[OE-core] [meta-clang][PATCH] conf/nonclangable.conf: Always build mesa with gcc

[Böszörményi Zoltán]

2020. 02. 27. 8:44 keltezéssel, Khem Raj írta:
> Can you send it via github pull request please

Sure.

> 
> On Wed, Feb 26, 2020 at 10:21 PM Böszörményi Zoltán via
> Openembedded-core <openembedded-core at lists.openembedded.org> wrote:
>>
>> Ignore this, the patch is against the zeus branch.
>> Re-sent with the proper subject.
>>
>> 2020. 02. 27. 7:16 keltezéssel, Böszörményi Zoltán írta:
>>> Building mesa (at least version 19.3.4) with clang 9.0.1 leads
>>> to linker errors on x86/x86-64:
>>>
>>> "undefined reference to `typeinfo for llvm::raw_pwrite_stream'"
>>> in libvulkan_radeon.so
>>>
>>> and
>>>
>>> "undefined reference to `typeinfo for llvm::RTDyldMemoryManager'"
>>> in libgallium.a.
>>>
>>> It was reported at https://gitlab.freedesktop.org/mesa/mesa/issues/2533
>>>
>>> It seems it is related to rtti not being enabled, at least reports
>>> from a few years ago on forums lead to that conclusion.
>>> But enabling rtti for clang in PACKAGECONFIG doesn't help.
>>>
>>> Just build mesa with gcc, it fixes the linker errors.
>>>
>>> Signed-off-by: Böszörményi Zoltán <zboszor at pr.hu>
>>> ---
>>>    conf/nonclangable.conf | 7 +++----
>>>    1 file changed, 3 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/conf/nonclangable.conf b/conf/nonclangable.conf
>>> index 70336bb..91b9965 100644
>>> --- a/conf/nonclangable.conf
>>> +++ b/conf/nonclangable.conf
>>> @@ -45,10 +45,9 @@ TOOLCHAIN_pn-libssp-nonshared = "gcc"
>>>    TOOLCHAIN_pn-libstd-rs = "gcc"
>>>    TOOLCHAIN_pn-m4_powerpc = "gcc"
>>>    # clang does not have 64bit atomics on mips32
>>> -TOOLCHAIN_pn-mesa_mips = "gcc"
>>> -TOOLCHAIN_pn-mesa_mipsel = "gcc"
>>> -TOOLCHAIN_pn-mesa_riscv64 = "gcc"
>>> -TOOLCHAIN_pn-mesa_powerpc = "gcc"
>>> +# building Mesa 19.3.x with clang causes linker errors on x86/x86-64
>>> +# See https://gitlab.freedesktop.org/mesa/mesa/issues/2533
>>> +TOOLCHAIN_pn-mesa = "gcc"
>>>    # multiple definition of 'mongo::error_details::isNamedCode<0>'
>>>    TOOLCHAIN_pn-mongodb = "gcc"
>>>    # variant-impl.hpp:309:36: error: 'is_variant' does not name a template but is followed by template arguments
>>>
>>
>> --
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