diff --git a/debian/libwsutil0.symbols b/debian/libwsutil0.symbols
index 511f0d0f34..b448f98bfe 100644
--- a/debian/libwsutil0.symbols
+++ b/debian/libwsutil0.symbols
@@ -239,6 +239,7 @@ libwsutil.so.0 libwsutil0 #MINVER#
  ws_log_set_level@Base 3.5.0
  ws_log_set_level_str@Base 3.5.0
  ws_logv@Base 3.5.0
+ ws_logv_full@Base 3.5.0
  ws_mempbrk_compile@Base 1.99.4
  ws_mempbrk_exec@Base 1.99.4
  ws_pipe_close@Base 2.6.5
diff --git a/wsutil/wslog.c b/wsutil/wslog.c
index 7ae9c9b2be..d1cd117ec2 100644
--- a/wsutil/wslog.c
+++ b/wsutil/wslog.c
@@ -419,6 +419,20 @@ void ws_logv(const char *domain, enum ws_log_level level,
 }
 
 
+void ws_logv_full(const char *domain, enum ws_log_level level,
+                    const char *file, int line, const char *func,
+                    const char *format, va_list ap)
+{
+    if (domain == NULL || domain[0] == '\0')
+        domain = LOG_DOMAIN_DEFAULT;
+
+    if (log_drop_message(domain, level))
+        return;
+
+    log_write_dispatch(domain, level, file, line, func, format, ap);
+}
+
+
 void ws_log(const char *domain, enum ws_log_level level,
                     const char *format, ...)
 {
diff --git a/wsutil/wslog.h b/wsutil/wslog.h
index 04a0dd7ad6..fa7dba3170 100644
--- a/wsutil/wslog.h
+++ b/wsutil/wslog.h
@@ -168,6 +168,17 @@ void ws_log_full(const char *domain, enum ws_log_level level,
                     const char *format, ...) G_GNUC_PRINTF(6,7);
 
 
+/** This function is called to output a message to the log.
+ *
+ * In addition to the message this function accepts file/line/function
+ * information. 'func' may be NULL.
+ */
+WS_DLL_PUBLIC
+void ws_logv_full(const char *domain, enum ws_log_level level,
+                    const char *file, int line, const char *func,
+                    const char *format, va_list ap);
+
+
 #define _LOG_FULL(level, ...) ws_log_full(WS_LOG_DOMAIN, level,  \
                                    __FILE__, __LINE__, G_STRFUNC, __VA_ARGS__)