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-rw-r--r--lisc/lisc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lisc/lisc.h b/lisc/lisc.h
index a57a984..e0542da 100644
--- a/lisc/lisc.h
+++ b/lisc/lisc.h
@@ -474,7 +474,7 @@ extern char debug['Z'+1];
 /* util.c */
 extern Typ typ[NTyp];
 extern Ins insb[NIns], *curi;
-void diag(char *);
+void diag(char *) __attribute__((noreturn));
 void *emalloc(size_t);
 void *alloc(size_t);
 void freeall(void);