   inflating: zoneinfo/America/Winnipeg
   inflating: zoneinfo/America/Bahia
   inflating: zoneinfo/America/Thunder_Bay
   inflating: zoneinfo/America/Goose_Bay
   inflating: zoneinfo/America/Aruba
   inflating: zoneinfo/America/Port_of_Spain
   inflating: zoneinfo/America/Noronha
   inflating: zoneinfo/America/Santo_Domingo
   inflating: zoneinfo/America/St_Barthelemy
    creating: zoneinfo/America/Argentina/
   inflating: zoneinfo/America/Argentina/La_Rioja
   inflating: zoneinfo/America/Argentina/San_Luis
   inflating: zoneinfo/America/Argentina/San_Juan
   inflating: zoneinfo/America/Argentina/Buenos_Aires
   inflating: zoneinfo/America/Argentina/Jujuy
   inflating: zoneinfo/America/Argentina/Salta
   inflating: zoneinfo/America/Argentina/Catamarca
   inflating: zoneinfo/America/Argentina/Tucuman
   inflating: zoneinfo/America/Argentina/Rio_Gallegos
   inflating: zoneinfo/America/Argentina/Cordoba
   inflating: zoneinfo/America/Argentina/ComodRivadavia
   inflating: zoneinfo/America/Argentina/Mendoza
   inflating: zoneinfo/America/Argentina/Ushuaia
   inflating: zoneinfo/America/Puerto_Rico
    creating: zoneinfo/America/Kentucky/
   inflating: zoneinfo/America/Kentucky/Monticello
   inflating: zoneinfo/America/Kentucky/Louisville
   inflating: zoneinfo/America/Fort_Wayne
   inflating: zoneinfo/America/Santiago
   inflating: zoneinfo/America/Guayaquil
   inflating: zoneinfo/America/Araguaina
   inflating: zoneinfo/America/Merida
   inflating: zoneinfo/America/Resolute
   inflating: zoneinfo/America/Buenos_Aires
   inflating: zoneinfo/America/Hermosillo
   inflating: zoneinfo/America/Blanc-Sablon
   inflating: zoneinfo/America/Cayenne
    creating: zoneinfo/America/North_Dakota/
   inflating: zoneinfo/America/North_Dakota/Center
   inflating: zoneinfo/America/North_Dakota/Beulah
   inflating: zoneinfo/America/North_Dakota/New_Salem
   inflating: zoneinfo/America/Edmonton
   inflating: zoneinfo/America/Godthab
   inflating: zoneinfo/America/Panama
   inflating: zoneinfo/America/Montreal
   inflating: zoneinfo/America/Campo_Grande
   inflating: zoneinfo/America/Santarem
   inflating: zoneinfo/America/Coral_Harbour
   inflating: zoneinfo/America/Dawson
   inflating: zoneinfo/America/Nipigon
   inflating: zoneinfo/America/Rankin_Inlet
   inflating: zoneinfo/America/Adak
   inflating: zoneinfo/America/Antigua
   inflating: zoneinfo/America/Jujuy
   inflating: zoneinfo/America/El_Salvador
   inflating: zoneinfo/America/Fort_Nelson
   inflating: zoneinfo/America/Sitka
   inflating: zoneinfo/America/Belize
   inflating: zoneinfo/America/Maceio
   inflating: zoneinfo/America/Yakutat
   inflating: zoneinfo/America/Sao_Paulo
   inflating: zoneinfo/America/Rosario
   inflating: zoneinfo/America/Jamaica
   inflating: zoneinfo/America/Ensenada
   inflating: zoneinfo/America/Glace_Bay
   inflating: zoneinfo/America/Shiprock
   inflating: zoneinfo/America/Cancun
   inflating: zoneinfo/America/Caracas
   inflating: zoneinfo/America/Fortaleza
   inflating: zoneinfo/America/Matamoros
   inflating: zoneinfo/America/Catamarca
   inflating: zoneinfo/America/Guatemala
   inflating: zoneinfo/America/Curacao
   inflating: zoneinfo/America/La_Paz
   inflating: zoneinfo/America/Denver
   inflating: zoneinfo/America/Tegucigalpa
   inflating: zoneinfo/America/Anguilla
   inflating: zoneinfo/America/Punta_Arenas
   inflating: zoneinfo/America/Manaus
   inflating: zoneinfo/America/Bogota
   inflating: zoneinfo/America/Nome
   inflating: zoneinfo/America/Lima
   inflating: zoneinfo/America/Asuncion
   inflating: zoneinfo/America/Danmarkshavn
   inflating: zoneinfo/America/Tortola
   inflating: zoneinfo/America/Havana
   inflating: zoneinfo/America/Moncton
   inflating: zoneinfo/America/Boise
   inflating: zoneinfo/America/Thule
   inflating: zoneinfo/America/Rainy_River
   inflating: zoneinfo/America/Cordoba
   inflating: zoneinfo/America/Whitehorse
   inflating: zoneinfo/America/Marigot
   inflating: zoneinfo/America/Paramaribo
   inflating: zoneinfo/America/Costa_Rica
   inflating: zoneinfo/America/Grand_Turk
   inflating: zoneinfo/America/Mexico_City
   inflating: zoneinfo/America/Dawson_Creek
   inflating: zoneinfo/America/St_Thomas
   inflating: zoneinfo/America/Chicago
   inflating: zoneinfo/America/Creston
   inflating: zoneinfo/America/Phoenix
