[WIP2 1/5] lib: rename _debug_query to _notmuch_query_debug, make extern

[David Bremner]

This makes it available for use within the field processors.
---
 lib/notmuch-private.h |  5 +++++
 lib/query.cc          | 10 +++++-----
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/lib/notmuch-private.h b/lib/notmuch-private.h
index 9bdb68ab..f0657147 100644
--- a/lib/notmuch-private.h
+++ b/lib/notmuch-private.h
@@ -519,6 +519,11 @@ void
 _notmuch_doc_id_set_remove (notmuch_doc_id_set_t *doc_ids,
 			    unsigned int doc_id);
 
+/* utility function to control debugging output */
+
+bool
+_notmuch_query_debug ();
+
 /* querying xapian documents by type (e.g. "mail" or "ghost"): */
 notmuch_status_t
 _notmuch_query_search_documents (notmuch_query_t *query,
diff --git a/lib/query.cc b/lib/query.cc
index 792aba21..7b815dc5 100644
--- a/lib/query.cc
+++ b/lib/query.cc
@@ -67,8 +67,8 @@ _notmuch_doc_id_set_init (void *ctx,
 			  notmuch_doc_id_set_t *doc_ids,
 			  GArray *arr);
 
-static bool
-_debug_query (void)
+bool
+_notmuch_query_debug (void)
 {
     char *env = getenv ("NOTMUCH_DEBUG_QUERY");
 
@@ -90,7 +90,7 @@ notmuch_query_create (notmuch_database_t *notmuch,
 {
     notmuch_query_t *query;
 
-    if (_debug_query ())
+    if (_notmuch_query_debug ())
 	fprintf (stderr, "Query string is:\n%s\n", query_string);
 
     query = talloc (notmuch, notmuch_query_t);
@@ -334,7 +334,7 @@ _notmuch_query_search_documents (notmuch_query_t *query,
 	    break;
 	}
 
-	if (_debug_query ()) {
+	if (_notmuch_query_debug ()) {
 	    fprintf (stderr, "Exclude query is:\n%s\n",
 		     exclude_query.get_description ().c_str ());
 	    fprintf (stderr, "Final query is:\n%s\n",
@@ -638,7 +638,7 @@ _notmuch_query_count_documents (notmuch_query_t *query, const char *type, unsign
 	enquire.set_weighting_scheme (Xapian::BoolWeight ());
 	enquire.set_docid_order (Xapian::Enquire::ASCENDING);
 
-	if (_debug_query ()) {
+	if (_notmuch_query_debug ()) {
 	    fprintf (stderr, "Exclude query is:\n%s\n",
 		     exclude_query.get_description ().c_str ());
 	    fprintf (stderr, "Final query is:\n%s\n",
-- 
2.23.0.rc1