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-rw-r--r--sysdeps/mach/hurd/bits/posix_opt.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/mach/hurd/bits/posix_opt.h b/sysdeps/mach/hurd/bits/posix_opt.h
index 03082adaa6..828d7ffc77 100644
--- a/sysdeps/mach/hurd/bits/posix_opt.h
+++ b/sysdeps/mach/hurd/bits/posix_opt.h
@@ -53,7 +53,7 @@
/* Elements of the `c_cc' member of `struct termios' structure
can be disabled by using the value _POSIX_VDISABLE. */
-#define _POSIX_VDISABLE ((unsigned char) -1)
+#define _POSIX_VDISABLE '\0'
/* Different Hurd filesystems might do these differently.