[CMake] Update host platform check for macro support

"Support Macros in Linux" patches was inconsistent with checking
platforms. Some only checked 'LINUX' but some matches
'LINUX|ANDROID|OPENBSD|FREEBSD'. Although I don't have tested other
platoforms than Linux at all, there's no reason to limit it to Linux.
So use the consistent check to match 'LINUX|ANDROID|OPENBSD|FREEBSD'

Author: rintaro

CMakeLists.txt

@@ -954,7 +954,7 @@ if(SWIFT_PATH_TO_EARLYSWIFTSYNTAX_BUILD_DIR)
     set(SWIFT_SWIFT_PARSER TRUE)
     include(${SWIFT_PATH_TO_EARLYSWIFTSYNTAX_TARGETS})
 
-    if(SWIFT_HOST_VARIANT_SDK STREQUAL "LINUX" AND NOT BOOTSTRAPPING_MODE STREQUAL "HOSTTOOLS")
+    if(SWIFT_HOST_VARIANT_SDK MATCHES "LINUX|ANDROID|OPENBSD|FREEBSD" AND NOT BOOTSTRAPPING_MODE STREQUAL "HOSTTOOLS")
       # Only "HOSTTOOLS" is supported in Linux when Swift parser integration is enabled.
       message(WARNING "Force setting BOOTSTRAPPING=HOSTTOOLS because Swift parser integration is enabled")
       set(BOOTSTRAPPING_MODE "HOSTTOOLS")

lib/CMakeLists.txt

@@ -54,7 +54,7 @@ if (SWIFT_SWIFT_PARSER)
   # be found via RPATH.
   foreach (sharedlib ${SWIFT_SYNTAX_SHARED_LIBRARIES})
     set(add_origin_rpath)
-    if(SWIFT_HOST_VARIANT_SDK STREQUAL "LINUX")
+    if(SWIFT_HOST_VARIANT_SDK MATCHES "LINUX|ANDROID|OPENBSD|FREEBSD")
       # At runtime, use swiftCore in the current toolchain.
       swift_get_set_rpath_script_file(setrpath_command)
       set(add_origin_rpath COMMAND ${CMAKE_COMMAND}

lib/Macros/CMakeLists.txt

@@ -39,7 +39,7 @@ function(add_swift_macro_library name)
   _set_pure_swift_link_flags(${name} "${relpath_to_lib}")
 
   # Add rpath to 'lib/host'
-  if(SWIFT_HOST_VARIANT_SDK STREQUAL "LINUX")
+  if(SWIFT_HOST_VARIANT_SDK MATCHES "LINUX|ANDROID|OPENBSD|FREEBSD")
     set_property(TARGET ${name}
       APPEND PROPERTY INSTALL_RPATH "$ORIGIN/..")
   endif()