Sorry, Jeffrey, I'm not following. Could you explain a bit better how this would work? Are you intending that "using Package" goes within the if statement?
On Tuesday, December 8, 2015 at 8:02:17 AM UTC-8, Jeffrey Sarnoff wrote: > > if isdir(joinpath(Pkg.dir(),"Package")) > ... > else > ... > end > > > On Monday, December 7, 2015 at 10:50:56 AM UTC-5, Seth wrote: >> >> Is there a way to specify a conditional dependency (that is, use package >> Foo if it's available and define functions that use things from Foo; >> otherwise, don't define the functions or throw an error message) on >> packages that contain macros? isdefined(Main, :Package) won't work since >> the macros from Package are evaluated prior to this conditional, and it >> will throw an error. >> >> I was using Requires.jl to do this, but one issue I ran into is that an >> error in the code within the @require block is not propagated as an error; >> it's presented as a warning, which means that things like unit tests will >> pass even if the code is incorrect. >> >
