mlavacca / sgx-pkcs11 Goto Github PK

When I try to build the enclave, I get the following errors
make -f enclave.mk all make[1]: Entering directory '/home/hisham/Code/sgx-pkcs11' /usr/local/bin/ld: /opt/intel/sgxssl/lib64/libsgx_tsgxssl_crypto.a(threads_pthread.o): in function CRYPTO_THREAD_lock_new':
threads_pthread.c:(.text+0x45): undefined reference to pthread_rwlock_init' /usr/local/bin/ld: /opt/intel/sgxssl/lib64/libsgx_tsgxssl_crypto.a(threads_pthread.o): in function CRYPTO_THREAD_read_lock':
threads_pthread.c:(.text+0x75): undefined reference to pthread_rwlock_rdlock' /usr/local/bin/ld: /opt/intel/sgxssl/lib64/libsgx_tsgxssl_crypto.a(threads_pthread.o): in function CRYPTO_THREAD_write_lock':
threads_pthread.c:(.text+0x95): undefined reference to pthread_rwlock_wrlock' /usr/local/bin/ld: /opt/intel/sgxssl/lib64/libsgx_tsgxssl_crypto.a(threads_pthread.o): in function CRYPTO_THREAD_unlock':
threads_pthread.c:(.text+0xb5): undefined reference to pthread_rwlock_unlock' /usr/local/bin/ld: /opt/intel/sgxssl/lib64/libsgx_tsgxssl_crypto.a(threads_pthread.o): in function CRYPTO_THREAD_lock_free':
threads_pthread.c:(.text+0xda): undefined reference to pthread_rwlock_destroy' collect2: error: ld returned 1 exit status

The App compiles successfully though.

I'm using Ubuntu 18.04
SGX_SDK= /opt/intel/sgxsdk
SGX_SSL= /opt/intel/sgxssl
OPENSSL_PATH= /usr/local/ssl

I'm trying to find out what is wrong in my configuration