#ifndef on all header files

client/emv/test/cda_test.h

@@ -13,6 +13,9 @@
  * Lesser General Public License for more details.
  */
 
+#ifndef __CDA_TEST_H
+#define __CDA_TEST_H
 #include <stdbool.h>
 
 int exec_cda_test(bool verbose);
+#endif

client/emv/test/crypto_test.h

@@ -13,6 +13,9 @@
  * Lesser General Public License for more details.
  */
 
+#ifndef __CRYPTO_TEST_H
+#define __CRYPTO_TEST_H
 #include <stdbool.h>
 
 int exec_crypto_test(bool verbose);
+#endif

client/emv/test/cryptotest.h

@@ -8,6 +8,9 @@
 // Crypto algorithms testing
 //-----------------------------------------------------------------------------
 
+#ifndef __CRYPTOTEST_H
+#define __CRYPTOTEST_H
 #include <stdbool.h>
 
 int ExecuteCryptoTests(bool verbose);
+#endif

client/emv/test/dda_test.h

@@ -13,6 +13,9 @@
  * Lesser General Public License for more details.
  */
 
+#ifndef __DDA_TEST_H
+#define __DDA_TEST_H
 #include <stdbool.h>
 
 int exec_dda_test(bool verbose);
+#endif

client/emv/test/sda_test.h

@@ -13,4 +13,7 @@
  * Lesser General Public License for more details.
  */
 
+#ifndef __SDA_TEST_H
+#define __SDA_TEST_H
 int exec_sda_test(bool verbose);
+#endif