MAC WITH DEBIAN VM CROSS COMPILER FOR RPI

! Install Instructions

ON THE RPI (if you haven't downloaded openFrameworks)

$ cd
$ curl -O http://www.openframeworks.cc/versions/v0.8.4/of_v0.8.4_linuxarmv6l_release.tar.gz
$ mkdir openFrameworks
$ tar vxfz of_v0.8.4_linuxarmv6l_release.tar.gz -C openFrameworks --strip-components 1
$ cd /home/pi/openFrameworks/scripts/linux/debian_armv6l
$ sudo ./install_dependencies.sh

ON THE MAC:

INSTALL VIRTUALBOX

INSTALL DEBIAN 32BIT SQUEEZE
http://gensho.acc.umu.se/cdimage/archive/7.6.0-live/i386/iso-hybrid/debian-live-7.6.0-i386-standard.iso

Use Bridge Mode (allows access to local network without NAT)
No Desktop Needed

ON THE DEBIAN VM:

NOTE:BELOW INSTRUCTIONS USE pi AS DEBIAN USER

ADD USER TO ROOT GROUP SO CAN USE APT-GET
$ su
$ visudo

# User privilege specification
root    ALL=(ALL:ALL) ALL
pi ALL=(ALL:ALL) ALL

$ apt-get install debian-keyring debian-archive-keyring
# apt-key update

Virtualbox will try and boot into PAE mode by default which crashes
$ sudo nano /etc/default/grub
GRUB_DEFAULT=2
$ sudo update-grub

STOP APT FROM LOOKING AT CD FOR UPDATES
$ sudo nano /etc/apt/sources.list

comment out using # or delete line
# deb cdrom:[Debian GNU/Linux 7 _Wheezy_ - Official Snapshot i386 LIVE/INSTALL Binary 20140723-18:00]/ wheezy main

$ sudo apt-get update

MOUNT PI ON DEBIAN
Assumes Pi has Samba server running with mount point as /
https://gist.github.com/jvcleave/f41132324ca75c2268f9

$ sudo apt-get install cifs-utils
$ sudo mkdir /media/Data

$ sudo nano /etc/fstab

ADD LINE (jvcrpi.local is RPi Network address - can be IP)

//jvcrpi.local/Data /media/Data cifs credentials=/home/pi/.smbcredentials,iocharset=utf8 0 0

CREATE FILE TO STORE SMB USER/PASS

$ nano /home/pi/.smbcredentials

#RPi samba user/pass
username=pi
password=pi

MOUNT PI
$ sudo mount -a

TEST
$ ls -al /media/Data


SETUP COMPILER

cd
sudo apt-get install git
git clone git://github.com/raspberrypi/tools.git --depth=1
mv tools/ RPI_TOOLS

mkdir RPI_ROOT
mkdir -p RPI_ROOT/usr/include
mkdir -p RPI_ROOT/usr/lib
mkdir -p RPI_ROOT/usr/share


cp -Rv /media/Data/usr/include RPI_ROOT/usr/ 
cp -Rv /media/Data/usr/lib RPI_ROOT/usr/
cp -Rv /media/Data/usr/share RPI_ROOT/usr/

cd RPI_ROOT

ln -s /media/Data/etc/ etc
ln -s /media/Data/lib/ lib
ln -s /media/Data/opt/ opt

//SET ENVIRONMENT VARIABLES
export GST_VERSION=1.0
export RPI_ROOT=/home/pi/RPI_ROOT
export RPI_TOOLS=/home/pi/RPI_TOOLS
export PLATFORM_OS=Linux
export PLATFORM_ARCH=armv6l
export PKG_CONFIG_PATH=$RPI_ROOT/usr/lib/arm-linux-gnueabihf/pkgconfig:$RPI_ROOT/usr/share/pkgconfig:$RPI_ROOT/usr/lib/pkgconfig


//FIX ABSOLUTE PATHS IN ~/RPI_ROOT/usr/libs
cd 
wget https://gist.githubusercontent.com/jvcleave/8489b3ec5897eb1a26a2/raw/bafa359d35123c7941447f480a09e0fe0e94f151/fixQualifiedLibraryPaths.sh
chmod +x fixQualifiedLibraryPaths.sh
sudo ./fixQualifiedLibraryPaths.sh $RPI_ROOT $RPI_TOOLS/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf-g++

//INSTALL COMPILER
sudo apt-get install pkg-config make build-essential

TRY AND COMPILE
$ cd /media/Data/home/pi/openFrameworks/apps/myApps/emptyExample
$ make -j6 RPI_TOOLS=$RPI_TOOLS RPI_ROOT=$RPI_ROOT GST_VERSION=1.0 PLATFORM_OS=Linux PLATFORM_ARCH=armv6l

OPTIONAL

MAKE ENVIRONMENT VARIABLES PERMANENT 
$ cd
$ nano .profile

ADD LINES

export GST_VERSION=1.0
export RPI_ROOT=/home/pi/RPI_ROOT
export RPI_TOOLS=/home/pi/RPI_TOOLS
export PLATFORM_OS=Linux
export PLATFORM_ARCH=armv6l
export PKG_CONFIG_PATH=$RPI_ROOT/usr/lib/arm-linux-gnueabihf/pkgconfig:$RPI_ROOT/usr/share/pkgconfig:$RPI_ROOT/usr/lib/pkgconfig
export MAKEFLAGS="-j 6 "


