move _Atomic define to common.h

Author: zhiyong.dang

common.h

@@ -649,6 +649,12 @@ int omp_get_num_procs(void);
 __declspec(dllimport) int __cdecl omp_in_parallel(void);
 __declspec(dllimport) int __cdecl omp_get_num_procs(void);
 #endif
+#if (__STDC_VERSION__ >= 201112L)
+#ifndef _Atomic
+#define _Atomic volatile
+#endif
+#include <stdatomic.h>
+#endif
 #else
 #ifdef __ELF__
 int omp_in_parallel  (void) __attribute__ ((weak));

driver/others/blas_server_omp.c

@@ -36,12 +36,6 @@
 /* or implied, of The University of Texas at Austin.                 */
 /*********************************************************************/
 
-#if __STDC_VERSION__ >= 201112L
-#ifndef _Atomic
-#define _Atomic volatile
-#endif
-#include <stdatomic.h>
-#endif
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>