Add (past packages perl).

* modules/past/packages/perl.scm: New file.
* modules/past/patches/perl-5.14-autosplit-default-time.patch,
modules/past/patches/perl-5.14-module-pluggable-search.patch,
modules/past/patches/perl-5.14-no-sys-dirs.patch: New patches.

modules/past/packages/perl.scm

+;;; Guix Past --- Packages from the past for GNU Guix.
+;;; Copyright © 2020 Ricardo Wurmus <rekado@elephly.net>
+;;;
+;;; This file is part of Guix Past.
+;;;
+;;; Guix Past is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; Guix Past is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with Guix Past.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (past packages perl)
+  #:use-module (guix)
+  #:use-module (guix build-system gnu)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (gnu packages))
+
+(define-public perl-5.14
+  (package
+    (name "perl")
+    (version "5.14.4")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://cpan/src/5.0/perl-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "1js47zzna3v38fjnirf2vq6y0rjp8m86ysj5vagzgkig956d8gw0"))
+              (patches (search-patches
+                        "past/patches/perl-5.14-no-sys-dirs.patch"
+                        "past/patches/perl-5.14-autosplit-default-time.patch"
+                        "past/patches/perl-5.14-module-pluggable-search.patch"))))
+    (properties `((release-date . "2011-05-14")))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (replace 'configure
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let ((out  (assoc-ref outputs "out"))
+                   (libc (assoc-ref inputs "libc")))
+               ;; Use the right path for `pwd'.
+               (substitute* "dist/Cwd/Cwd.pm"
+                 (("/bin/pwd")
+                  (which "pwd")))
+
+               (invoke "./Configure"
+                       (string-append "-Dprefix=" out)
+                       (string-append "-Dman1dir=" out "/share/man/man1")
+                       (string-append "-Dman3dir=" out "/share/man/man3")
+                       "-de" "-Dcc=gcc"
+                       "-Uinstallusrbinperl"
+                       "-Dinstallstyle=lib/perl5"
+                       "-Duseshrplib"
+                       (string-append "-Dlocincpth=" libc "/include")
+                       (string-append "-Dloclibpth=" libc "/lib")
+
+                       ;; Force the library search path to contain only libc
+                       ;; because it is recorded in Config.pm and
+                       ;; Config_heavy.pl; we don't want to keep a reference
+                       ;; to everything that's in $LIBRARY_PATH at build
+                       ;; time (Binutils, bzip2, file, etc.)
+                       (string-append "-Dlibpth=" libc "/lib")
+                       (string-append "-Dplibpth=" libc "/lib")))))
+
+         (add-before 'strip 'make-shared-objects-writable
+           (lambda* (#:key outputs #:allow-other-keys)
+             ;; The 'lib/perl5' directory contains ~50 MiB of .so.  Make them
+             ;; writable so that 'strip' actually strips them.
+             (let* ((out (assoc-ref outputs "out"))
+                    (lib (string-append out "/lib")))
+               (for-each (lambda (dso)
+                           (chmod dso #o755))
+                         (find-files lib "\\.so$"))
+               #t))))))
+    (native-search-paths (list (search-path-specification
+                                (variable "PERL5LIB")
+                                (files '("lib/perl5/site_perl")))))
+    (home-page "https://www.perl.org/")
+    (synopsis "Implementation of the Perl programming language")
+    (description
+     "Perl is a general-purpose programming language originally developed for
+text manipulation and now used for a wide range of tasks including system
+administration, web development, network programming, GUI development, and
+more.")
+    (license license:gpl1+)))

modules/past/patches/perl-5.14-autosplit-default-time.patch

+AutoSplit will fail to create an index for files whose modification time is 0
+because its default time for a non-existent index is 1.  Set this default time
+to -1 instead.
+
+--- perl-5.16.1/cpan/AutoLoader/lib/AutoSplit.pm.orig	2012-02-14 22:44:36.000000000 -0600
++++ perl-5.16.1/cpan/AutoLoader/lib/AutoSplit.pm	2015-09-09 19:59:22.208708921 -0500
+@@ -361,7 +361,7 @@
+     my($al_idx_file) = catfile($autodir, $modpname, $IndexFile);
+ 
+     if ($check_mod_time){
+-	my($al_ts_time) = (stat("$al_idx_file"))[9] || 1;
++	my($al_ts_time) = (stat("$al_idx_file"))[9] || -1;
+ 	if ($al_ts_time >= $pm_mod_time and
+ 	    $al_ts_time >= $self_mod_time){
+ 	    print "AutoSplit skipped ($al_idx_file newer than $filename)\n"

