trace: [make] replace 'ifeq' with values in CONFIG_TRACE_*

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>

diff --git a/Makefile.objs b/Makefile.objs
index 44d7238..833158b 100644 (file)
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -374,16 +374,14 @@ endif
 
 simpletrace.o: simpletrace.c $(GENERATED_HEADERS)
 
-ifeq ($(TRACE_BACKEND),dtrace)
-trace-obj-y = trace-dtrace.o
-else
+trace-obj-$(CONFIG_TRACE_DTRACE) += trace-dtrace.o
+ifneq ($(TRACE_BACKEND),dtrace)
 trace-obj-y = trace.o
-ifeq ($(TRACE_BACKEND),simple)
-trace-obj-y += simpletrace.o
-trace-obj-y += qemu-timer-common.o
-endif
 endif
 
+trace-obj-$(CONFIG_TRACE_SIMPLE) += simpletrace.o
+trace-obj-$(CONFIG_TRACE_SIMPLE) += qemu-timer-common.o
+
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 # smartcard