perl 的 PAR::Packer 生成的二進製文件在打包到 RPM 時會中斷

我有一個 perl 腳本，我想在沒有安裝 perl 解釋器的系統上使用它（例如 linux 容器）。我用 PAR::Packer 生成了一個二進製文件，一切看起來都很好。

[0] [ishpeck@centbox03 /tmp/examply]$ file ./perlthing/scripts/hello.pl
./perlthing/scripts/hello.pl: Perl script, ASCII text executable
[0] [ishpeck@centbox03 /tmp/examply]$ cat ./perlthing/scripts/hello.pl
#!/usr/bin/perl
use strict;
use warnings;
use File::Basename;

print "Hello, world!\n"
[0] [ishpeck@centbox03 /tmp/examply]$ cat Makefile
CURDIR=/tmp/examply
TOPDIR=$(CURDIR)/packaging

rpm: perlbin
   sh -c 'for x in packaging/BUILD packaging/RPMS/x86_64 packaging/RPMS/x86 packaging/RPMS/arm packaging/SOURCES packaging/SPECS packaging/SRPMS; do mkdir -p $$x; done'
   rpmbuild --target x86_64 -bb $(TOPDIR)/SPECS/mypackage.spec --define '_topdir $(TOPDIR)' --define '_arch x86_64' --define '_working_dir $(CURDIR)'

perlbin: perlthing/binaries/hello.pl

perlthing/binaries/hello.pl: perlthing/scripts/hello.pl Makefile
   /usr/local/bin/pp -M File::** -M PAR:: --clean --verbose=2 --output=$@ $<

clean:
   rm perlthing/binaries/hello.pl

[0] [ishpeck@centbox03 /tmp/examply]$ make perlbin >/dev/null ; echo $?
0
[0] [ishpeck@centbox03 /tmp/examply]$ file perlthing/binaries/hello.pl
perlthing/binaries/hello.pl: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=7d5b38a792018d0202a96ce8645b00591e7ea7c5, stripped
[0] [ishpeck@centbox03 /tmp/examply]$ ./perlthing/binaries/hello.pl
Hello, world!

到現在為止還挺好。當我將二進製文件複製到沒有 perl 解釋器的機器時，它甚至可以工作：

core@CoreOS-1 ~ $ which perl
which: no perl in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/opt/bin)
core@CoreOS-1 ~ $ ./hello.pl
Hello, world!

我想把它打包成一個 RPM：

[0] [ishpeck@centbox03 /tmp/examply]$ cat packaging/SPECS/mypackage.spec
Name:           ishy-mypackage
Version:        0.1
Release:        1%{?dist}
Summary:        My example package

License:        MIT
URL:            http://ishpeck.net

%description
This is my example package that includes a perl script bundled as a binary via PAR::Packer

%prep
echo "Prepare scriptlet is empty"

%build
echo "Nothing really to do"

%install
rm -rf $RPM_BUILD_ROOT
mkdir -p $RPM_BUILD_ROOT/usr/local/bin/
cp %{_working_dir}/perlthing/binaries/hello.pl $RPM_BUILD_ROOT/usr/local/bin/

%files
/usr/local/bin/hello.pl
[0] [ishpeck@centbox03 /tmp/examply]$ grep rpmbuild Makefile
       rpmbuild --target x86_64 -bb $(TOPDIR)/SPECS/mypackage.spec --define '_topdir $(TOPDIR)' --define '_arch x86_64' --define '_working_dir $(CURDIR)'
[0] [ishpeck@centbox03 /tmp/examply]$ make 

但是當我安裝軟體包時，perl 二進製文件不再工作了！

[0] [ishpeck@centbox03 /tmp/examply]$ sudo rpm -i ./packaging/RPMS/x86_64/ishy-mypackage-0.1-1.el7.x86_64.rpm
[0] [ishpeck@centbox03 /tmp/examply]$ which hello.pl
/usr/local/bin/hello.pl
[0] [ishpeck@centbox03 /tmp/examply]$ hello.pl
Usage: /usr/local/bin/hello.pl [ -Alib.par ] [ -Idir ] [ -Mmodule ] [ src.par ] [ program.pl ]
/usr/local/bin/hello.pl [ -B|-b ] [-Ooutfile] src.par
Removing files in "/tmp/par-6973687065636b/temp-51174"
Undefined subroutine &File::Find::finddepth called at -e line 11.
END failed--call queue aborted at -e line 616.

我不認為這是我使用pp生成二進製文件的方式的問題，因為如果我直接複製它，它似乎無處不在。我的大腦想把責任歸咎於（我如何使用）rpmbuild，但我什至不知道從哪裡開始。

我在這裡遺漏了一些關於 rpmbuild 的神秘細節嗎？

rpmbuild 正在剝離它

預設的 rpmbuild 宏包括strip干擾任何神奇的 PAR::Packer 正在執行的命令。

如果需要您的資源，我可以在 CentOS 7 perl v5.16.3 上重現該問題。在你的規範頂部添加這個：

%global __os_install_post %{nil}

buildroot 中的二進製文件未經修改，程序可以正常工作。我不完全確定為什麼，您可能想向 Perl rpm 維護者或其他 Perl 黑客詢問詳細資訊。

---

性能側邊欄

與實際的 perl 解釋器相比，我注意到打包二進製文件的速度始終降低 100 倍。對於非平凡的程序，差異可能不太顯著。即使這個微不足道的建構大小也只有 4 MB。

我很欣賞將Swiss-Army 電鋸的強大功能引入未開化的發行版，但請注意，原生二進製文件不太可能提升性能。

引用自：https://serverfault.com/questions/957839