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-rw-r--r--src/system.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/system.h b/src/system.h
index 990be0c69..ba74da448 100644
--- a/src/system.h
+++ b/src/system.h
@@ -655,4 +655,4 @@ bad_cast (char const *s)
return (char *) s;
}
-void usage (int status);
+void usage (int status) ATTRIBUTE_NORETURN;