mosh build depends on pkg-config (#7365)
mosh build depends on pkg-config (#7365)


tmerrick1/spack,matthiasdiener/spack,krafczyk/spack,iulian787/spack,tmerrick1/spack,iulian787/spack,LLNL/spack,tmerrick1/spack,LLNL/spack,EmreAtes/spack,matthiasdiener/spack,matthiasdiener/spack,LLNL/spack,EmreAtes/spack,krafczyk/spack,tmerrick1/spack,krafczyk/spack,mfherbst/spack,tmerrick1/spack,iulian787/spack,krafczyk/spack,iulian787/spack,LLNL/spack,mfherbst/spack,mfherbst/spack,LLNL/spack,matthiasdiener/spack,EmreAtes/spack,iulian787/spack,krafczyk/spack,matthiasdiener/spack,EmreAtes/spack,mfherbst/spack,mfherbst/spack,EmreAtes/spack