Support building for AppleSilicon

deps/build.jl

@@ -40,6 +40,7 @@ end
 
 windows_flag = Sys.iswindows()
 apple_flag = Sys.isapple()
+apple_silicon_flag = apple_flag && Sys.ARCH === :aarch64
 file_extension = nothing
 obj_files = []
 ignore_jll = read_env("ODEINTERFACE_IGNORE_JLL") != nothing
@@ -440,14 +441,14 @@ if build_script != nothing
   create_build_script()
 else
   # to build or not-to-build?
-  if VERSION >= v"1.3" && !ignore_jll
+  if VERSION >= v"1.3" && !ignore_jll && !apple_silicon_flag
     # Julia supports Artifacts and we don't build anything and we try
     # to use ODEInterface_jll
     exit()
   else
-    # either Julia version before v1.3 or we were asked to ignore
-    # ODEInterface_jll
-    # => in both cases we try to build:
+    # either Julia version is older than v1.3, we were asked to ignore
+    # ODEInterface_jll or we are on AppleSilicon
+    # => in all cases we try to build:
     adapt_to_os()
     build_with_gfortran()
   end

src/DLSolvers.jl

@@ -159,7 +159,8 @@ function loadODESolvers(extrapaths::Vector=AbstractString[],
   if isempty(extrapaths)
     extrapaths = [ @__DIR__ ]
   end
-  use_jll = VERSION >= v"1.3" && !ignore_jll
+  apple_silicon = Sys.isapple() && Sys.ARCH === :aarch64
+  use_jll = VERSION >= v"1.3" && !ignore_jll && !apple_silicon
   if use_jll
     @eval ODEInterface begin
       using ODEInterface_jll

src/ODEInterface.jl

@@ -597,6 +597,7 @@ function __init__()
   # at this stage dlSolversInfo should be empty, but
   # just to be sure
   empty!(dlSolversInfo)
+  loadODESolvers()
 end