-#define __syscall1(n,a) __syscall1(n,(long)(a))
-#define __syscall2(n,a,b) __syscall2(n,(long)(a),(long)(b))
-#define __syscall3(n,a,b,c) __syscall3(n,(long)(a),(long)(b),(long)(c))
-#define __syscall4(n,a,b,c,d) __syscall4(n,(long)(a),(long)(b),(long)(c),(long)(d))
-#define __syscall5(n,a,b,c,d,e) __syscall5(n,(long)(a),(long)(b),(long)(c),(long)(d),(long)(e))
-#define __syscall6(n,a,b,c,d,e,f) __syscall6(n,(long)(a),(long)(b),(long)(c),(long)(d),(long)(e),(long)(f))
-#define __syscall7(n,a,b,c,d,e,f,g) (__syscall)(n,(long)(a),(long)(b),(long)(c),(long)(d),(long)(e),(long)(f),(long)g)
+#ifndef __scc
+#define __scc(X) (long) (X)
+#endif
+
+#define __syscall1(n,a) __syscall1(n,__scc(a))
+#define __syscall2(n,a,b) __syscall2(n,__scc(a),__scc(b))
+#define __syscall3(n,a,b,c) __syscall3(n,__scc(a),__scc(b),__scc(c))
+#define __syscall4(n,a,b,c,d) __syscall4(n,__scc(a),__scc(b),__scc(c),__scc(d))
+#define __syscall5(n,a,b,c,d,e) __syscall5(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e))
+#define __syscall6(n,a,b,c,d,e,f) __syscall6(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f))
+#define __syscall7(n,a,b,c,d,e,f,g) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f),__scc(g))