distro: Add Perl.

* distro/base.scm (perl): New variable.
* distro/patches/perl-no-sys-dirs.patch: New file.
* Makefile.am (dist_patch_DATA): Add it.

Makefile.am

@@ -48,6 +48,7 @@ dist_patch_DATA =					\
   distro/patches/m4-s_isdir.patch			\
   distro/patches/make-impure-dirs.patch			\
   distro/patches/findutils-absolute-paths.patch		\
+  distro/patches/perl-no-sys-dirs.patch			\
   distro/patches/readline-link-ncurses.patch		\
   distro/patches/tar-gets-undeclared.patch
 

distro/base.scm

@@ -185,6 +185,56 @@ files (as archives).")
    (license "GPLv3+")
    (home-page "http://www.gnu.org/software/tar/")))
 
+(define-public perl
+  ;; Yeah, Perl...  It is required early in the bootstrap process by Linux.
+  (package
+    (name "perl")
+    (version "5.16.1")
+    (source (origin
+             (method http-fetch)
+             (uri (string-append "http://www.cpan.org/src/5.0/perl-"
+                                 version ".tar.gz"))
+             (sha256
+              (base32
+               "15qxzba3a50c9nik5ydgyfp62x7h9vxxn12yd1jgl93hb1wj96km"))))
+    (build-system gnu-build-system)
+    (arguments
+     (lambda (system)
+       `(#:tests? #f
+         #:patches (list (assoc-ref %build-inputs "patch/no-sys-dirs"))
+         #:phases
+         (alist-replace
+          'configure
+          (lambda* (#:key inputs outputs #:allow-other-keys)
+            (let ((out  (assoc-ref outputs "out"))
+                  (libc (assoc-ref inputs "libc"))
+                  (pwd  (search-path (search-path-as-string->list
+                                      (getenv "PATH"))
+                                     "pwd")))
+              ;; Use the right path for `pwd'.
+              (substitute* "dist/Cwd/Cwd.pm"
+                (("/bin/pwd") pwd))
+
+              (zero?
+               (system* "/bin/sh" "./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")))))
+          %standard-phases))))
+    (inputs `(("patch/no-sys-dirs" ,(search-patch "perl-no-sys-dirs.patch"))))
+    (description "Implementation of the Perl programming language")
+    (long-description
+     "Perl 5 is a highly capable, feature-rich programming language with over
+24 years of development.")
+    (home-page "http://www.perl.org/")
+    (license "GPLv1+")))                          ; or "Artistic"
+
 (define-public gzip
   (package
    (name "gzip")
@@ -946,7 +996,7 @@ modification.")
               "0649qfpzkswgcj9vqkkr9rn4nlcx80faxpyqscy2k1x9c94f93dk"))))
    (build-system gnu-build-system)
    (native-inputs `(("m4" ,m4)
-                    ("perl" ,(nixpkgs-derivation* "perl"))))
+                    ("perl" ,perl)))
    (description "GNU Libtool, a generic library support script")
    (long-description
     "GNU libtool is a generic library support script.  Libtool hides the
@@ -1191,7 +1241,7 @@ call interface, and powerful string processing.")
               (base32
                "0i74jn47f6vs5kcvk8abvz3k08z32c9bbqw0sdjkdxwvr4jbczpv"))))
     (build-system gnu-build-system)
-    (native-inputs `(("perl" ,(nixpkgs-derivation* "perl"))))
+    (native-inputs `(("perl" ,perl)))
     (arguments
      `(#:modules ((guix build gnu-build-system)
                   (guix build utils)

distro/patches/perl-no-sys-dirs.patch

@@ -0,0 +1,156 @@
+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'