diff --git a/compiler-rt/test/builtins/Unit/lit.cfg.py b/compiler-rt/test/builtins/Unit/lit.cfg.py
--- a/compiler-rt/test/builtins/Unit/lit.cfg.py
+++ b/compiler-rt/test/builtins/Unit/lit.cfg.py
@@ -85,7 +85,7 @@
 # some ARM tests needs call_apsr.s
 call_apsr_source = os.path.join(builtins_lit_source_dir, 'arm', 'call_apsr.S')
 march_flag = '-march=' + target_arch
-call_apsr_flags = ['-c', march_flag, call_apsr_source]
+call_apsr_flags = target_cflags + ['-c', march_flag, call_apsr_source]
 config.substitutions.append( ("%arm_call_apsr ", \
                               build_invocation(call_apsr_flags)) )