Here is the way to have your AZERTY macbook or macbook pro keyboard on your favorite linux distribution (I tried on a Debian, it's great!).

It's very easy to do :

1/ Edit the /usr/share/X11/xkb/rules/base :

Replace the line : 

$macbooks      =       macintosh+macintosh(badmap)

with 

$macbooks      =       macintosh+macintosh(goodmap)

Replace the line : 

$maclaptop    =  +inet(apple)+level3(enter_switch)

with 

$maclaptop    =  +inet(apple)+level3(win_switch)

2/ Now, in the /etc/X11/xorg.conf file, edit the InputDevice Section : 

Section "InputDevice"
    Identifier      "Generic Keyboard"
    Driver          "kbd"
    Option          "CoreKeyboard"
    Option          "XkbRules"      "xorg"
    Option          "XkbModel"      "macbook79"
    Option          "XkbLayout"     "fr"
EndSection

You have just to restart X (reboot if you don't know how), and it works !!!

Hint : many caracters like the pipe have to be done with the Apple key (Pomme) (pipe = apple + shift + l)

Enjoy !