diff --git a/cmd/zfs/zfs_util.h b/cmd/zfs/zfs_util.h
index 3ddff9e22..a56af59ad 100644
--- a/cmd/zfs/zfs_util.h
+++ b/cmd/zfs/zfs_util.h
@@ -33,7 +33,7 @@ extern "C" {
 
 void * safe_malloc(size_t size);
 void nomem(void);
-libzfs_handle_t *g_zfs;
+extern libzfs_handle_t *g_zfs;
 
 #ifdef	__cplusplus
 }
diff --git a/cmd/zpool/zpool_main.c b/cmd/zpool/zpool_main.c
index ae5e8a370..ff4f44d46 100644
--- a/cmd/zpool/zpool_main.c
+++ b/cmd/zpool/zpool_main.c
@@ -76,6 +76,8 @@
 
 #include "statcommon.h"
 
+libzfs_handle_t *g_zfs;
+
 static int zpool_do_create(int, char **);
 static int zpool_do_destroy(int, char **);
 
diff --git a/cmd/zpool/zpool_util.h b/cmd/zpool/zpool_util.h
index ce760df72..1f23f61aa 100644
--- a/cmd/zpool/zpool_util.h
+++ b/cmd/zpool/zpool_util.h
@@ -79,7 +79,7 @@ void pool_list_free(zpool_list_t *);
 int pool_list_count(zpool_list_t *);
 void pool_list_remove(zpool_list_t *, zpool_handle_t *);
 
-libzfs_handle_t *g_zfs;
+extern libzfs_handle_t *g_zfs;
 
 
 typedef	struct vdev_cmd_data
diff --git a/lib/libshare/smb.c b/lib/libshare/smb.c
index a95607ee0..f567f7c49 100644
--- a/lib/libshare/smb.c
+++ b/lib/libshare/smb.c
@@ -65,6 +65,8 @@ static boolean_t smb_available(void);
 
 static sa_fstype_t *smb_fstype;
 
+smb_share_t *smb_shares;
+
 /*
  * Retrieve the list of SMB shares.
  */
diff --git a/lib/libshare/smb.h b/lib/libshare/smb.h
index 7a0c0fd16..8ea44677f 100644
--- a/lib/libshare/smb.h
+++ b/lib/libshare/smb.h
@@ -44,6 +44,6 @@ typedef struct smb_share_s {
 	struct smb_share_s *next;
 } smb_share_t;
 
-smb_share_t *smb_shares;
+extern smb_share_t *smb_shares;
 
 void libshare_smb_init(void);