Fix test compilation.

Makefile

@@ -163,10 +163,12 @@ test: aws_kms_pkcs11_test certificates_test
 	AWS_KMS_PKCS11_DEBUG=1 ./aws_kms_pkcs11_test
 
 certificates_test: certificates.cpp certificates_test.cpp
-	g++ -g -Wall certificates.cpp certificates_test.cpp -o certificates_test -lcrypto
+	g++ -g -fPIC -Wall -I$(AWS_SDK_PATH)/include $(PKCS11_INC) $(JSON_C_INC) -fno-exceptions -std=c++17 \
+        debug.cpp certificates.cpp certificates_test.cpp -o certificates_test $(STATIC_LIBS) $(LIBS) -lcrypto -ljson-c -lcurl
 
 aws_kms_pkcs11_test: aws_kms_pkcs11_test.c aws_kms_pkcs11.so
-	gcc -g -Wall $(PKCS11_INC) aws_kms_pkcs11_test.c -o aws_kms_pkcs11_test -ldl
+	g++ -g -fPIC -Wall -I$(AWS_SDK_PATH)/include $(PKCS11_INC) $(JSON_C_INC) -fno-exceptions -std=c++17 \
+        aws_kms_pkcs11_test.c -o aws_kms_pkcs11_test -ldl
 
 aws_kms_pkcs11.so: aws_kms_pkcs11.cpp unsupported.cpp aws_kms_slot.cpp debug.cpp attributes.cpp certificates.cpp
 	g++ -shared -fPIC -Wall -I$(AWS_SDK_PATH)/include $(PKCS11_INC) $(JSON_C_INC) -fno-exceptions -std=c++17 $(SRC) \

aws_kms_pkcs11_test.c

@@ -210,7 +210,7 @@ int main(int argc, char** argv) {
         return 1;
     }
 
-    pSlotList = malloc(slotCount * sizeof(CK_SLOT_ID));
+    pSlotList = (CK_SLOT_ID_PTR) malloc(slotCount * sizeof(CK_SLOT_ID));
     if (pSlotList == NULL) {
         printf("Failed to allocate memory to store slot IDs.");
         return 1;

certificates.h

@@ -1,5 +1,6 @@
+#include <string>
 #include <openssl/x509.h>
 
 X509* parseCertificateFromFile(const char* filename);
 X509* parseCertificateFromB64Der(const char* b64Der);
-X509* parseCertificateFromARN(const string &ca_arn, const string &arn, const std::string &region);
+X509* parseCertificateFromARN(const std::string &ca_arn, const std::string &arn, const std::string &region);