From dd1829cfd55ad017b0b542f0eb96f5bb1ec38bca Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Fri, 11 Jan 2019 17:25:04 -0500
Subject: parse: Allow multiple comma-separated debug flags

---
 eval.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

(limited to 'eval.c')

diff --git a/eval.c b/eval.c
index 37f8bf5..84e68c2 100644
--- a/eval.c
+++ b/eval.c
@@ -96,14 +96,16 @@ static void eval_report_error(struct eval_state *state) {
 	}
 }
 
-#define DEBUG_FLAG(flags, flag)			\
-	if ((flags & flag) || flags == flag) {	\
-		fputs(#flag, stderr);		\
-		flags ^= flag;			\
-		if (flags) {			\
-			fputs(" | ", stderr);	\
-		}				\
-	}
+#define DEBUG_FLAG(flags, flag)				\
+	do {						\
+		if ((flags & flag) || flags == flag) {	\
+			fputs(#flag, stderr);		\
+			flags ^= flag;			\
+			if (flags) {			\
+				fputs(" | ", stderr);	\
+			}				\
+		}					\
+	} while (0)
 
 /**
  * Debug stat() calls.
-- 
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