$ source .profile

YOU CAN NOW JUST COMPILE WITH make

$ cd /media/Data/home/pi/openFrameworks/apps/myApps/emptyExample
$ make


TROUBLESHOOTING
If you get errors the key offender is that some libraries in RPI_ROOT are linked with absolute paths. This should have been fixed with the running of fixQualifiedLibraryPaths.sh but there could possibly be exceptions

The way to fix is to find the link (e.g. with libm)

$ find ~/RPI_ROOT/ -name libm.so
 #returned /home/pi/RPI_ROOT/usr/lib/arm-linux-gnueabihf/libm.so

$ cd /home/pi/RPI_ROOT/usr/lib/arm-linux-gnueabihf/
$ rm libm.so
$ ln -s ../../../lib/arm-linux-gnueabihf/libm.so.6 libm.so

fixQualifiedLibraryPaths.sh

#!/bin/bash
#This script is ugly, feel free to fix it

if [ "$#" -ne 2 ]; then
    echo "usage ./cmd target-rootfs target-toolchain"
    exit -1
fi

#passed args
ROOTFS=$1
TOOLCHAIN=$2

if [ -x $TOOLCHAIN ]; then
    echo "Passed valid toolchain"
    MACHINE=$($TOOLCHAIN -dumpmachine)
    DEB_MULTI_ARCH_MADNESS=$ROOTFS/usr/lib/$MACHINE
fi

CURRENTDIR=$PWD

function adjustSymLinks
{
    echo "Adjusting the symlinks in $1 to be relative"
    cd $1
    find . -maxdepth 1 -type l | while read i;
    do qualifies=$(file $i | sed -e "s/.*\`\(.*\)'/\1/g" | grep ^/lib)
    if [ -n "$qualifies" ]; then
    newPath=$(file $i | sed -e "s/.*\`\(.*\)'/\1/g" | sed -e "s,\`,,g" | sed -e "s,',,g" | sed -e "s,^/lib,$2/lib,g");
    echo $i
    echo $newPath;
    sudo rm $i;
    sudo ln -s $newPath $i;
    fi
    done
}

adjustSymLinks $ROOTFS/usr/lib "../.."

if [ -n "$DEB_MULTI_ARCH_MADNESS" -a -d "$DEB_MULTI_ARCH_MADNESS" ]; then
    echo "Debian multiarch dir exists, adjusting"
    adjustSymLinks $DEB_MULTI_ARCH_MADNESS "../../.."
fi

cd $CURRENTDIR

https://www.privateinternetaccess.com/forum/discussion/18063/debian-8-1-0-jessie-sudo-fix-not-installed-by-default

Adjusting the symlinks in /home/pi/RPI_ROOT/usr/lib/arm-linux-gnueabihf to be relative
./libglib-2.0.so
../../../lib/arm-linux-gnueabihf/libglib-2.0.so.0
./libusb-0.1.so.4
../../../lib/arm-linux-gnueabihf/libusb-0.1.so.4
./libnss_files.so
../../../lib/arm-linux-gnueabihf/libnss_files.so.2
./librt.so
../../../lib/arm-linux-gnueabihf/librt.so.1
./libusb-1.0.so
../../../lib/arm-linux-gnueabihf/libusb-1.0.so.0.1.0
./libutil.so
../../../lib/arm-linux-gnueabihf/libutil.so.1
./libexpat.so
../../../lib/arm-linux-gnueabihf/libexpat.so.1.6.0
./libanl.so
../../../lib/arm-linux-gnueabihf/libanl.so.1
./libcidn.so
../../../lib/arm-linux-gnueabihf/libcidn.so.1
./libnss_dns.so
../../../lib/arm-linux-gnueabihf/libnss_dns.so.2
./libcrypt.so
../../../lib/arm-linux-gnueabihf/libcrypt.so.1
./libnss_compat.so
../../../lib/arm-linux-gnueabihf/libnss_compat.so.2
./libnss_nisplus.so
../../../lib/arm-linux-gnueabihf/libnss_nisplus.so.2
./liblzma.so
../../../lib/arm-linux-gnueabihf/liblzma.so.5.0.0
./libthread_db.so
../../../lib/arm-linux-gnueabihf/libthread_db.so.1
./libm.so
../../../lib/arm-linux-gnueabihf/libm.so.6
./libdbus-1.so
../../../lib/arm-linux-gnueabihf/libdbus-1.so.3.8.13
./libpcre.so
../../../lib/arm-linux-gnueabihf/libpcre.so.3
./libBrokenLocale.so
../../../lib/arm-linux-gnueabihf/libBrokenLocale.so.1
./libnss_nis.so
../../../lib/arm-linux-gnueabihf/libnss_nis.so.2
./libnss_hesiod.so
../../../lib/arm-linux-gnueabihf/libnss_hesiod.so.2
./libresolv.so
../../../lib/arm-linux-gnueabihf/libresolv.so.2
./libudev.so
../../../lib/arm-linux-gnueabihf/libudev.so.1.5.0
./libnsl.so
../../../lib/arm-linux-gnueabihf/libnsl.so.1
./libz.so
../../../lib/arm-linux-gnueabihf/libz.so.1.2.8
./libdl.so
../../../lib/arm-linux-gnueabihf/libdl.so.2
./libpng12.so.0
../../../lib/arm-linux-gnueabihf/libpng12.so.0