As a short-time workaround, try to patch:

Index: SConstruct
===================================================================
--- SConstruct  (revision 3521)
+++ SConstruct  (working copy)
@@ -47,7 +47,7 @@
 # on linux we need these compiler flags to avoid crashes in the v8 test suite
 # and avoid dtoa.c strict aliasing issues
 if os.environ.get('GCC_VERSION') == '44':
-    GCC_EXTRA_CCFLAGS = ['-fno-tree-vrp']
+    GCC_EXTRA_CCFLAGS = ['-fno-tree-vrp', '-fno-strict-aliasing']
     GCC_DTOA_EXTRA_CCFLAGS = ['-fno-strict-aliasing']
 else:
     GCC_EXTRA_CCFLAGS = []

At least for me that allows to pass all the unitests in both Release
and Debug mode.

hth and yours,
anton.

On Thu, Dec 24, 2009 at 10:34 PM, Anton Muhin <[email protected]> wrote:
> Oops, too fast.  Give me a second, please.
>
> yours,
> anton.
>
> On Thu, Dec 24, 2009 at 10:31 PM, Anton Muhin <[email protected]> wrote:
>> 'GCC_VERSION=44 scons' works perfectly fine for me.  Can you give it a
>> try on your box?
>>
>> yours,
>> anton.
>>
>> On Thu, Dec 24, 2009 at 8:30 PM, Vikram Dhillon <[email protected]> wrote:
>>> I had a look at that, no effect in Ubuntu karmic, as it was stated in
>>> the last comment
>>>
>>> Regards,
>>> Vikram Dhillon
>>>
>>> ~~~
>>> There are lots of Linux users who don't care how the kernel works, but
>>> only want to use it. That is a tribute to how good Linux is.
>>> -- Linus Torvalds
>>>
>>> -----BEGIN PGP SIGNATURE-----
>>> Version: GnuPG v1.4.9 (GNU/Linux)
>>>
>>> iEYEABECAAYFAksgX8AACgkQ0KuG2RxwAGQmGACePbWl1Hwk58/DBSIWtNXbfU0T
>>> ouQAnRDntZyaIfbJ7wpUHm/zsyTETPMd
>>> =Rr1r
>>> -----END PGP SIGNATURE-----
>>>
>>>
>>>
>>>
>>> On Thu, Dec 24, 2009 at 8:39 AM, Anton Muhin <[email protected]> wrote:
>>>> Please, have a look at http://code.google.com/p/v8/issues/detail?id=413
>>>>
>>>> yours,
>>>> anton.
>>>>
>>>> On Thu, Dec 24, 2009 at 2:55 AM, Vikram Dhillon <[email protected]> 
>>>> wrote:
>>>>> Okay it only works if I try this option:
>>>>>
>>>>> scons mode=debug library=shared snapshot=on
>>>>>
>>>>> Now why is that working?
>>>>>
>>>>> Regards,
>>>>> Vikram Dhillon
>>>>>
>>>>> ~~~
>>>>> There are lots of Linux users who don't care how the kernel works, but
>>>>> only want to use it. That is a tribute to how good Linux is.
>>>>> -- Linus Torvalds
>>>>>
>>>>> -----BEGIN PGP SIGNATURE-----
>>>>> Version: GnuPG v1.4.9 (GNU/Linux)
>>>>>
>>>>> iEYEABECAAYFAksgX8AACgkQ0KuG2RxwAGQmGACePbWl1Hwk58/DBSIWtNXbfU0T
>>>>> ouQAnRDntZyaIfbJ7wpUHm/zsyTETPMd
>>>>> =Rr1r
>>>>> -----END PGP SIGNATURE-----
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Wed, Dec 23, 2009 at 6:45 PM, Vikram Dhillon <[email protected]> 
>>>>> wrote:
>>>>>> Hi all,
>>>>>>         I have checked out the latest svn version and the attempted
>>>>>> to build v8 using the command scons. I am running Ubuntu 9.10 and I
>>>>>> have a Dell Inspiron 1525, I have the latest python version installed
>>>>>> that's available in the repositories. Here are the errors:
>>>>>>
>>>>>> vik...@ubuntu-devel:~/Development/svn/v8$ scons
>>>>>> scons: Reading SConscript files ...
>>>>>> scons: done reading SConscript files.
>>>>>> scons: Building targets ...
>>>>>>
>>>>>> gcc -o obj/release/dtoa-config.o -c -Werror -Wno-uninitialized -m32
>>>>>> -O3 -fomit-frame-pointer -fdata-sections -ffunction-sections -ansi
>>>>>> -DV8_TARGET_ARCH_IA32 -DENABLE_DEBUGGER_SUPPORT -DV8_NATIVE_REGEXP
>>>>>> -DENABLE_LOGGING_AND_PROFILING -Isrc src/dtoa-config.c
>>>>>>
