build: allow control over the Windows arches to build
This allows the user to specify the architectures that they would want
to build for Windows. If it is not specified, then all known variants
(ARM and x86 32-bit and 64-bit) will be built.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f9e9891..06229f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -775,7 +775,10 @@
# Should we cross-compile the standard library for Windows?
is_sdk_requested(WINDOWS swift_build_windows)
if(swift_build_windows AND NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
- configure_sdk_windows(WINDOWS "Windows" "msvc" "aarch64;armv7;i686;x86_64")
+ if("${SWIFT_SDK_WINDOWS_ARCHITECTURES}" STREQUAL "")
+ set(SWIFT_SDK_WINDOWS_ARCHITECTURES aarch64;armv7;i686;x86_64)
+ endif()
+ configure_sdk_windows(WINDOWS "Windows" "msvc" "${SWIFT_SDK_WINDOWS_ARCHITECTURES}")
endif()
if("${SWIFT_SDKS}" STREQUAL "")
