From 58b96645c93395c7a109aa6e43cb5fff2c5b4647 Mon Sep 17 00:00:00 2001
From: Heiko Becker <mail@heiko-becker.de>
Date: Fri, 18 Aug 2023 18:23:56 +0200
Subject: [PATCH] Replace __{BEGIN,END}_DECLS with #ifdef __cplusplus

Fixes the build with musl libc.

Cherry-picked-from: 890f911e17169e44b43fe98742540267093559ea
Link: <https://github.com/shadow-maint/shadow/pull/789>
Reviewed-by: Michael Vetter <jubalh@iodoru.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
---
 lib/readpassphrase.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/readpassphrase.h b/lib/readpassphrase.h
index 2462ecc3..2530b7fe 100644
--- a/lib/readpassphrase.h
+++ b/lib/readpassphrase.h
@@ -36,8 +36,12 @@
 #endif
 #include <sys/types.h>
 
-__BEGIN_DECLS
+#ifdef __cplusplus
+extern "C" {
+#endif
 char * readpassphrase(const char *, char *, size_t, int);
-__END_DECLS
+#ifdef __cplusplus
+}
+#endif
 
 #endif /* !LIBBSD_READPASSPHRASE_H */