changed the private *at functions to the official ones for openat and

mkdirat, but not for opendirat, as there is no official version of it.

src/obidmscolumndir.c

@@ -13,6 +13,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 #include <dirent.h>
 #include <fcntl.h>
 #include <unistd.h>
@@ -158,7 +159,7 @@ OBIDMS_column_directory_p obi_create_column_directory(OBIDMS_p dms, const char*
 	}
 
 	// Try to create the directory
-	if (private_mkdirat(dms_file_descriptor, column_directory_name, 0x777) < 0)
+	if (mkdirat(dms_file_descriptor, column_directory_name, 0x777) < 0)
 	{
 		if (errno == EEXIST)
 			obi_set_errno(OBICOLDIR_EXIST_ERROR);