From: Vinson Lee <vlee@xxxxxxxxxxx>
MNT_DETACH and MNT_EXPIRE are not available with glibc before 2.10.
UMOUNT_NOFOLLOW is not available with glibc before 2.12.
This patches fixes these build errors with older glibc.
syscalls/umount.c:16: error: ‘MNT_DETACH’ undeclared here (not in a function)
syscalls/umount.c:16: error: ‘MNT_EXPIRE’ undeclared here (not in a function)
syscalls/umount.c:16: error: ‘UMOUNT_NOFOLLOW’ undeclared here (not in a function)
Signed-off-by: Vinson Lee <vlee@xxxxxxxxxxx>
---
include/compat.h | 13 +++++++++++++
syscalls/umount.c | 1 +
2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/include/compat.h b/include/compat.h
index ae57fcb..bb77e3b 100644
--- a/include/compat.h
+++ b/include/compat.h
@@ -761,4 +761,17 @@ struct kvm_get_htab_fd {
#define MRT_DEL_MFC_PROXY (MRT_BASE+11)
#endif
+/* sys/mount.h */
+#ifndef MNT_DETACH
+#define MNT_DETACH 2
+#endif
+
+#ifndef MNT_EXPIRE
+#define MNT_EXPIRE 4
+#endif
+
+#ifndef UMOUNT_NOFOLLOW
+#define UMOUNT_NOFOLLOW 8
+#endif
+
#endif /* _TRINITY_COMPAT_H */
diff --git a/syscalls/umount.c b/syscalls/umount.c
index 3523df2..fce22ff 100644
--- a/syscalls/umount.c
+++ b/syscalls/umount.c
@@ -3,6 +3,7 @@
*/
#include <sys/mount.h>
#include "sanitise.h"
+#include "compat.h"
struct syscall syscall_umount = {
.name = "umount",
--
1.7.4.1
--
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