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-rw-r--r--src/w32proc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/w32proc.c b/src/w32proc.c
index 217d005a363..90cef3231c8 100644
--- a/src/w32proc.c
+++ b/src/w32proc.c
@@ -224,7 +224,7 @@ sigismember (const sigset_t *set, int signo)
errno = EINVAL;
return -1;
}
- if (signo > sizeof (*set) * BITS_PER_CHAR)
+ if (signo > sizeof (*set) * CHAR_BIT)
emacs_abort ();
return (*set & (1U << signo)) != 0;