问题描述
perlbrew 失败，Can't locate Devel/PatchPerl.pm.
更准确地说，失败的是由 perlbrew 生成的 patchperl 运行.
More precisely, what fails is a run of patchperl that is spawned off by perlbrew.
实际上是一个Devel/PatchPerl.pm，可以通过环境变量PERL5LIB中的路径访问，但是perlbrew 在它运行之前无条件地删除这个变量perlpatch:
There is in fact a Devel/PatchPerl.pm accessible via the paths in the environment variable PERL5LIB, but perlbrew unconditionally deletes this variable before it runs perlpatch:
delete $ENV{$_} for qw(PERL5LIB PERL5OPT);
我在 perlbrew 文档中找不到任何证明这种操作的合理性.
I can't find anything in the perlbrew documentation justifying this maneuver.
有人可以解释为什么 perlbrew 这样做吗?
Can someone explain why perlbrew does this?
下面是重现问题的 bash 脚本.我像这样运行它(使用一些合适的 ):
Below is a bash script that reproduces the problem. I run it like this (with some suitable <PATH_TO_SCRIPT>):
% env -i HOME=$HOME SHELL=/bin/bash /bin/bash --noprofile --norc
bash-3.2$ /bin/bash --norc --noprofile <PATH_TO_SCRIPT>
脚本在我的机器上的运行时间约为 4 分钟.输出的最后几行，包括显示错误的行如下:
The script's running time is about 4 minutes on my machine. The last few lines of output, including the lines showing the error are below:
(cd /tmp/perlbrew_root/build/perl-5.16.3 && rm -f config.sh Policy.sh && patchperl && sh Configure -de '-Dprefix=/tmp/perlbrew_root/perls/perl-5.16.3' '-A'eval:scriptdir=/tmp/perlbrew_root/perls/perl-5.16.3/bin'' && make && make test_harness && make install) 2>&1 | tee /tmp/perlbrew_root/build.perl-5.16.3.log
Can't locate Devel/PatchPerl.pm in @INC (@INC contains: /Library/Perl/5.12/darwin-thread-multi-2level /Library/Perl/5.12 /Network/Library/Perl/5.12/darwin-thread-multi-2level /Network/Library/Perl/5.12 /Library/Perl/Updates/5.12.3 /System/Library/Perl/5.12/darwin-thread-multi-2level /System/Library/Perl/5.12 /System/Library/Perl/Extras/5.12/darwin-thread-multi-2level /System/Library/Perl/Extras/5.12 .) at /tmp/testperl/bin/patchperl line 12.
BEGIN failed--compilation aborted at /tmp/testperl/bin/patchperl line 12.
perl-5.16.3 is successfully installed.
上面输出的最后一行(perl-5.16.3 已成功安装.)是无稽之谈:perl-5.16.3 的真正构建和安装将比这个脚本的运行时间长大约一个数量级，如前所述，在我的机器上大约需要 4 分钟.
The last line of the output above (perl-5.16.3 is successfully installed.) is nonsense: a real build and installation of perl-5.16.3 would take roughly one order of magnitude longer than this script's running time, which, as already stated, is about 4 minutes on my machine.
注意错误中的 @INC.我不知道 patchperl 怎么可能找到 Devel/PatchPerl.pm，它在 /tmp/testperl/lib/perl5 下，给定那个@INC.
Note the @INC in the error. I don't see how patchperl could possibly find Devel/PatchPerl.pm, which is under /tmp/testperl/lib/perl5, given that @INC.
PERLDIR=/tmp/testperl
/bin/rm -rf "$PERLDIR"
/bin/rm -rf /tmp/build
/bin/mkdir -p /tmp/build
cd /tmp/build
/usr/bin/curl -s http://www.cpan.org/authors/id/A/AP/APEIRON/local-lib-1.008009.tar.gz | tar xzf -
pushd local-lib-1.008009
/usr/bin/perl Makefile.PL "--bootstrap=$PERLDIR"
/usr/bin/make install
popd
eval "$( /usr/bin/perl -I$PERLDIR/lib/perl5 -Mlocal::lib=$PERLDIR )"
/usr/bin/cpan App::cpanminus
export PERLBREW_ROOT=/tmp/perlbrew_root
export PERLBREW_HOME=/tmp/perlbrew_home
/bin/rm -rf "$PERLBREW_ROOT" "$PERLBREW_HOME"
$PERLDIR/bin/cpanm App::perlbrew
$PERLDIR/bin/perlbrew init
source "$PERLBREW_ROOT/etc/bashrc"
$PERLDIR/bin/perlbrew install -v perl-5.16.3
推荐答案
Upgrade perlbrew (perlbrew self-upgrade 或 http://perlbrew.pl/).
Upgrade perlbrew (perlbrew self-upgrade or the shell bootstrap incantation from http://perlbrew.pl/).
最近的版本通过 perlbrew install-patchperl 将 patchperl 安装到 $PERLBREW_ROOT/bin.
Recent versions install patchperl into $PERLBREW_ROOT/bin through perlbrew install-patchperl.
这篇关于perlbrew 失败并显示“无法找到 Devel/PatchPerl.pm"；的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！