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Name	Size	Mode	Actions
perl.pod	16270	0644	edit dl rm
perl56delta.pod	107201	0644	edit dl rm
perl58delta.pod	115165	0644	edit dl rm
perl561delta.pod	124713	0644	edit dl rm
perl581delta.pod	38061	0644	edit dl rm
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perl5280delta.pod	72113	0644	edit dl rm
perlaix.pod	20437	0644	edit dl rm
perlamiga.pod	5749	0644	edit dl rm
perlandroid.pod	7871	0644	edit dl rm
perlapi.pod	443535	0644	edit dl rm
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perlbook.pod	8338	0644	edit dl rm
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perlbs2000.pod	8058	0644	edit dl rm
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perlce.pod	14602	0644	edit dl rm
perlcheat.pod	4481	0644	edit dl rm
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perlcn.pod	4691	0644	edit dl rm
perlcommunity.pod	7217	0644	edit dl rm
perlcygwin.pod	27199	0644	edit dl rm
perldata.pod	46743	0644	edit dl rm
perldbmfilter.pod	4981	0644	edit dl rm
perldebguts.pod	38535	0644	edit dl rm
perldebtut.pod	22152	0644	edit dl rm
perldebug.pod	39258	0644	edit dl rm
perldelta.pod	7063	0644	edit dl rm
perldeprecation.pod	18169	0644	edit dl rm
perldiag.pod	284572	0644	edit dl rm
perldos.pod	10522	0644	edit dl rm
perldsc.pod	25614	0644	edit dl rm
perldtrace.pod	7958	0644	edit dl rm
perlebcdic.pod	84233	0644	edit dl rm
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perlexperiment.pod	7195	0644	edit dl rm
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perlform.pod	16608	0644	edit dl rm
perlfreebsd.pod	1610	0644	edit dl rm
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perlgit.pod	33509	0644	edit dl rm
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perlhack.pod	40445	0644	edit dl rm
perlhacktips.pod	55509	0644	edit dl rm
perlhacktut.pod	6153	0644	edit dl rm
perlhaiku.pod	1508	0644	edit dl rm
perlhist.pod	53546	0644	edit dl rm
perlhpux.pod	30509	0644	edit dl rm
perlhurd.pod	1993	0644	edit dl rm
perlintern.pod	54572	0644	edit dl rm
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perlintro.pod	22119	0644	edit dl rm
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perljp.pod	7521	0644	edit dl rm
perlko.pod	12259	0644	edit dl rm
perllexwarn.pod	355	0644	edit dl rm
perllinux.pod	1488	0644	edit dl rm
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perlmacos.pod	1001	0644	edit dl rm
perlmacosx.pod	12060	0644	edit dl rm
perlmod.pod	26250	0644	edit dl rm
perlmodinstall.pod	12792	0644	edit dl rm
perlmodlib.pod	76482	0644	edit dl rm
perlmodstyle.pod	22575	0644	edit dl rm
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perlnetware.pod	6648	0644	edit dl rm
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perlobj.pod	35537	0644	edit dl rm
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perlopenbsd.pod	1204	0644	edit dl rm
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perlpacktut.pod	51282	0644	edit dl rm
perlperf.pod	49881	0644	edit dl rm
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perlpod.pod	22196	0644	edit dl rm
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perlpolicy.pod	25629	0644	edit dl rm
perlport.pod	87602	0644	edit dl rm
perlpragma.pod	5176	0644	edit dl rm
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perlrebackslash.pod	31817	0644	edit dl rm
perlrecharclass.pod	49029	0644	edit dl rm
perlref.pod	35304	0644	edit dl rm
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perlrepository.pod	509	0644	edit dl rm
perlrequick.pod	18497	0644	edit dl rm
perlreref.pod	14744	0644	edit dl rm
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perlrun.pod	53550	0644	edit dl rm
perlsec.pod	26184	0644	edit dl rm
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perlstyle.pod	8630	0644	edit dl rm
perlsub.pod	72967	0644	edit dl rm
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perlsynology.pod	7778	0644	edit dl rm
perlthrtut.pod	46459	0644	edit dl rm
perltie.pod	38607	0644	edit dl rm
perltoc.pod	694171	0644	edit dl rm
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perltw.pod	4477	0644	edit dl rm
perlunicode.pod	82491	0644	edit dl rm
perlunicook.pod	25488	0644	edit dl rm
perlunifaq.pod	13647	0644	edit dl rm
perluniintro.pod	38340	0644	edit dl rm
perluniprops.pod	285306	0644	edit dl rm
perlunitut.pod	7951	0644	edit dl rm
perlutil.pod	7640	0644	edit dl rm
perlvar.pod	78364	0644	edit dl rm
perlvms.pod	50823	0644	edit dl rm
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perlwin32.pod	39298	0644	edit dl rm
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perlxstypemap.pod	24001	0644	edit dl rm

