[Mesa-dev] [PATCH 1/3] meson: Fix -latomic check

[Matt Turner]

On Wed, Jun 13, 2018 at 8:37 AM, Dylan Baker <dylan at pnwbakers.com> wrote:
> Quoting Matt Turner (2018-06-12 17:50:20)
>> Commit 54ba73ef102f (configure.ac/meson.build: Fix -latomic test) fixed
>> some checks for -latomic, and then commit 54bbe600ec26 (configure.ac:
>> rework -latomic check) further extended the fixes in configure.ac but
>> not in Meson. This commit extends those fixes to the Meson tests.
>>
>> Fixes: 54bbe600ec26 (configure.ac: rework -latomic check)
>> ---
>>  meson.build | 8 +++++++-
>>  1 file changed, 7 insertions(+), 1 deletion(-)
>>
>> diff --git a/meson.build b/meson.build
>> index 7dba52369b0..62200476216 100644
>> --- a/meson.build
>> +++ b/meson.build
>> @@ -836,7 +836,13 @@ endif
>>  # Check for GCC style atomics
>>  dep_atomic = null_dep
>>
>> -if cc.compiles('int main() { int n; return __atomic_load_n(&n, __ATOMIC_ACQUIRE); }',
>> +if cc.compiles('''#include <stdint.h>
>> +                  int main() {
>> +                    struct {
>> +                      uint64_t *v;
>> +                    } x;
>> +                    return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE);
>> +                  }''',
>>                 name : 'GCC atomic builtins')
>>    pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
>>
>> --
>> 2.16.1
>>
>
> Should patches 2 and 3 be cc 18.1?

Yes, I will send you a list of 5 patches that I'd like to include in
18.1 including these.

(I *really* hate that we're using 64-bit atomics)