Index: e2fsprogs-1.40.2/debugfs/debugfs.c
===================================================================
--- e2fsprogs-1.40.2.orig/debugfs/debugfs.c
+++ e2fsprogs-1.40.2/debugfs/debugfs.c
@@ -62,7 +62,7 @@ static void open_filesystem(char *device
 			current_fs = NULL;
 			return;
 		}
-		retval = unix_io_manager->open(data_filename, 0, &data_io);
+		retval = (unix_io_manager->open)(data_filename, 0, &data_io);
 		if (retval) {
 			com_err(data_filename, 0, "while opening data source");
 			current_fs = NULL;
Index: e2fsprogs-1.40.2/e2fsck/journal.c
===================================================================
--- e2fsprogs-1.40.2.orig/e2fsck/journal.c
+++ e2fsprogs-1.40.2/e2fsck/journal.c
@@ -362,7 +362,7 @@ static errcode_t e2fsck_get_journal(e2fs
 #ifndef USE_INODE_IO
 	if (ext_journal)
 #endif
-		retval = io_ptr->open(journal_name, IO_FLAG_RW,
+		retval = (io_ptr->open)(journal_name, IO_FLAG_RW,
 				      &ctx->journal_io);
 	if (retval)
 		goto errout;
Index: e2fsprogs-1.40.2/e2fsck/util.c
===================================================================
--- e2fsprogs-1.40.2.orig/e2fsck/util.c
+++ e2fsprogs-1.40.2/e2fsck/util.c
@@ -435,7 +435,7 @@ blk_t get_backup_sb(e2fsck_t ctx, ext2_f
 	if (!name || !manager)
 		goto cleanup;
 
-	if (manager->open(name, 0, &io) != 0)
+	if ((manager->open)(name, 0, &io) != 0)
 		goto cleanup;
 
 	if (ext2fs_get_mem(SUPERBLOCK_SIZE, &buf))
Index: e2fsprogs-1.40.2/lib/ext2fs/initialize.c
===================================================================
--- e2fsprogs-1.40.2.orig/lib/ext2fs/initialize.c
+++ e2fsprogs-1.40.2/lib/ext2fs/initialize.c
@@ -124,7 +124,7 @@ errcode_t ext2fs_initialize(const char *
 	io_flags = IO_FLAG_RW;
 	if (flags & EXT2_FLAG_EXCLUSIVE)
 		io_flags |= IO_FLAG_EXCLUSIVE;
-	retval = manager->open(name, io_flags, &fs->io);
+	retval = (manager->open)(name, io_flags, &fs->io);
 	if (retval)
 		goto cleanup;
 	fs->image_io = fs->io;
Index: e2fsprogs-1.40.2/lib/ext2fs/openfs.c
===================================================================
--- e2fsprogs-1.40.2.orig/lib/ext2fs/openfs.c
+++ e2fsprogs-1.40.2/lib/ext2fs/openfs.c
@@ -119,7 +119,7 @@ errcode_t ext2fs_open2(const char *name,
 		io_flags |= IO_FLAG_RW;
 	if (flags & EXT2_FLAG_EXCLUSIVE)
 		io_flags |= IO_FLAG_EXCLUSIVE;
-	retval = manager->open(fs->device_name, io_flags, &fs->io);
+	retval = (manager->open)(fs->device_name, io_flags, &fs->io);
 	if (retval)
 		goto cleanup;
 	if (io_options && 
Index: e2fsprogs-1.40.2/lib/ext2fs/test_io.c
===================================================================
--- e2fsprogs-1.40.2.orig/lib/ext2fs/test_io.c
+++ e2fsprogs-1.40.2/lib/ext2fs/test_io.c
@@ -195,7 +195,7 @@ static errcode_t test_open(const char *n
 	memset(data, 0, sizeof(struct test_private_data));
 	data->magic = EXT2_ET_MAGIC_TEST_IO_CHANNEL;
 	if (test_io_backing_manager) {
-		retval = test_io_backing_manager->open(name, flags,
+		retval = (test_io_backing_manager->open)(name, flags,
 						       &data->real);
 		if (retval)
 			goto cleanup;
Index: e2fsprogs-1.40.2/misc/e2image.c
===================================================================
--- e2fsprogs-1.40.2.orig/misc/e2image.c
+++ e2fsprogs-1.40.2/misc/e2image.c
@@ -584,7 +584,7 @@ static void install_image(char *device, 
 		exit(1);
 	}
 
-	retval = io_ptr->open(device, IO_FLAG_RW, &io); 
+	retval = (io_ptr->open)(device, IO_FLAG_RW, &io); 
 	if (retval) {
 		com_err(device, 0, "while opening device file");
 		exit(1);