Fixed some compiler errors/warnings for clang.

common.h

@@ -310,7 +310,7 @@ typedef int blasint;
 #endif
 
 #if defined(OS_WINDOWS)
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(__clang__)
 #define YIELDING    YieldProcessor()
 #else
 #define YIELDING	SwitchToThread()

cpuid_x86.c

@@ -40,7 +40,7 @@
 #include <string.h>
 #include "cpuid.h"
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(__clang__)
 #define C_INLINE __inline
 #else
 #define C_INLINE inline
@@ -154,7 +154,7 @@ static C_INLINE int have_excpuid(void){
 #ifndef NO_AVX
 static C_INLINE void xgetbv(int op, int * eax, int * edx){
   //Use binary code for xgetbv
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(__clang__)
   *eax = __xgetbv(op);
 #else
   __asm__ __volatile__

driver/others/memory.c

@@ -769,12 +769,12 @@ static void *alloc_hugetlb(void *address){
   
   if (LookupPrivilegeValue(NULL, SE_LOCK_MEMORY_NAME, &tp.Privileges[0].Luid) != TRUE) {
       CloseHandle(hToken);
-      return -1;
+      return (void*)-1;
   }
 
   if (AdjustTokenPrivileges(hToken, FALSE, &tp, 0, NULL, NULL) != TRUE) {
       CloseHandle(hToken);
-      return -1;
+      return (void*)-1;
   }
 
   map_address  = (void *)VirtualAlloc(address,

kernel/arm/zdot.c

@@ -35,9 +35,13 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 **************************************************************************************/
 
 #include "common.h"
-#include <complex.h>
 
+#ifndef _MSC_VER
+#include <complex.h>
 FLOAT _Complex CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
+#else
+openblas_complex_double CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
+#endif
 {
 	BLASLONG i=0;
 	BLASLONG ix=0,iy=0;