Edit: /usr/share/perl5/pod/perlandroid.pod (7871B)

If you read this file _as_is_, just ignore the funny characters you
see. It is written in the POD format (see pod/perlpod.pod) which is
specially designed to be readable as is.

=head1 NAME

perlandroid - Perl under Android

=head1 SYNOPSIS

The first portions of this documents contains instructions
to cross-compile Perl for Android 2.0 and later, using the
binaries provided by Google.  The latter portion describes how to build
perl native using one of the toolchains available on the Play Store.

=head1 DESCRIPTION

This document describes how to set up your host environment when
attempting to build Perl for Android.

=head1 Cross-compilation

These instructions assume an Unixish build environment on your host system;
they've been tested on Linux and OS X, and may work on Cygwin and MSYS.
While Google also provides an NDK for Windows, these steps won't work
native there, although it may be possible to cross-compile through different
means.

If your host system's architecture is 32 bits, remember to change the
C<x86_64>'s below to C<x86>'s.  On a similar vein, the examples below
use the 4.8 toolchain; if you want to use something older or newer (for
example, the 4.4.3 toolchain included in the 8th revision of the NDK), just
change those to the relevant version.

=head2 Get the Android Native Development Kit (NDK)

You can download the NDK from L<https://developer.android.com/tools/sdk/ndk/index.html>.
You'll want the normal, non-legacy version.

=head2 Determine the architecture you'll be cross-compiling for

There's three possible options: arm-linux-androideabi for ARM,
mipsel-linux-android for MIPS, and simply x86 for x86.
As of 2014, most Android devices run on ARM, so that is generally a safe bet.

With those two in hand, you should add

$ANDROID_NDK/toolchains/$TARGETARCH-4.8/prebuilt/`uname | tr '[A-Z]' '[a-z]'`-x86_64/bin

to your C<PATH>, where C<$ANDROID_NDK> is the location where you unpacked the
NDK, and C<$TARGETARCH> is your target's architecture.

=head2 Set up a standalone toolchain

This creates a working sysroot that we can feed to Configure later.

$ export ANDROID_TOOLCHAIN=/tmp/my-toolchain-$TARGETARCH
    $ export SYSROOT=$ANDROID_TOOLCHAIN/sysroot
    $ $ANDROID_NDK/build/tools/make-standalone-toolchain.sh \
            --platform=android-9 \
            --install-dir=$ANDROID_TOOLCHAIN \
            --system=`uname | tr '[A-Z]' '[a-z]'`-x86_64 \
            --toolchain=$TARGETARCH-4.8

=head2 adb or ssh?

adb is the Android Debug Bridge.  For our purposes, it's basically a way
of establishing an ssh connection to an Android device without having to
install anything on the device itself, as long as the device is either on
the same local network as the host, or it is connected to the host through
USB.

Perl can be cross-compiled using either adb or a normal ssh connection;
in general, if you can connect your device to the host using a USB port,
or if you don't feel like installing an sshd app on your device,
you may want to use adb, although you may be forced to switch to ssh if
your device is not rooted and you're unlucky -- more on that later.
Alternatively, if you're cross-compiling to an emulator, you'll have to
use adb.

=head3 adb

To use adb, download the Android SDK from L<https://developer.android.com/sdk/index.html>.
The "SDK Tools Only" version should suffice -- if you downloaded the ADT
Bundle, you can find the sdk under F<$ADT_BUNDLE/sdk/>.

Add F<$ANDROID_SDK/platform-tools> to your C<PATH>, which should give you access
to adb.  You'll now have to find your device's name using C<adb devices>,
and later pass that to Configure through C<-Dtargethost=$DEVICE>.

