Add comment on GnuTLS library debugging facility
authorJeremy Harris <jgh146exb@wizmail.org>
Fri, 24 Nov 2017 20:24:40 +0000 (20:24 +0000)
committerJeremy Harris <jgh146exb@wizmail.org>
Fri, 24 Nov 2017 20:24:40 +0000 (20:24 +0000)
src/src/tls-gnu.c

index 898e37c..527ad28 100644 (file)
@@ -221,7 +221,8 @@ static BOOL gnutls_buggy_ocsp = FALSE;
 
 /* Set this to control gnutls_global_set_log_level(); values 0 to 9 will setup
 the library logging; a value less than 0 disables the calls to set up logging
-callbacks. */
+callbacks.  Possibly GNuTLS also looks for an environment variable
+"GNUTLS_DEBUG_LEVEL". */
 #ifndef EXIM_GNUTLS_LIBRARY_LOG_LEVEL
 # define EXIM_GNUTLS_LIBRARY_LOG_LEVEL -1
 #endif