Hi!
Currently, code using OpenSceneGraph doesn't build with clang due to the
way __sync_bool_compare_and_swap() is used in OpenThreads/Atomic header
file.
I tested it with clang 3.1 and it seems that clang is enforcing the use
of the same type for all parameters in this builtin. Looking at the
function declaration [1]
bool __sync_bool_compare_and_swap (type *ptr, type oldval type newval, ...)
it seems to be doing the right thing: here the same type is used for
*ptr, oldval and newval.
[1]
http://gcc.gnu.org/onlinedocs/gcc/_005f_005fsync-Builtins.html#g_t_005f_005fsync-Builtins
--
Piotr Domagalski
Poznan Supercomputing and Networking Center
diff --git a/include/OpenThreads/Atomic b/include/OpenThreads/Atomic
index 8b8ac4d..11e49c5 100644
--- a/include/OpenThreads/Atomic
+++ b/include/OpenThreads/Atomic
@@ -241,7 +241,7 @@ _OPENTHREADS_ATOMIC_INLINE bool
AtomicPtr::assign(void* ptrNew, const void* const ptrOld)
{
#if defined(_OPENTHREADS_ATOMIC_USE_GCC_BUILTINS)
- return __sync_bool_compare_and_swap(&_ptr, ptrOld, ptrNew);
+ return __sync_bool_compare_and_swap(&_ptr, (void*)ptrOld, ptrNew);
#elif defined(_OPENTHREADS_ATOMIC_USE_MIPOSPRO_BUILTINS)
return __compare_and_swap((unsigned long*)&_ptr, (unsigned long)ptrOld, (unsigned long)ptrNew);
#elif defined(_OPENTHREADS_ATOMIC_USE_SUN)
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