| 1 | --- a/util-linux/mount.c |
| 2 | +++ b/util-linux/mount.c |
| 3 | @@ -136,6 +136,10 @@ |
| 4 | # include <rpc/pmap_clnt.h> |
| 5 | #endif |
| 6 | |
| 7 | +#ifndef MS_UNION |
| 8 | +#define MS_UNION 0x100 /* 256: Mount on top of a union */ |
| 9 | +#endif |
| 10 | + |
| 11 | |
| 12 | #if defined(__dietlibc__) |
| 13 | // 16.12.2006, Sampo Kellomaki (sampo@iki.fi) |
| 14 | @@ -254,6 +258,7 @@ static const int32_t mount_options[] = { |
| 15 | /* "rslave" */ MS_SLAVE|MS_RECURSIVE, |
| 16 | /* "rprivate" */ MS_PRIVATE|MS_RECURSIVE, |
| 17 | /* "runbindable" */ MS_UNBINDABLE|MS_RECURSIVE, |
| 18 | + /* "union" */ MS_UNION, |
| 19 | ) |
| 20 | |
| 21 | // Always understood. |
| 22 | @@ -310,6 +315,7 @@ static const char mount_option_str[] = |
| 23 | "make-rslave\0" |
| 24 | "make-rprivate\0" |
| 25 | "make-runbindable\0" |
| 26 | + "make-union\0" |
| 27 | ) |
| 28 | |
| 29 | // Always understood. |
| 30 | |
