Swift: Honor CMAKE_OSX_SYSROOT on Apple platforms

Pass the value to the Swift compiler driver via `-sdk`.  We already do
this for C/C++ via `-isysroot`.

This fixes command-line builds on macOS 10.15 with Xcode 11 Swift tools.

Fixes: #19880
This commit is contained in:
Brad King
2019-10-28 11:52:31 -04:00
parent 92780281c2
commit c10c9f839a
+1
View File
@@ -0,0 +1 @@
set(CMAKE_Swift_SYSROOT_FLAG "-sdk")