   inflating: zoneinfo/America/Mazatlan
   inflating: zoneinfo/America/Chihuahua
   inflating: zoneinfo/America/Montserrat
   inflating: zoneinfo/America/Louisville
   inflating: zoneinfo/America/Atikokan
    creating: zoneinfo/America/Indiana/
   inflating: zoneinfo/America/Indiana/Marengo
   inflating: zoneinfo/America/Indiana/Indianapolis
   inflating: zoneinfo/America/Indiana/Vincennes
   inflating: zoneinfo/America/Indiana/Vevay
   inflating: zoneinfo/America/Indiana/Winamac
   inflating: zoneinfo/America/Indiana/Petersburg
   inflating: zoneinfo/America/Indiana/Tell_City
   inflating: zoneinfo/America/Indiana/Knox
   inflating: zoneinfo/America/Atka
   inflating: zoneinfo/America/Iqaluit
   inflating: zoneinfo/America/Tijuana
   inflating: zoneinfo/America/Eirunepe
   inflating: zoneinfo/America/Port-au-Prince
   inflating: zoneinfo/America/Metlakatla
   inflating: zoneinfo/America/Mendoza
   inflating: zoneinfo/America/Barbados
   inflating: zoneinfo/America/Belem
   inflating: zoneinfo/America/St_Kitts
   inflating: zoneinfo/America/St_Lucia
   inflating: zoneinfo/America/Los_Angeles
   inflating: zoneinfo/America/Yellowknife
   inflating: zoneinfo/America/Porto_Acre
   inflating: zoneinfo/EST5EDT
    creating: zoneinfo/Africa/
   inflating: zoneinfo/Africa/Monrovia
   inflating: zoneinfo/Africa/Bissau
   inflating: zoneinfo/Africa/Kinshasa
   inflating: zoneinfo/Africa/Bamako
   inflating: zoneinfo/Africa/Ouagadougou
   inflating: zoneinfo/Africa/Lubumbashi
   inflating: zoneinfo/Africa/Mogadishu
   inflating: zoneinfo/Africa/Ndjamena
   inflating: zoneinfo/Africa/Ceuta
   inflating: zoneinfo/Africa/Nairobi
   inflating: zoneinfo/Africa/Malabo
   inflating: zoneinfo/Africa/Blantyre
   inflating: zoneinfo/Africa/Tripoli
   inflating: zoneinfo/Africa/Lagos
   inflating: zoneinfo/Africa/Bangui
   inflating: zoneinfo/Africa/Addis_Ababa
   inflating: zoneinfo/Africa/Accra
   inflating: zoneinfo/Africa/Maseru
   inflating: zoneinfo/Africa/Algiers
   inflating: zoneinfo/Africa/Lusaka
   inflating: zoneinfo/Africa/Abidjan
   inflating: zoneinfo/Africa/Nouakchott
   inflating: zoneinfo/Africa/Luanda
   inflating: zoneinfo/Africa/Maputo
   inflating: zoneinfo/Africa/Johannesburg
   inflating: zoneinfo/Africa/Mbabane
   inflating: zoneinfo/Africa/Windhoek
   inflating: zoneinfo/Africa/Dakar
   inflating: zoneinfo/Africa/Douala
   inflating: zoneinfo/Africa/Juba
   inflating: zoneinfo/Africa/Banjul
   inflating: zoneinfo/Africa/Dar_es_Salaam
   inflating: zoneinfo/Africa/Porto-Novo
   inflating: zoneinfo/Africa/Asmera
   inflating: zoneinfo/Africa/El_Aaiun
   inflating: zoneinfo/Africa/Conakry
   inflating: zoneinfo/Africa/Brazzaville
   inflating: zoneinfo/Africa/Tunis
   inflating: zoneinfo/Africa/Lome
   inflating: zoneinfo/Africa/Asmara
   inflating: zoneinfo/Africa/Timbuktu
   inflating: zoneinfo/Africa/Casablanca
   inflating: zoneinfo/Africa/Freetown
   inflating: zoneinfo/Africa/Bujumbura
   inflating: zoneinfo/Africa/Niamey
   inflating: zoneinfo/Africa/Cairo
   inflating: zoneinfo/Africa/Harare
   inflating: zoneinfo/Africa/Kigali
   inflating: zoneinfo/Africa/Kampala
   inflating: zoneinfo/Africa/Sao_Tome
   inflating: zoneinfo/Africa/Khartoum
   inflating: zoneinfo/Africa/Djibouti
   inflating: zoneinfo/Africa/Gaborone
   inflating: zoneinfo/Africa/Libreville
   inflating: zoneinfo/Israel
   inflating: zoneinfo/MET
    creating: zoneinfo/Mexico/
   inflating: zoneinfo/Mexico/BajaNorte
   inflating: zoneinfo/Mexico/BajaSur
   inflating: zoneinfo/Mexico/General
   inflating: zoneinfo/Libya
   inflating: zoneinfo/GMT0
   inflating: zoneinfo/ROC
    creating: zoneinfo/Antarctica/
   inflating: zoneinfo/Antarctica/Davis
   inflating: zoneinfo/Antarctica/Palmer
   inflating: zoneinfo/Antarctica/Vostok
   inflating: zoneinfo/Antarctica/Syowa
   inflating: zoneinfo/Antarctica/DumontDUrville
   inflating: zoneinfo/Antarctica/Mawson
   inflating: zoneinfo/Antarctica/Rothera
   inflating: zoneinfo/Antarctica/Casey
   inflating: zoneinfo/Antarctica/Troll
   inflating: zoneinfo/Antarctica/Macquarie
   inflating: zoneinfo/Antarctica/South_Pole
   inflating: zoneinfo/Antarctica/McMurdo
   inflating: zoneinfo/GMT+0
   inflating: zoneinfo/PST8PDT
   inflating: zoneinfo/Cuba
   inflating: zoneinfo/W-SU
 }}}