However, before calling Configure, you need to check if using adb is a
viable choice in the first place.  Because Android doesn't have a F</tmp>,
nor does it allow executables in the sdcard, we need to find somewhere in
the device for Configure to put some files in, as well as for the tests
to run in. If your device is rooted, then you're good.  Try running these:

$ export TARGETDIR=/mnt/asec/perl
    $ adb -s $DEVICE shell "echo sh -c '\"mkdir $TARGETDIR\"' | su --"

Which will create the directory we need, and you can move on to the next
step.  F</mnt/asec> is mounted as a tmpfs in Android, but it's only
accessible to root.

If your device is not rooted, you may still be in luck. Try running this:

$ export TARGETDIR=/data/local/tmp/perl
    $ adb -s $DEVICE shell "mkdir $TARGETDIR"

If the command works, you can move to the next step, but beware:
B<You'll have to remove the directory from the device once you are done!
Unlike F</mnt/asec>, F</data/local/tmp> may not get automatically garbage
collected once you shut off the phone>.

If neither of those work, then you can't use adb to cross-compile to your
device.  Either try rooting it, or go for the ssh route.

=head3 ssh

To use ssh, you'll need to install and run a sshd app and set it up
properly.  There are several paid and free apps that do this rather
easily, so you should be able to spot one on the store.
Remember that Perl requires a passwordless connection, so set up a 
public key.

Note that several apps spew crap to stderr every time you
connect, which can throw off Configure.  You may need to monkeypatch
the part of Configure that creates C<run-ssh> to have it discard stderr.

Since you're using ssh, you'll have to pass some extra arguments to
Configure:

-Dtargetrun=ssh -Dtargethost=$TARGETHOST -Dtargetuser=$TARGETUSER -Dtargetport=$TARGETPORT

=head2 Configure and beyond

With all of the previous done, you're now ready to call Configure.

If using adb, a "basic" Configure line will look like this:

$ ./Configure -des -Dusedevel -Dusecrosscompile -Dtargetrun=adb \
      -Dcc=$TARGETARCH-gcc   \
      -Dsysroot=$SYSROOT     \
      -Dtargetdir=$TARGETDIR \
      -Dtargethost=$DEVICE

If using ssh, it's not too different -- we just change targetrun to ssh,
and pass in targetuser and targetport.  It ends up looking like this:

$ ./Configure -des -Dusedevel -Dusecrosscompile -Dtargetrun=ssh \
      -Dcc=$TARGETARCH-gcc        \
      -Dsysroot=$SYSROOT          \
      -Dtargetdir=$TARGETDIR      \
      -Dtargethost="$TARGETHOST"  \
      -Dtargetuser=$TARGETUSER    \
      -Dtargetport=$TARGETPORT

Now you're ready to run C<make> and C<make test>!

As a final word of warning, if you're using adb, C<make test> may appear to
hang; this is because it doesn't output anything until it finishes
running all tests.  You can check its progress by logging into the
device, moving to F<$TARGETDIR>, and looking at the file F<output.stdout>.

=head3 Notes

=over

=item *

If you are targetting x86 Android, you will have to change C<$TARGETARCH-gcc>
to C<i686-linux-android-gcc>.

=item *

On some older low-end devices -- think early 2.2 era -- some tests,
particularly F<t/re/uniprops.t>, may crash the phone, causing it to turn
itself off once, and then back on again.

=back

=head1 Native Builds

While Google doesn't provide a native toolchain for Android,
you can still get one from the Play Store; for example, there's the CCTools
app which you can get for free.
Keep in mind that you want a full
toolchain; some apps tend to default to installing only a barebones
version without some important utilities, like ar or nm.

Once you have the toolchain set up properly, the only
remaining hurdle is actually locating where in the device it was installed
in.  For example, CCTools installs its toolchain in 
F</data/data/com.pdaxrom.cctools/root/cctools>.  With the path in hand,
compiling perl is little more than:

export SYSROOT=<location of the native toolchain>
 export LD_LIBRARY_PATH="$SYSROOT/lib:`pwd`:`pwd`/lib:`pwd`/lib/auto:$LD_LIBRARY_PATH"
 sh Configure -des -Dsysroot=$SYSROOT -Alibpth="/system/lib /vendor/lib"

=head1 AUTHOR

Brian Fraser <fraserbn@gmail.com>

=cut

cmd: