fix function typecasts

kernel/x86_64/dasum.c

@@ -114,7 +114,7 @@ FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
 #else
         mode = BLAS_DOUBLE | BLAS_REAL;
 #endif
-        blas_level1_thread_with_return_value(mode, n, 0, 0, &dummy_alpha, x, inc_x, NULL, 0, result, 0, (void *)asum_thread_function, nthreads);
+        blas_level1_thread_with_return_value(mode, n, 0, 0, &dummy_alpha, x, inc_x, NULL, 0, result, 0, (int (*)(void))asum_thread_function, nthreads);
         ptr = (FLOAT *)result;
         for (i = 0; i < nthreads; i++) {
             sumf += (*ptr);

kernel/x86_64/ddot.c

@@ -190,7 +190,7 @@ FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
 #endif
 		blas_level1_thread_with_return_value(mode, n, 0, 0, &dummy_alpha,
 				   x, inc_x, y, inc_y, result, 0,
-				   ( void *)dot_thread_function, nthreads);
+				    (int (*)(void)) dot_thread_function, nthreads);
 
 		ptr = (RETURN_TYPE *)result;
 		for (i = 0; i < nthreads; i++) {

kernel/x86_64/drot.c

@@ -196,7 +196,7 @@ int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT
 #else
 	    int mode = BLAS_SINGLE | BLAS_REAL | BLAS_PTHREAD;
 #endif
-	    blas_level1_thread(mode, n, 0, 0, alpha, x, inc_x, y, inc_y, &dummy_c, 0, (void *)rot_thread_function, nthreads);
+	    blas_level1_thread(mode, n, 0, 0, alpha, x, inc_x, y, inc_y, &dummy_c, 0, (int (*)(void))rot_thread_function, nthreads);
     }
 #else	
     rot_compute(n, x, inc_x, y, inc_y, c, s);

kernel/x86_64/sasum.c

@@ -123,7 +123,7 @@ FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
 #else
         mode = BLAS_DOUBLE | BLAS_REAL;
 #endif
-        blas_level1_thread_with_return_value(mode, n, 0, 0, &dummy_alpha, x, inc_x, NULL, 0, result, 0, (void *)asum_thread_function, nthreads);
+        blas_level1_thread_with_return_value(mode, n, 0, 0, &dummy_alpha, x, inc_x, NULL, 0, result, 0, (int (*)(void))asum_thread_function, nthreads);
         ptr = (FLOAT *)result;
         for (i = 0; i < nthreads; i++) {
             sumf += (*ptr);

kernel/x86_64/srot.c

@@ -198,7 +198,7 @@ int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT
 #else
 	    int mode = BLAS_SINGLE | BLAS_REAL | BLAS_PTHREAD;
 #endif
-	    blas_level1_thread(mode, n, 0, 0, alpha, x, inc_x, y, inc_y, &dummy_c, 0, (void *)rot_thread_function, nthreads);
+	    blas_level1_thread(mode, n, 0, 0, alpha, x, inc_x, y, inc_y, &dummy_c, 0, (int (*)(void))rot_thread_function, nthreads);
     }
 #else	
     rot_compute(n, x, inc_x, y, inc_y, c, s);

kernel/x86_64/zdot.c

@@ -215,7 +215,7 @@ OPENBLAS_COMPLEX_FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLA
 
 		blas_level1_thread_with_return_value(mode, n, 0, 0, &dummy_alpha,
 				   x, inc_x, y, inc_y, result, 0,
-				   ( void *)zdot_thread_function, nthreads);
+				   (int (*)(void))zdot_thread_function, nthreads);
 
 		ptr = (OPENBLAS_COMPLEX_FLOAT *)result;
 		for (i = 0; i < nthreads; i++) {