build: avoid spurious warnings from clang

* gzip.h (gzip_error): Declare with ATTRIBUTE_NORETURN.

diff --git a/gzip.h b/gzip.h
index 23434e0e1df95802caf9c1d639202391861fd894..6354842420189d3a108b93841039c01f3ce4c91e 100644 (file)
--- a/gzip.h
+++ b/gzip.h
@@ -330,7 +330,7 @@ extern char *gzip_base_name OF((char *fname));
 extern int xunlink        OF((char *fname));
 extern void make_simple_name OF((char *name));
 extern char *add_envopt   OF((int *argcp, char ***argvp, char *env));
-extern void gzip_error    OF((char *m));
+extern void gzip_error    OF((char *m)) ATTRIBUTE_NORETURN;
 extern void xalloc_die    OF((void)) ATTRIBUTE_NORETURN;
 extern void warning       OF((char *m));
 extern void read_error    OF((void));