bug#41348: emacs compilation with clang10 fails in the file lib-src/etags.c

[Benjamin Riefenstahl]

Eli Zaretskii writes:
> Does this mean Clang doesn't support __attribute__ ((__fallthrough__))?

It looks to like it does support it.  But it complains, that there is a
non-switch label "resetfvdef:" (for goto) between the annotation and the
next "case".  The correct fix is probably to move "resetfvdef:" after
the "case" labels.

diff --git a/lib-src/etags.c b/lib-src/etags.c
index 174c33a7a5..5eb7504e67 100644
--- a/lib-src/etags.c
+++ b/lib-src/etags.c
@@ -4196,9 +4196,9 @@ C_entries (int c_ext, FILE *inf)
              break;
            }
          FALLTHROUGH;
-       resetfvdef:
        case '#': case '~': case '&': case '%': case '/':
        case '|': case '^': case '!': case '.': case '?':
+       resetfvdef:
          if (definedef != dnone)
            break;
          /* These surely cannot follow a function tag in C. */

benny