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-rw-r--r--libc/sysdeps/linux/x86_64/sys/io.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/x86_64/sys/io.h b/libc/sysdeps/linux/x86_64/sys/io.h
index 802a0dfb4..ec1212560 100644
--- a/libc/sysdeps/linux/x86_64/sys/io.h
+++ b/libc/sysdeps/linux/x86_64/sys/io.h
@@ -32,6 +32,7 @@ __BEGIN_DECLS
E.g., Linux/Alpha for Alpha PCs supports this. */
extern int ioperm (unsigned long int __from, unsigned long int __num,
int __turn_on) __THROW;
+libc_hidden_proto(ioperm)
/* Set the I/O privilege level to LEVEL. If LEVEL>3, permission to
access any I/O port is granted. This call requires root