expose linux extended file system attributes (closes #12720)
diff --git a/configure b/configure
index ed13d88..4200d88 100755
--- a/configure
+++ b/configure
@@ -6090,7 +6090,7 @@
 
 fi
 
-for ac_header in asm/types.h conio.h curses.h direct.h dlfcn.h errno.h \
+for ac_header in asm/types.h attr/xattr.h conio.h curses.h direct.h dlfcn.h errno.h \
 fcntl.h grp.h \
 ieeefp.h io.h langinfo.h libintl.h ncurses.h poll.h process.h pthread.h \
 sched.h shadow.h signal.h stdint.h stropts.h termios.h \