[Test] contrib/test_installed modified to set specific gcov

[Anna Tikhonova]

Ok for trunk, 4.7, 4.6?

2012/8/17 Anna Tikhonova <anna.m.tikhonova@gmail.com>:
> Ping one more time.
>
> 2012/8/10 Anna Tikhonova <anna.m.tikhonova@gmail.com>:
>> Ping.
>>
>> 2012/8/8 Anna Tikhonova <anna.m.tikhonova@gmail.com>:
>>> Hi,
>>>
>>> while running check for Android NDK compiler (I've used
>>> contrib/test_installed for it) I've noticed that gcov name is
>>> hardcoded in g++.dg/gcov/gcov.exp.
>>> All NDK x86 tools have prefix like i686-linux-android-, so testing
>>> will fail to spawn gcov.
>>>
>>> The patch attached introduces --with-gcov flag of
>>> contrib/test_installed so one could set specific gcov for testing.
>>> As workaround we could create a wrapper script named 'gcov' pointing
>>> to specific gcov in directory where GCC_UNDER_TEST resides.
>>>
>>> What do you think of this patch? Do you find it usefull? Thanks in advance.
>>>
>>> Anna