Pacify clang 15.0.6 on Fedora 37

* configure.ac: Suppress clang -Wbitwise-instead-of-logical,
as there’s nothing wrong with using & and | on bool.
* src/coding.c: Suppress -Wunused-but-set-variable in this file,
as it’s too much trouble to recode to pacify clang.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/coding.c b/src/coding.c
index 49dcd8634f3..79461addd1a 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -651,6 +651,12 @@ growable_destination (struct coding_system *coding)
     consumed_chars++;                                   \
   } while (0)
 
+/* Suppress clang warnings about consumed_chars never being used.
+   Although correct, the warnings are too much trouble to code around.  */
+#if 13 <= __clang_major__
+# pragma clang diagnostic ignored "-Wunused-but-set-variable"
+#endif
+
 /* Safely get two bytes from the source text pointed by SRC which ends
    at SRC_END, and set C1 and C2 to those bytes while skipping the
    heading multibyte characters.  If there are not enough bytes in the