[GENERAL] warning: libssl.so.4, needed by

Building my application and got the following error.

 

/usr/bin/ld: warning: libssl.so.4, needed by ../../../external/postgres/lib/libpq.so, not found (try using -rpath or -r
path-link)
/usr/bin/ld: warning: libcrypto.so.4, needed by ../../../external/postgres/lib/libpq.so, not found (try using -rpath or
 -rpath-link)
/usr/bin/ld: warning: libldap_r-2.2.so.7, needed by ../../../external/postgres/lib/libpq.so, not found (try using -rpat
h or -rpath-link)
../../../external/postgres/lib/libpq.so: undefined reference to `TLSv1_method'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_set_ex_data'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_connect'
../../../external/postgres/lib/libpq.so: undefined reference to `X509_STORE_load_locations'
../../../external/postgres/lib/libpq.so: undefined reference to `BIO_free'
../../../external/postgres/lib/libpq.so: undefined reference to `BIO_ctrl'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_get_values_len'
../../../external/postgres/lib/libpq.so: undefined reference to `CRYPTO_set_locking_callback'
../../../external/postgres/lib/libpq.so: undefined reference to `X509_NAME_oneline'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_simple_bind'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_CTX_set_verify'
../../../external/postgres/lib/libpq.so: undefined reference to `PEM_read_bio_PrivateKey'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_load_error_strings'
../../../external/postgres/lib/libpq.so: undefined reference to `X509_STORE_set_flags'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_get_peer_certificate'
../../../external/postgres/lib/libpq.so: undefined reference to `X509_get_subject_name'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_free'
../../../external/postgres/lib/libpq.so: undefined reference to `PEM_read_bio_X509'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_unbind'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_result'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_count_entries'
../../../external/postgres/lib/libpq.so: undefined reference to `X509_NAME_get_text_by_NID'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_CTX_new'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_read'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_value_free_len'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_set_fd'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_pending'
../../../external/postgres/lib/libpq.so: undefined reference to `ENGINE_load_private_key'
../../../external/postgres/lib/libpq.so: undefined reference to `CRYPTO_num_locks'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_first_entry'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_CTX_load_verify_locations'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_init'
../../../external/postgres/lib/libpq.so: undefined reference to `ERR_get_error'
../../../external/postgres/lib/libpq.so: undefined reference to `ERR_reason_error_string'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_msgfree'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_library_init'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_err2string'
../../../external/postgres/lib/libpq.so: undefined reference to `CRYPTO_set_id_callback'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_get_ex_data'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_new'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_write'
../../../external/postgres/lib/libpq.so: undefined reference to `OPENSSL_config'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_CTX_get_cert_store'
../../../external/postgres/lib/libpq.so: undefined reference to `X509_check_private_key'
../../../external/postgres/lib/libpq.so: undefined reference to `X509_free'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_shutdown'
../../../external/postgres/lib/libpq.so: undefined reference to `BIO_new_file'
../../../external/postgres/lib/libpq.so: undefined reference to `ldap_search_st'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_get_error'
../../../external/postgres/lib/libpq.so: undefined reference to `ENGINE_by_id'
../../../external/postgres/lib/libpq.so: undefined reference to `SSL_CTX_free'
collect2: ld returned 1 exit status

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