Description of problem:
current fc16 octave fails to build octave-optim with the following message:

copyfile /builddir/build/BUILD/optim-1.0.16/src/__bfgsmin.oct /builddir/build/BUILD/optim-1.0.16/src/numgradient.oct /builddir/build/BUILD/optim-1.0.16/src/numhessian.oct /builddir/build/BUILD/optim-1.0.16/src/samin.oct /builddir/build/BUILD/optim-1.0.16/inst/x86_64-redhat-linux-gnu-api-v45+
warning: gen_doc_cache: unusable help text found in file 'test_d2_min_1'
warning: gen_doc_cache: unusable help text found in file 'test_d2_min_2'
warning: gen_doc_cache: unusable help text found in file 'test_d2_min_3'
warning: optimset: no defaults for function `__nonlin_residmin__'
error: tar: all arguments must be character strings
error: called from:
error:   /usr/share/octave/3.4.2/m/miscellaneous/tar.m at line 46, column 5
error:   /usr/share/octave/3.4.2/m/pkg/pkg.m at line 1236, column 7
error:   /usr/share/octave/3.4.2/m/pkg/pkg.m at line 602, column 5
error:   /usr/share/octave/3.4.2/m/pkg/pkg.m at line 471, column 7


Version-Release number of selected component (if applicable):
octave.x86_64 6:3.4.2-1.fc16

working:
octave.x86_64 6:3.4.2-2.fc17
octave.x86_64 6:3.4.0-8.fc16


How reproducible:
always

Steps to Reproduce:
1.fedpkg clone -B octave-optim
2.cd octave-optim/f16
3.fedpkg build
  
Actual results:
see above

Expected results:
built binary rpms