From fb04611ff7521d09804b243d25a586ec49b5d26d Mon Sep 17 00:00:00 2001
From: Michal Privoznik <mprivozn@redhat.com>
Date: Thu, 17 Oct 2024 10:42:55 +0200
Subject: [PATCH] crypto_backend.h: Wrap APIs in extern C

It's a good practice to mark public APIs as extern "C" so that
projects written in C++ can use our library.

[mbroz] It is not public API in cryptsetup, but we use this backend
in other projects, this aligns the code changes.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
---
 lib/crypto_backend/crypto_backend.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/crypto_backend/crypto_backend.h b/lib/crypto_backend/crypto_backend.h
index 948575ea..14af97d3 100644
--- a/lib/crypto_backend/crypto_backend.h
+++ b/lib/crypto_backend/crypto_backend.h
@@ -21,6 +21,10 @@
 #define char16_t uint16_t
 #endif
 
+# ifdef __cplusplus
+extern "C" {
+# endif
+
 struct crypt_hash;
 struct crypt_hmac;
 struct crypt_cipher;
@@ -143,4 +147,8 @@ int crypt_backend_memeq(const void *m1, const void *m2, size_t n);
 /* crypto backend running in FIPS mode */
 bool crypt_fips_mode(void);
 
+# ifdef __cplusplus
+}
+# endif
+
 #endif /* _CRYPTO_BACKEND_H */