fts-lgpl --test failure

[Ralf Wildenhues]

The fts-lgpl module fails to build:

$ gnulib-tool --with-tests --test fts-lgpl
[...]
make[3]: Entering directory `/tmp/gnulib/build/fts-lgpl/gllib'
gcc -DHAVE_CONFIG_H -I. -I/tmp/gnulib/build/../testdir/fts-lgpl/gllib -I..     
-g -O2 -MT fts.o -MD -MP -MF .deps/fts.Tpo -c -o fts.o 
/tmp/gnulib/build/../testdir/fts-lgpl/gllib/fts.c
/tmp/gnulib/build/../testdir/fts-lgpl/gllib/fts.c:71:22: error: fcntl--.h: No 
such file or directory
/tmp/gnulib/build/../testdir/fts-lgpl/gllib/fts.c:72:23: error: dirent--.h: No 
such file or directory
make[3]: *** [fts.o] Error 1

I can make the test finish compilation by copying over
  fcntl--.h fcntl-safer.h dirent--.h dirent-safer.h

but those files come from GPL'ed modules, and it doesn't seem like the
right fix anyway.

I remember the fts-lgpl module already being broken last time I tested
gnulib.  Does anyone use this module at all, and how come they don't see
this issue?

Thanks,
Ralf