Dovecot 2.2.30* compiling error

[Mart Pirita]

Andrey Jr. Melnikov wrote:
> Mart Pirita <sysadmin at e-positive.ee> wrote:
>> Hello.
>> I cant build 2.2.30*, but I can build fine version 2.2.29* with same
>> options:
>> RedHat based customized distro, 2.6.28.10 kernel
> [...]
>
>> Build error:
>> ltest_lib-test-bits.o: In function `bits_required64':
>> /usr/src/redhat/BUILD/dovecot-2.2.30/src/lib/bits.h:33: undefined
>> reference to `__builtin_clzll'
>> /usr/src/redhat/BUILD/dovecot-2.2.30/src/lib/bits.h:33: undefined
>> reference to `__builtin_clzll'
>> test_lib-test-bits.o: In function `test_bits_requiredXX':
>> /usr/src/redhat/BUILD/dovecot-2.2.30/src/lib/test-bits.c:74: undefined
>> reference to `__builtin_clzll'
>> /usr/src/redhat/BUILD/dovecot-2.2.30/src/lib/test-bits.c:74: undefined
>> reference to `__builtin_clzll'
>> /usr/src/redhat/BUILD/dovecot-2.2.30/src/lib/test-bits.c:74: undefined
>> reference to `__builtin_clzll'
>> ./.libs/liblib.a(numpack.o): In function `numpack_decode':
>> /usr/src/redhat/BUILD/dovecot-2.2.30/src/lib/numpack.c:43: undefined
>> reference to `__builtin_clz'
>> collect2: ld returned 1 exit status
>> Please advise?
> Time to upgrade ancient GCC?


Well, I know it's old, but I didn't notice in changelog that something
special new was added, so maybe this is somekind of bug?