From f44c94f24c2422c5ee1c4c58253ec17412b248a9 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Tue, 7 Dec 2021 09:21:24 +0100
Subject: [PATCH] conf: accept '_' character in the variable name

Fixes: https://github.com/alsa-project/alsa-lib/issues/197
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
 src/confeval.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/confeval.c b/src/confeval.c
index a971bf38..be9ac874 100644
--- a/src/confeval.c
+++ b/src/confeval.c
@@ -190,7 +190,7 @@ int _snd_eval_string(snd_config_t **dst, const char *s,
 			} else {
 				e = s + 1;
 				while (*e) {
-					if (!isalnum(*e))
+					if (!isalnum(*e) && *e != '_')
 						break;
 					e++;
 				}
-- 
2.47.1