[Qt-interest] Warning treated as errors. Cannot compile 4.8

[Guido Seifert]

Hi,
anyone an idea? Debian Wheezy 32bit.

jit/JITPropertyAccess32_64.cpp: In member function 'void
JSC::JIT::emit_op_method_check(JSC::Instruction*)':
[..]
jit/JITPropertyAccess32_64.cpp:438:17: error: variable 'displacementLabel1' set but not used
[-Werror=unused-but-set-variable]
jit/JITPropertyAccess32_64.cpp:440:17: error: variable 'displacementLabel2' set but not used
[..]
cc1plus: all warnings being treated as errors

Several variables set, but not used. Does not happen on all my
machines. 

Regards,
Guido