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-rw-r--r--newlib/libc/include/sys/unistd.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/newlib/libc/include/sys/unistd.h b/newlib/libc/include/sys/unistd.h
index efd8ebb7b..0d4af5c1e 100644
--- a/newlib/libc/include/sys/unistd.h
+++ b/newlib/libc/include/sys/unistd.h
@@ -21,7 +21,7 @@ unsigned _EXFUN(alarm, (unsigned __secs ));
int _EXFUN(chdir, (const char *__path ));
int _EXFUN(chmod, (const char *__path, mode_t __mode ));
int _EXFUN(chown, (const char *__path, uid_t __owner, gid_t __group ));
-#ifdef __CYGWIN__
+#if defined(__CYGWIN__) || defined(__rtems__)
int _EXFUN(chroot, (const char *__path ));
#endif
int _EXFUN(close, (int __fildes ));