On Wed, Mar 15, 2017 at 03:01:49PM +0100, Thomas Monjalon wrote:

clang error below:

2017-03-07 11:32, Bruce Richardson:

quoted

+       union {
+               uint32_t sp_enqueue; /**< True, if single producer. */
+               uint32_t sc_dequeue; /**< True, if single consumer. */
+       };

error: anonymous unions are a C11 extension

What clang version and other CFLAGS settings are you using? Clang
compilation runs fine for me with clang 3.9.1 on Fedora 25.

/Bruce