diff --git a/programs/Makefile b/programs/Makefile
index 9ee9820..b03e613 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -1,23 +1,10 @@
-
-# To compile on SunOS: add "-lsocket -lnsl" to LDFLAGS
-
-CFLAGS	?= -O2
-WARNING_CFLAGS ?= -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
-WARNING_CXXFLAGS ?= -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
-LDFLAGS ?=
-
 MBEDTLS_TEST_PATH = ../tests
 # Support code used by test programs and test builds, excluding TLS-specific
 # code which is in the src/test_helpers subdirectory.
 MBEDTLS_TEST_OBJS = $(patsubst %.c,%.o,$(wildcard ${MBEDTLS_TEST_PATH}/src/*.c ${MBEDTLS_TEST_PATH}/src/drivers/*.c))
 
 LOCAL_CFLAGS = $(WARNING_CFLAGS) -I$(MBEDTLS_TEST_PATH)/include -I../include -D_FILE_OFFSET_BITS=64
-LOCAL_CXXFLAGS = $(WARNING_CXXFLAGS) -I../include -I../tests/include -D_FILE_OFFSET_BITS=64
-LOCAL_LDFLAGS = ${MBEDTLS_TEST_OBJS} 		\
-		-L../library 			\
-		-lmbedtls$(SHARED_SUFFIX)	\
-		-lmbedx509$(SHARED_SUFFIX)	\
-		-lmbedcrypto$(SHARED_SUFFIX)
+include ../scripts/common.make
 
 ifeq ($(shell uname -s),Linux)
 DLOPEN_LDFLAGS ?= -ldl
diff --git a/scripts/common.make b/scripts/common.make
new file mode 100644
index 0000000..cee8bd2
--- /dev/null
+++ b/scripts/common.make
@@ -0,0 +1,14 @@
+# To compile on SunOS: add "-lsocket -lnsl" to LDFLAGS
+
+CFLAGS	?= -O2
+WARNING_CFLAGS ?= -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
+WARNING_CXXFLAGS ?= -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
+LDFLAGS ?=
+
+LOCAL_CFLAGS = $(WARNING_CFLAGS) -I../tests/include -I../include -D_FILE_OFFSET_BITS=64
+LOCAL_CXXFLAGS = $(WARNING_CXXFLAGS) -I../include -I../tests/include -D_FILE_OFFSET_BITS=64
+LOCAL_LDFLAGS = ${MBEDTLS_TEST_OBJS} 		\
+		-L../library			\
+		-lmbedtls$(SHARED_SUFFIX)	\
+		-lmbedx509$(SHARED_SUFFIX)	\
+		-lmbedcrypto$(SHARED_SUFFIX)
diff --git a/tests/Makefile b/tests/Makefile
index f242b51..3a6fd59 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -1,23 +1,12 @@
-
-# To compile on SunOS: add "-lsocket -lnsl" to LDFLAGS
-
-CFLAGS	?= -O2
-WARNING_CFLAGS ?= -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
-LDFLAGS ?=
+include ../scripts/common.make
 
 # Set this to -v to see the details of failing test cases
 TEST_FLAGS ?= $(if $(filter-out 0 OFF Off off NO No no FALSE False false N n,$(CTEST_OUTPUT_ON_FAILURE)),-v,)
 
 default: all
 
-LOCAL_CFLAGS = $(WARNING_CFLAGS) -I$(MBEDTLS_TEST_PATH)/include -I../include -D_FILE_OFFSET_BITS=64
 # Also include library headers, for the sake of invasive tests.
 LOCAL_CFLAGS += -I../library
-LOCAL_LDFLAGS = ${MBEDTLS_TEST_OBJS} 		\
-		-L../library 			\
-		-lmbedtls$(SHARED_SUFFIX)	\
-		-lmbedx509$(SHARED_SUFFIX)	\
-		-lmbedcrypto$(SHARED_SUFFIX)
 
 include ../3rdparty/Makefile.inc
 LOCAL_CFLAGS+=$(THIRDPARTY_INCLUDES)