https://bugs.freedesktop.org/show_bug.cgi?id=8660
handle the left contrl/option/apple keys properly.
apple+tab switches window
alt+e gives euro, alt+l gives @, etc

================================================================================
--- rules/base.ml_s.part
+++ rules/base.ml_s.part
@@ -20,7 +20,7 @@
   macintosh_old	$nonlatin		=	macintosh_vndr/us(oldmac)+%l%(v):2
   macintosh_old	*			=	macintosh_vndr/us(oldmac)+%l%(v)
  $macs		en_US			=	pc+macintosh_vndr/us(extended)
- $macs		$macvendorlayouts	=	pc+macintosh_vndr/%l%(v)
+ $macs		$macvendorlayouts	=	pc+macintosh_vndr/%l%(v)+altwin(swap_lalt_lwin)+level3(alt_switch)
   olpc		$olpclayouts		=	olpc+%l%(m)
   olpc		*			=	olpc+%l%(v)
  $thinkpads   	br			=	pc+br(thinkpad)
--- rules/base.ml1_s.part
+++ rules/base.ml1_s.part
@@ -5,6 +5,6 @@
   macintosh_old	us			=	macintosh_vndr/us(oldmac)
   macintosh_old	$macvendorlayouts	=	macintosh_vndr/us(oldmac)+macintosh_vndr/%l[1]%(v[1])
   macintosh_old	*			=	macintosh_vndr/us(oldmac)+%l[1]%(v[1])
- $macs		$macvendorlayouts	=	pc+macintosh_vndr/%l[1]%(v[1])
+ $macs		$macvendorlayouts	=	pc+macintosh_vndr/%l[1]%(v[1])+altwin(swap_lalt_lwin)+level3(alt_switch)
  $thinkpads	br			=	pc+%l[1](thinkpad)
   *		*			=	pc+%l[1]%(v[1])