 Phew! Not a bomb!

 So, now it is up to you to find out what makes `unzip @6.0_3` believe this
 `zoneinfo.zip` (see attached) is a possibly a bomb. My guess is the
 remarkable regularity of the time zone files with respect to GMT:

 {{{
 $ ls zoneinfo/Etc/GMT*
 zoneinfo/Etc/GMT        zoneinfo/Etc/GMT+6      zoneinfo/Etc/GMT-14
 zoneinfo/Etc/GMT+0      zoneinfo/Etc/GMT+7      zoneinfo/Etc/GMT-2
 zoneinfo/Etc/GMT+1      zoneinfo/Etc/GMT+8      zoneinfo/Etc/GMT-3
 zoneinfo/Etc/GMT+10     zoneinfo/Etc/GMT+9      zoneinfo/Etc/GMT-4
 zoneinfo/Etc/GMT+11     zoneinfo/Etc/GMT-0      zoneinfo/Etc/GMT-5
 zoneinfo/Etc/GMT+12     zoneinfo/Etc/GMT-1      zoneinfo/Etc/GMT-6
 zoneinfo/Etc/GMT+2      zoneinfo/Etc/GMT-10     zoneinfo/Etc/GMT-7
 zoneinfo/Etc/GMT+3      zoneinfo/Etc/GMT-11     zoneinfo/Etc/GMT-8
 zoneinfo/Etc/GMT+4      zoneinfo/Etc/GMT-12     zoneinfo/Etc/GMT-9
 zoneinfo/Etc/GMT+5      zoneinfo/Etc/GMT-13     zoneinfo/Etc/GMT0
 }}}

 Hope you or someone upstream can find a fix. It is interesting that
 apparently no one else came across this building problem concerning `R` so
 far, but maybe the MacOS built-in `/usr/bin/unzip` is preferred on the
 buildbots (I on my old but spry 10.5.8 PPC have `/usr/bin/unzip` 5.52 as
 of 2005).

--

-- 
Ticket URL: <https://trac.macports.org/ticket/60396#comment:1>
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