Make sure that the asm files don't incorrectly trigger an executable
stack marking in the final shared library.  That's bad, mmmkay.

--- src/ia64_syscall.S
+++ src/ia64_syscall.S
@@ -15,3 +15,7 @@
 	br.ret.sptk.many rp
 	.endp __ia64_syscall
 #endif
+
+#ifdef __ELF__
+.section .note.GNU-stack,"",@progbits
+#endif