MS_DIRSYNC and MS_REC compat

[zfs] / lib / libspl / include / sys / mount.h

diff --git a/lib/libspl/include/sys/mount.h b/lib/libspl/include/sys/mount.h
index f6a67c6a0caf2c106d8118e0cdb7b1bbf09ea983..9eb893fe64bf6266ba8d44819106062023aa7bc0 100644 (file)
--- a/lib/libspl/include/sys/mount.h
+++ b/lib/libspl/include/sys/mount.h
@@ -42,6 +42,15 @@
 #define BLKGETSIZE64           _IOR(0x12, 114, size_t)
 #endif
 
+/*
+ * Some old glibc headers don't correctly define MS_DIRSYNC and
+ * instead use the enum name S_WRITE.  When using these older
+ * headers define MS_DIRSYNC to be S_WRITE.
+ */
+#if !defined(MS_DIRSYNC)
+#define MS_DIRSYNC             S_WRITE
+#endif
+
 #define        MS_USERS        0x40000000
 #define        MS_OWNER        0x10000000
 #define        MS_GROUP        0x08000000