From 208c72f4dd88382146827a00ebe6c61cd5e4ad87 Mon Sep 17 00:00:00 2001
From: Hauke Petersen <hauke.petersen@fu-berlin.de>
Date: Tue, 3 Nov 2015 15:27:24 +0100
Subject: [PATCH] tests/driver_lps331ap: simplified Makefile

---
 tests/driver_lps331ap/Makefile | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/tests/driver_lps331ap/Makefile b/tests/driver_lps331ap/Makefile
index b590eeb18..df505e70d 100644
--- a/tests/driver_lps331ap/Makefile
+++ b/tests/driver_lps331ap/Makefile
@@ -6,17 +6,12 @@ FEATURES_REQUIRED = periph_i2c
 USEMODULE += lps331ap
 USEMODULE += xtimer
 
-ifneq (,$(TEST_LPS331AP_I2C))
-  CFLAGS += -DTEST_LPS331AP_I2C=$(TEST_LPS331AP_I2C)
-else
-  # set random default
-  CFLAGS += -DTEST_LPS331AP_I2C=I2C_0
-endif
-ifneq (,$(TEST_LPS331AP_ADDR))
-  CFLAGS += -DTEST_LPS331AP_ADDR=$(TEST_LPS331AP_ADDR)
-else
-  # set random default
-  CFLAGS += -DTEST_LPS331AP_ADDR=92
-endif
+# set default device parameters in case they are undefined
+TEST_LPS331AP_I2C  ?= I2C_0
+TEST_LPS331AP_ADDR ?= 92
+
+# export parameters
+CFLAGS += -DTEST_LPS331AP_I2C=$(TEST_LPS331AP_I2C)
+CFLAGS += -DTEST_LPS331AP_ADDR=$(TEST_LPS331AP_ADDR)
 
 include $(RIOTBASE)/Makefile.include