modules/past/patches/perl-5.14-module-pluggable-search.patch

+Fix core Perl module Module::Pluggable such that it can find plugins that live
+in symlinked directories.
+
+Patch borrowed/adapted from Nixpkgs.
+
+--- perl-5.16.1/cpan/Module-Pluggable/lib/Module/Pluggable/Object.pm	2015-04-08 23:28:48.120164135 -0500
++++ perl-5.16.1/cpan/Module-Pluggable/lib/Module/Pluggable/Object.pm	2015-04-08 23:30:27.032166704 -0500
+@@ -164,7 +164,7 @@
+         my $sp = catdir($dir, (split /::/, $searchpath));
+ 
+         # if it doesn't exist or it's not a dir then skip it
+-        next unless ( -e $sp && -d _ ); # Use the cached stat the second time
++        next unless ( -e $sp );
+ 
+         my @files = $self->find_files($sp);
+ 
+@@ -279,7 +279,7 @@
+                              (my $path = $File::Find::name) =~ s#^\\./##;
+                              push @files, $path;
+                            }
+-                      }, $search_path );
++                      }, "$search_path/." );
+     }
+     #chdir $cwd;
+     return @files;

modules/past/patches/perl-5.14-no-sys-dirs.patch

+Don't long for headers and libraries in "traditional" locations.
+
+Patch from Nixpkgs by Eelco Dolstra <eelco.dolstra@logicblox.com>.
+
+diff -ru -x '*~' perl-5.14.2-orig/Configure perl-5.14.2/Configure
+--- perl-5.14.2-orig/Configure	2011-09-26 11:44:34.000000000 +0200
++++ perl-5.14.2/Configure	2012-01-20 17:05:23.089223129 +0100
+@@ -106,15 +106,7 @@
+ fi
+ 
+ : Proper PATH setting
+-paths='/bin /usr/bin /usr/local/bin /usr/ucb /usr/local /usr/lbin'
+-paths="$paths /opt/bin /opt/local/bin /opt/local /opt/lbin"
+-paths="$paths /usr/5bin /etc /usr/gnu/bin /usr/new /usr/new/bin /usr/nbin"
+-paths="$paths /opt/gnu/bin /opt/new /opt/new/bin /opt/nbin"
+-paths="$paths /sys5.3/bin /sys5.3/usr/bin /bsd4.3/bin /bsd4.3/usr/ucb"
+-paths="$paths /bsd4.3/usr/bin /usr/bsd /bsd43/bin /opt/ansic/bin /usr/ccs/bin"
+-paths="$paths /etc /usr/lib /usr/ucblib /lib /usr/ccs/lib"
+-paths="$paths /sbin /usr/sbin /usr/libexec"
+-paths="$paths /system/gnu_library/bin"
++paths=''
+ 
+ for p in $paths
+ do
+@@ -1311,8 +1303,7 @@
+ archname=''
+ : Possible local include directories to search.
+ : Set locincpth to "" in a hint file to defeat local include searches.
+-locincpth="/usr/local/include /opt/local/include /usr/gnu/include"
+-locincpth="$locincpth /opt/gnu/include /usr/GNU/include /opt/GNU/include"
++locincpth=""
+ :
+ : no include file wanted by default
+ inclwanted=''
+@@ -1328,17 +1319,12 @@
+ archobjs=''
+ libnames=''
+ : change the next line if compiling for Xenix/286 on Xenix/386
+-xlibpth='/usr/lib/386 /lib/386'
++xlibpth=''
+ : Possible local library directories to search.
+-loclibpth="/usr/local/lib /opt/local/lib /usr/gnu/lib"
+-loclibpth="$loclibpth /opt/gnu/lib /usr/GNU/lib /opt/GNU/lib"
++loclibpth=""
+ 
+ : general looking path for locating libraries
+-glibpth="/lib /usr/lib $xlibpth"
+-glibpth="$glibpth /usr/ccs/lib /usr/ucblib /usr/local/lib"
+-test -f /usr/shlib/libc.so && glibpth="/usr/shlib $glibpth"
+-test -f /shlib/libc.so     && glibpth="/shlib $glibpth"
+-test -d /usr/lib64         && glibpth="$glibpth /lib64 /usr/lib64 /usr/local/lib64"
++glibpth=""
+ 
+ : Private path used by Configure to find libraries.  Its value
+ : is prepended to libpth. This variable takes care of special
+@@ -1371,8 +1357,6 @@
