external feature seems to be broken for hdf5

I just wanted to test the external feature for HDF5 and got the following output:

[micha@iff691 testInstall]$ ./configure.sh -external hdf5 INTEL_MPI
/Users/micha/temp/testInstall
------------ Welcome to the FLEUR configuration script -------------
Git version found, hook installed
Machine config:INTEL_MPI
Using config for: INTEL_MPI
Installing hdf5
cp: cannot stat ‘/Users/micha/temp/testInstall/external/hdf5’: No such file or directory
/Users/micha/temp/testInstall/external/install_external.sh: line 17: cd: external/hdf5: No such file or directory
/Users/micha/temp/testInstall/external/install_external.sh: line 19: install_hdf5.sh: No such file or directory
hdf5 done

There only is an hdf5-git subdirectory in /Users/micha/temp/testInstall/external/. Is this just an issue of name changes that were not adapted in the whole configure procedure?