Does not play nicely on `shinyapps.io`

[mattfidler]

See https://community.rstudio.com/t/deployment-fails-with-missing-cmake/92668/3

[isuruf]

For Linux systems, they need to install the dependencies. See https://github.com/symengine/symengine.R#installation

[Marlin-Na]

I created a request to have cmake to be installed on shinyapp.io: https://github.com/rstudio/shinyapps-package-dependencies/issues/268

[mattfidler]

Thanks @Marlin-Na

[isuruf]

@Marlin-Na, isn't gmp, mpfr, mpc also required?

[Marlin-Na]

Looks like they already provide gmp and mpfr https://github.com/rstudio/shinyapps-package-dependencies/blob/master/packages/Rmpfr/install and https://github.com/rstudio/shinyapps-package-dependencies/blob/master/packages/gmp/install . mpc would be optional.