gcc 4.7 changes binary behaviors ?

[Sérgio Basto]

Hi, hope that also could help 

Has package builder we also build kBuid 
http://koji.fedoraproject.org/koji/packageinfo?packageID=7356
, after use kBuid compile with gcc 4.7 I got this error on building
virtuaBox

/usr/bin/kmk_sed: file /builddir/build/BUILD/VirtualBox-4.1.8_OSE/src/VBox/Runtime/common/err/errmsg.sed line 31: Unmatched [ or [^
kmk: *** [/builddir/build/BUILD/VirtualBox-4.1.8_OSE/obj/obj/Runtime/errmsgdata.h] Error 1
kmk: *** Deleting file `/builddir/build/BUILD/VirtualBox-4.1.8_OSE/obj/obj/Runtime/errmsgdata.h'
kmk: *** Waiting for unfinished jobs....

build virtualbox with same kBuild but that was build with gcc 4.6 I
don't have this problem using kBuild-0.1.98-1.r1.fc17 works, using
kBuild-0.1.98-2.r1.fc17 I got this error, with kmk_sed. 
Any clue is appreciated 
Thanks, 



-- 
Sérgio M. B.