Index: lib/safestack/CMakeLists.txt
===================================================================
--- lib/safestack/CMakeLists.txt
+++ lib/safestack/CMakeLists.txt
@@ -6,29 +6,14 @@
 
 set(SAFESTACK_CFLAGS ${SANITIZER_COMMON_CFLAGS})
 
-if(APPLE)
-  # Build universal binary on APPLE.
+foreach(arch ${SAFESTACK_SUPPORTED_ARCH})
   add_compiler_rt_runtime(clang_rt.safestack
     STATIC
-    OS osx
-    ARCHS ${SAFESTACK_SUPPORTED_ARCH}
+    ARCHS ${arch}
     SOURCES ${SAFESTACK_SOURCES}
-            $<TARGET_OBJECTS:RTInterception.osx>
-            $<TARGET_OBJECTS:RTSanitizerCommon.osx>
-            $<TARGET_OBJECTS:RTSanitizerCommonNoLibc.osx>
+            $<TARGET_OBJECTS:RTInterception.${arch}>
+            $<TARGET_OBJECTS:RTSanitizerCommon.${arch}>
+            $<TARGET_OBJECTS:RTSanitizerCommonNoLibc.${arch}>
     CFLAGS ${SAFESTACK_CFLAGS}
     PARENT_TARGET safestack)
-else()
-  # Otherwise, build separate libraries for each target.
-  foreach(arch ${SAFESTACK_SUPPORTED_ARCH})
-    add_compiler_rt_runtime(clang_rt.safestack
-      STATIC
-      ARCHS ${arch}
-      SOURCES ${SAFESTACK_SOURCES}
-              $<TARGET_OBJECTS:RTInterception.${arch}>
-              $<TARGET_OBJECTS:RTSanitizerCommon.${arch}>
-              $<TARGET_OBJECTS:RTSanitizerCommonNoLibc.${arch}>
-      CFLAGS ${SAFESTACK_CFLAGS}
-      PARENT_TARGET safestack)
-  endforeach()
-endif()
+endforeach()
Index: test/safestack/lit.cfg
===================================================================
--- test/safestack/lit.cfg
+++ test/safestack/lit.cfg
@@ -18,5 +18,5 @@
 if config.lto_supported:
   config.substitutions.append((r"%clang_lto_safestack ", ' '.join(config.lto_launch + [config.clang] + config.lto_flags + ['-fsanitize=safe-stack '])))
 
-if config.host_os not in ['Linux', 'FreeBSD', 'Darwin', 'NetBSD']:
+if config.host_os not in ['Linux', 'FreeBSD', 'NetBSD']:
    config.unsupported = True
Index: test/safestack/pthread.c
===================================================================
--- test/safestack/pthread.c
+++ test/safestack/pthread.c
@@ -1,8 +1,6 @@
 // RUN: %clang_safestack %s -pthread -o %t
 // RUN: %run %t
 
-// XFAIL: darwin
-
 // Test that pthreads receive their own unsafe stack.
 
 #include <stdlib.h>