hurd: Fix tst-writev test

There is no compile-time IOV_MAX constraint on GNU/Hurd

diff --git a/sysdeps/wordsize-64/tst-writev.c b/sysdeps/wordsize-64/tst-writev.c
index 3736f2bfb0315888d25fad6782fa96981cc6609c..ffdd5e69c35e8294c25d569f82dbb89f0b06e0e9 100644 (file)
--- a/sysdeps/wordsize-64/tst-writev.c
+++ b/sysdeps/wordsize-64/tst-writev.c
@@ -24,6 +24,11 @@
 #include <unistd.h>
 #include <sys/uio.h>
 
+/* GNU/Hurd does not define a IOV_MAX constraint.  */
+#ifndef IOV_MAX
+# define IOV_MAX 1024
+#endif
+
 
 /* The purpose of this test is to verify that the INTERNAL_[V]SYSCALL_NCS
    macros on 64-bit platforms don't cast the return type to (int) which would