Merge pull request #122 from FluxML/ap/builderror

Avoid error while trying to build NNPACK on unsupported platforms

Author: MikeInnes

deps/build.jl

@@ -27,7 +27,8 @@ if dl_info === nothing && unsatisfied
     # If we don't have a compatible .tar.gz to download, complain.
     # Alternatively, you could attempt to install from a separate provider,
     # build from source or something even more ambitious here.
-    error("Your platform (\"$(Sys.MACHINE)\", parsed as \"$(triplet(platform_key_abi()))\") is not supported by this package!")
+    @warn "Your platform (\"$(Sys.MACHINE)\", parsed as \"$(triplet(platform_key_abi()))\") is not supported by NNPACK!
+          You will only be able to use only the default NNlib backend."
 end
 
 # If we have a download, and we are unsatisfied (or the version we're
@@ -38,4 +39,4 @@ if unsatisfied || !isinstalled(dl_info...; prefix=prefix)
 end
 
 # Write out a deps.jl file that will contain mappings for our products
-write_deps_file(joinpath(@__DIR__, "deps.jl"), products, verbose=verbose)
+write_deps_file(joinpath(@__DIR__, "deps.jl"), products, verbose=verbose)