Installing the stable version 0.5 through the checksummed tar.gz does not fetch the git submodule in the package.
The submodule appears as an empty directory.
Thus, clone the commit tagged as v0.5 using git to get around this issue
* savanna: modified adios dependency spec
* Replaced adios+staging with adios+flexpath+dataspaces
* savanna: Enabling fortran support in adios by default
* savanna: reverting to variant 'staging' for enabling all staging transports
* savanna: Runtime framework for online workflow management from the ECP CODAR project
* savanna: added version 0.5
* savanna: Copying the package contents to prefix as part of installation
* savanna: Doing submodules=true for git checkout of develop version
* savanna: removed dependency on adios@develop. depends on adios
* Savanna: Converted package to MakefilePackage
