根据我在这里和其他地方阅读的建议，我决定停止运行sudo cpan，从而影响系统 perl，而是使用 perlbrew 来安装和管理 perl 的私有版本。
我安装了perlbrew并运行了perlbrew install perl-5.14.2，没有和有--force。两次都安装失败。以下是测试总结报告。
Test Summary Report
-------------------
../ext/POSIX/t/posix.t (Wstat: 0 Tests: 66 Failed: 0)
TODO passed: 11
../lib/locale.t (Wstat: 0 Tests: 117 Failed: 1)
Failed test: 99
Files=2089, Tests=455813, 723 wallclock secs (55.63 usr 8.56 sys + 402.42 cusr 50.30 csys = 516.91 CPU)
Result: FAIL
有没有人成功使用 perlbrew 在 OSX 10.8 上安装 Perl，谁能提出问题所在？
[更新]
我尝试安装 perl 5.12.4，得到了相同的结果。以下是一些似乎与语言环境有关的细节：
The following locales
#
# C C POSIX POSIX af_ZA af_ZA.ISO8859-1 af_ZA.ISO8859-15
# af_ZA.UTF-8 am_ET am_ET.UTF-8 be_BY be_BY.CP1131 be_BY.CP1251
# be_BY.ISO8859-5 be_BY.UTF-8 bg_BG bg_BG.CP1251 bg_BG.UTF-8
# ca_ES ca_ES.ISO8859-1 ca_ES.ISO8859-15 ca_ES.UTF-8 cs_CZ
# cs_CZ.ISO8859-2 cs_CZ.UTF-8 da_DK da_DK.ISO8859-1 da_DK.ISO8859-15
# da_DK.UTF-8 de_AT de_AT.ISO8859-1 de_AT.ISO8859-15
# de_AT.UTF-8 de_CH de_CH.ISO8859-1 de_CH.ISO8859-15
# de_CH.UTF-8 de_DE de_DE.ISO8859-1 de_DE.ISO8859-15
# de_DE.UTF-8 el_GR el_GR.ISO8859-7 el_GR.UTF-8 en_AU
# en_AU.ISO8859-1 en_AU.ISO8859-15 en_AU.US-ASCII en_AU.UTF-8
# en_CA en_CA.ISO8859-1 en_CA.ISO8859-15 en_CA.US-ASCII
# en_CA.UTF-8 en_GB en_GB.ISO8859-1 en_GB.ISO8859-15
# en_GB.US-ASCII en_GB.UTF-8 en_IE en_IE.UTF-8 en_NZ
# en_NZ.ISO8859-1 en_NZ.ISO8859-15 en_NZ.US-ASCII en_NZ.UTF-8
# en_US en_US.ISO8859-1 en_US.ISO8859-15 en_US.US-ASCII
# en_US.UTF-8 es_ES es_ES.ISO8859-1 es_ES.ISO8859-15
# es_ES.UTF-8 et_EE et_EE.ISO8859-15 et_EE.UTF-8 eu_ES
# eu_ES.ISO8859-1 eu_ES.ISO8859-15 eu_ES.UTF-8 fi_FI
# fi_FI.ISO8859-1 fi_FI.ISO8859-15 fi_FI.UTF-8 fr_BE
# fr_BE.ISO8859-1 fr_BE.ISO8859-15 fr_BE.UTF-8 fr_CA
# fr_CA.ISO8859-1 fr_CA.ISO8859-15 fr_CA.UTF-8 fr_CH
# fr_CH.ISO8859-1 fr_CH.ISO8859-15 fr_CH.UTF-8 fr_FR
# fr_FR.ISO8859-1 fr_FR.ISO8859-15 fr_FR.UTF-8 he_IL
# he_IL.UTF-8 hi_IN.ISCII-DEV hr_HR hr_HR.ISO8859-2 hr_HR.UTF-8
# hu_HU hu_HU.ISO8859-2 hu_HU.UTF-8 hy_AM hy_AM.ARMSCII-8
# hy_AM.UTF-8 is_IS is_IS.ISO8859-1 is_IS.ISO8859-15
# is_IS.UTF-8 it_CH it_CH.ISO8859-1 it_CH.ISO8859-15
# it_CH.UTF-8 it_IT it_IT.ISO8859-1 it_IT.ISO8859-15
# it_IT.UTF-8 ja_JP ja_JP.SJIS ja_JP.UTF-8 ja_JP.eucJP kk_KZ
# kk_KZ.PT154 kk_KZ.UTF-8 ko_KR ko_KR.CP949 ko_KR.UTF-8
# ko_KR.eucKR lt_LT lt_LT.ISO8859-13 lt_LT.ISO8859-4
# lt_LT.UTF-8 nl_BE nl_BE.ISO8859-1 nl_BE.ISO8859-15
# nl_BE.UTF-8 nl_NL nl_NL.ISO8859-1 nl_NL.ISO8859-15
# nl_NL.UTF-8 no_NO no_NO.ISO8859-1 no_NO.ISO8859-15
# no_NO.UTF-8 pl_PL pl_PL.ISO8859-2 pl_PL.UTF-8 pt_BR
# pt_BR.ISO8859-1 pt_BR.UTF-8 pt_PT pt_PT.ISO8859-1 pt_PT.ISO8859-15
# pt_PT.UTF-8 ro_RO ro_RO.ISO8859-2 ro_RO.UTF-8 ru_RU
# ru_RU.CP1251 ru_RU.CP866 ru_RU.ISO8859-5 ru_RU.KOI8-R
# ru_RU.UTF-8 sk_SK sk_SK.ISO8859-2 sk_SK.UTF-8 sl_SI
# sl_SI.ISO8859-2 sl_SI.UTF-8 sr_YU sr_YU.ISO8859-2 sr_YU.ISO8859-5
# sr_YU.UTF-8 sv_SE sv_SE.ISO8859-1 sv_SE.ISO8859-15
# sv_SE.UTF-8 tr_TR tr_TR.ISO8859-9 tr_TR.UTF-8 uk_UA
# uk_UA.ISO8859-5 uk_UA.KOI8-U uk_UA.UTF-8 zh_CN zh_CN.GB18030
# zh_CN.GB2312 zh_CN.GBK zh_CN.UTF-8 zh_CN.eucCN zh_HK
# zh_HK.Big5HKSCS zh_HK.UTF-8 zh_TW zh_TW.Big5 zh_TW.UTF-8
#
# tested okay.
#
# None of your locales were broken.
../lib/locale.t ...................................................
Failed 1/117 subtests
所以没有一个是“坏的”，但一个是“失败的”。这似乎阻止了安装成功，即使是强制安装。