From e228cd8b5fb50ad3fb8334445fdede34abcb72f6 Mon Sep 17 00:00:00 2001
From: Yuta Saito <kateinoigakukun@gmail.com>
Date: Sat, 10 Jun 2023 09:55:03 +0000
Subject: [PATCH] [wasm][build] Recognize wasi-wasm32 as valid host

wasi-wasm32 support in build system was added in
b1236e92f9c8f07620f4993486fbb872c9575954 but we forgot to add it to the
host for the case when we are building the standalone stdlib for the
target.
---
 CMakeLists.txt          | 8 ++++++++
 utils/build-script-impl | 1 +
 2 files changed, 9 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 563d40ee88540..54597829e7218 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1043,6 +1043,14 @@ elseif("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "ANDROID")
   set(SWIFT_PRIMARY_VARIANT_SDK_default  "${SWIFT_HOST_VARIANT_SDK}")
   set(SWIFT_PRIMARY_VARIANT_ARCH_default "${SWIFT_HOST_VARIANT_ARCH}")
 
+elseif("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "WASI")
+  set(SWIFT_HOST_VARIANT "wasi" CACHE STRING
+      "Deployment OS for Swift host tools (the compiler) [wasi]")
+
+  configure_sdk_unix("WASI" "wasm32")
+  set(SWIFT_PRIMARY_VARIANT_SDK_default  "${SWIFT_HOST_VARIANT_SDK}")
+  set(SWIFT_PRIMARY_VARIANT_ARCH_default "${SWIFT_HOST_VARIANT_ARCH}")
+
 elseif("${SWIFT_HOST_VARIANT_SDK}" MATCHES "(OSX|IOS*|TVOS*|WATCHOS*)")
 
   set(SWIFT_HOST_VARIANT "macosx" CACHE STRING
diff --git a/utils/build-script-impl b/utils/build-script-impl
index f3941c1427948..457a7077905ae 100755
--- a/utils/build-script-impl
+++ b/utils/build-script-impl
@@ -481,6 +481,7 @@ function verify_host_is_supported() {
       | watchsimulator-arm64    \
       | watchos-armv7k          \
       | watchos-arm64_32        \
+      | wasi-wasm32             \
       | android-armv7           \
       | android-aarch64         \
       | android-x86_64)