Pass sdk option to Swift compiler for WASI triples (#2735)

MaxDesiatov · web-flow · commit 8e4697ddc5fc · 2020-05-08T14:07:46.000-07:00
When building for WebAssembly/WASI `swiftc` needs the `-sdk` option passed to it with the sdk path.
diff --git a/Sources/Workspace/UserToolchain.swift b/Sources/Workspace/UserToolchain.swift
@@ -223,7 +223,7 @@ public final class UserToolchain: Toolchain {
     }
 
     public static func deriveSwiftCFlags(triple: Triple, destination: Destination) -> [String] {
-      return (triple.isDarwin() || triple.isAndroid()
+      return (triple.isDarwin() || triple.isAndroid() || triple.isWASI()
         ? ["-sdk", destination.sdk.pathString]
         : [])
         + destination.extraSwiftCFlags

Original file line number	Diff line number	Diff line change
`@@ -223,7 +223,7 @@ public final class UserToolchain: Toolchain {`
`223`	`223`	`}`
`224`	`224`
`225`	`225`	`public static func deriveSwiftCFlags(triple: Triple, destination: Destination) -> [String] {`
`226`		`- return (triple.isDarwin() \|\| triple.isAndroid()`
	`226`	`+ return (triple.isDarwin() \|\| triple.isAndroid() \|\| triple.isWASI()`
`227`	`227`	`? ["-sdk", destination.sdk.pathString]`
`228`	`228`	`: [])`
`229`	`229`	`+ destination.extraSwiftCFlags`