@@ -256,14 +256,18 @@ pqsecure_open_client(PGconn *conn)
256256/* First time through? */
257257if (conn -> ssl == NULL )
258258{
259+ #ifdef ENABLE_THREAD_SAFETY
260+ int rc ;
261+ #endif
262+
259263/* We cannot use MSG_NOSIGNAL to block SIGPIPE when using SSL */
260264conn -> sigpipe_flag = false;
261265
262266#ifdef ENABLE_THREAD_SAFETY
263- if (pthread_mutex_lock (& ssl_config_mutex ))
267+ if (( rc = pthread_mutex_lock (& ssl_config_mutex ) ))
264268{
265269printfPQExpBuffer (& conn -> errorMessage ,
266- libpq_gettext ("unable to acquire mutex\n" ));
270+ libpq_gettext ("could not acquire mutex: %s \n" ), strerror ( rc ));
267271return PGRES_POLLING_FAILED ;
268272}
269273#endif
@@ -1115,10 +1119,12 @@ initialize_SSL(PGconn *conn)
11151119 * SSL_context struct.
11161120 */
11171121#ifdef ENABLE_THREAD_SAFETY
1118- if (pthread_mutex_lock (& ssl_config_mutex ))
1122+ int rc ;
1123+
1124+ if ((rc = pthread_mutex_lock (& ssl_config_mutex )))
11191125{
11201126printfPQExpBuffer (& conn -> errorMessage ,
1121- libpq_gettext ("unable to acquire mutex\n" ));
1127+ libpq_gettext ("could not acquire mutex: %s \n" ), strerror ( rc ));
11221128return -1 ;
11231129}
11241130#endif
@@ -1333,10 +1339,12 @@ initialize_SSL(PGconn *conn)
13331339X509_STORE * cvstore ;
13341340
13351341#ifdef ENABLE_THREAD_SAFETY
1336- if (pthread_mutex_lock (& ssl_config_mutex ))
1342+ int rc ;
1343+
1344+ if ((rc = pthread_mutex_lock (& ssl_config_mutex )))
13371345{
13381346printfPQExpBuffer (& conn -> errorMessage ,
1339- libpq_gettext ("unable to acquire mutex\n" ));
1347+ libpq_gettext ("could not acquire mutex: %s \n" ), strerror ( rc ));
13401348return -1 ;
13411349}
13421350#endif