[CMake] Fix package CMO capability chekcing logic

rintaro · bnbarham · commit 944ab09bd447 · 2025-03-10T18:13:36.000-07:00
Package CMO requires '-enable-library-evolution' in 6.1+ compilers. Otherwise: <unknown>:0: error: Library evolution must be enabled for Package CMO rdar://146673779 (cherry picked from commit 860ea2c)
diff --git a/cmake/modules/SwiftCompilerCapability.cmake b/cmake/modules/SwiftCompilerCapability.cmake
@@ -39,6 +39,7 @@ function(swift_get_package_cmo_support out_var)
   # > 6.0 : Fixed feature.
   swift_supports_compiler_arguments(result
     -package-name my-package
+    -enable-library-evolution
     -Xfrontend -package-cmo
     -Xfrontend -allow-non-resilient-access
   )

Original file line number	Diff line number	Diff line change
`@@ -39,6 +39,7 @@ function(swift_get_package_cmo_support out_var)`
`39`	`39`	`# > 6.0 : Fixed feature.`
`40`	`40`	`swift_supports_compiler_arguments(result`
`41`	`41`	`-package-name my-package`
	`42`	`+ -enable-library-evolution`
`42`	`43`	`-Xfrontend -package-cmo`
`43`	`44`	`-Xfrontend -allow-non-resilient-access`
`44`	`45`	`)`