>>>>>> g++ -o obj/release/accessors.o -c -Wall -Werror -W
>>>>>> -Wno-unused-parameter -Wnon-virtual-dtor -pedantic -m32 -O3
>>>>>> -fomit-frame-pointer -fdata-sections -ffunction-sections -ansi
>>>>>> -fno-rtti -fno-exceptions -fvisibility=hidden -Wall -Werror -W
>>>>>> -Wno-unused-parameter -Wnon-virtual-dtor -pedantic -m32 -O3
>>>>>> -fomit-frame-pointer -fdata-sections -ffunction-sections -ansi
>>>>>> -DV8_TARGET_ARCH_IA32 -DENABLE_DEBUGGER_SUPPORT -DV8_NATIVE_REGEXP
>>>>>> -DENABLE_LOGGING_AND_PROFILING -Isrc src/accessors.cc
>>>>>>
>>>>>> g++ -o obj/release/allocation.o -c -Wall -Werror -W
>>>>>> -Wno-unused-parameter -Wnon-virtual-dtor -pedantic -m32 -O3
>>>>>> -fomit-frame-pointer -fdata-sections -ffunction-sections -ansi
>>>>>> -fno-rtti -fno-exceptions -fvisibility=hidden -Wall -Werror -W
>>>>>> -Wno-unused-parameter -Wnon-virtual-dtor -pedantic -m32 -O3
>>>>>> -fomit-frame-pointer -fdata-sections -ffunction-sections -ansi
>>>>>> -DV8_TARGET_ARCH_IA32 -DENABLE_DEBUGGER_SUPPORT -DV8_NATIVE_REGEXP
>>>>>> -DENABLE_LOGGING_AND_PROFILING -Isrc src/allocation.cc
>>>>>>
>>>>>> g++ -o obj/release/api.o -c -Wall -Werror -W -Wno-unused-parameter
>>>>>> -Wnon-virtual-dtor -pedantic -m32 -O3 -fomit-frame-pointer
>>>>>> -fdata-sections -ffunction-sections -ansi -fno-rtti -fno-exceptions
>>>>>> -fvisibility=hidden -Wall -Werror -W -Wno-unused-parameter
>>>>>> -Wnon-virtual-dtor -pedantic -m32 -O3 -fomit-frame-pointer
>>>>>> -fdata-sections -ffunction-sections -ansi -DV8_TARGET_ARCH_IA32
>>>>>> -DENABLE_DEBUGGER_SUPPORT -DV8_NATIVE_REGEXP
>>>>>> -DENABLE_LOGGING_AND_PROFILING -Isrc src/api.cc
>>>>>>
>>>>>> cc1plus: warnings being treated as errors
>>>>>> src/handles-inl.h: In static member function 'static void
>>>>>> v8::V8::RemoveMessageListeners(void (*)(v8::Handle<v8::Message>,
>>>>>> v8::Handle<v8::Value>))':
>>>>>> src/handles-inl.h:50: error: dereferencing pointer '<anonymous>' does
>>>>>> break strict-aliasing rules
>>>>>> src/handles-inl.h:50: error: dereferencing pointer '<anonymous>' does
>>>>>> break strict-aliasing rules
>>>>>> src/globals.h:591: note: initialized from here
>>>>>> cc1plus: error: dereferencing pointer 'dest' does break strict-aliasing 
>>>>>> rules
>>>>>> cc1plus: error: dereferencing pointer 'dest' does break strict-aliasing 
>>>>>> rules
>>>>>> cc1plus: error: dereferencing pointer 'dest' does break strict-aliasing 
>>>>>> rules
>>>>>> src/api.cc:3287: note: initialized from here
>>>>>> scons: *** [obj/release/api.o] Error 1
>>>>>> scons: building terminated because of errors.
>>>>>>
>>>>>> Regards,
>>>>>> Vikram Dhillon
>>>>>>
>>>>>> ~~~
>>>>>> There are lots of Linux users who don't care how the kernel works, but
>>>>>> only want to use it. That is a tribute to how good Linux is.
>>>>>> -- Linus Torvalds
>>>>>>
>>>>>> -----BEGIN PGP SIGNATURE-----
>>>>>> Version: GnuPG v1.4.9 (GNU/Linux)
>>>>>>
>>>>>> iEYEABECAAYFAksgX8AACgkQ0KuG2RxwAGQmGACePbWl1Hwk58/DBSIWtNXbfU0T
>>>>>> ouQAnRDntZyaIfbJ7wpUHm/zsyTETPMd
>>>>>> =Rr1r
>>>>>> -----END PGP SIGNATURE-----
>>>>>>
>>>>>
>>>>> --
>>>>> v8-dev mailing list
>>>>> [email protected]
>>>>> http://groups.google.com/group/v8-dev
>>>>>
>>>>
>>>> --
>>>> v8-dev mailing list
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>>>> http://groups.google.com/group/v8-dev
>>>
>>> --
>>> v8-dev mailing list
>>> [email protected]
>>> http://groups.google.com/group/v8-dev
>>>
>>
>

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