+ libswanted="$libswanted m crypt sec util c cposix posix ucb bsd BSD"
+ : We probably want to search /usr/shlib before most other libraries.
+ : This is only used by the lib/ExtUtils/MakeMaker.pm routine extliblist.
+-glibpth=`echo " $glibpth " | sed -e 's! /usr/shlib ! !'`
+-glibpth="/usr/shlib $glibpth"
+ : Do not use vfork unless overridden by a hint file.
+ usevfork=false
+ 
+@@ -2380,7 +2364,6 @@
+ zip
+ "
+ pth=`echo $PATH | sed -e "s/$p_/ /g"`
+-pth="$pth /lib /usr/lib"
+ for file in $loclist; do
+ 	eval xxx=\$$file
+ 	case "$xxx" in
+@@ -4785,7 +4768,7 @@
+ : Set private lib path
+ case "$plibpth" in
+ '') if ./mips; then
+-		plibpth="$incpath/usr/lib /usr/local/lib /usr/ccs/lib"
++		plibpth="$incpath/usr/lib"
+ 	fi;;
+ esac
+ case "$libpth" in
+@@ -8390,13 +8373,8 @@
+ echo " "
+ case "$sysman" in
+ '') 
+-	syspath='/usr/share/man/man1 /usr/man/man1'
+-	syspath="$syspath /usr/man/mann /usr/man/manl /usr/man/local/man1"
+-	syspath="$syspath /usr/man/u_man/man1"
+-	syspath="$syspath /usr/catman/u_man/man1 /usr/man/l_man/man1"
+-	syspath="$syspath /usr/local/man/u_man/man1 /usr/local/man/l_man/man1"
+-	syspath="$syspath /usr/man/man.L /local/man/man1 /usr/local/man/man1"
+-	sysman=`./loc . /usr/man/man1 $syspath`
++	syspath=''
++	sysman=''
+ 	;;
+ esac
+ if $test -d "$sysman"; then
+@@ -19721,9 +19699,10 @@
+ case "$full_ar" in
+ '') full_ar=$ar ;;
+ esac
++full_ar=ar
+ 
+ : Store the full pathname to the sed program for use in the C program
+-full_sed=$sed
++full_sed=sed
+ 
+ : see what type gids are declared as in the kernel
+ echo " "
+diff -ru -x '*~' perl-5.14.2-orig/ext/Errno/Errno_pm.PL perl-5.14.2/ext/Errno/Errno_pm.PL
+--- perl-5.14.2-orig/ext/Errno/Errno_pm.PL	2011-09-26 11:44:34.000000000 +0200
++++ perl-5.14.2/ext/Errno/Errno_pm.PL	2012-01-20 17:02:07.938138311 +0100
+@@ -137,11 +137,7 @@
+ 	if ($dep =~ /(\S+errno\.h)/) {
+ 	     $file{$1} = 1;
+ 	}
+-    } elsif ($^O eq 'linux' &&
+-	      $Config{gccversion} ne '' && 
+-	      $Config{gccversion} !~ /intel/i
+-	      # might be using, say, Intel's icc
+-	     ) {
++    } elsif (0) {
+ 	# Some Linuxes have weird errno.hs which generate
+ 	# no #file or #line directives
+ 	my $linux_errno_h = -e '/usr/include/errno.h' ?
+diff -ru -x '*~' perl-5.14.2-orig/hints/freebsd.sh perl-5.14.2/hints/freebsd.sh
+--- perl-5.14.2-orig/hints/freebsd.sh	2011-09-19 15:18:22.000000000 +0200
++++ perl-5.14.2/hints/freebsd.sh	2012-01-20 17:10:37.267924044 +0100
+@@ -118,21 +118,21 @@
+         objformat=`/usr/bin/objformat`
+         if [ x$objformat = xaout ]; then
+             if [ -e /usr/lib/aout ]; then
+-                libpth="/usr/lib/aout /usr/local/lib /usr/lib"
+-                glibpth="/usr/lib/aout /usr/local/lib /usr/lib"
++                libpth=""
++                glibpth=""
+             fi
+             lddlflags='-Bshareable'
+         else
+-            libpth="/usr/lib /usr/local/lib"
+-            glibpth="/usr/lib /usr/local/lib"
++            libpth=""
++            glibpth=""
+             ldflags="-Wl,-E "
+             lddlflags="-shared "
+         fi
+         cccdlflags='-DPIC -fPIC'
+         ;;
+ *)
+-       libpth="/usr/lib /usr/local/lib"
+-       glibpth="/usr/lib /usr/local/lib"
++       libpth=""
++       glibpth=""
+        ldflags="-Wl,-E "
+         lddlflags="-shared "
+         cccdlflags='-DPIC -fPIC'