Automatically create .dSYM for libcompiler_rt.dylib when using Apple's internal build system

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@168625 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/make/AppleBI.mk b/make/AppleBI.mk
index 96f8222..b5e702b 100644
--- a/make/AppleBI.mk
+++ b/make/AppleBI.mk
@@ -64,8 +64,7 @@
 $(SYMROOT)/libcompiler_rt.dylib: $(foreach arch,$(filter-out armv4t,$(RC_ARCHS)), \
                                         $(OBJROOT)/libcompiler_rt-$(arch).dylib)
 	$(call GetCNAVar,LIPO,Platform.darwin_bni,Release,) -create $^ -o  $@
-
-
+	$(call GetCNAVar,DSYMUTIL,Platform.darwin_bni,Release,) $@
 
 
 # Copy results to DSTROOT.