From: Alois Wohlschlager <alois1@gmx-topmail.de>
Date: Wed, 19 Jan 2022 10:39:53 +0000 (+0100)
Subject: Make libsubid more easily usable from C++
X-Git-Tag: 4.12~70
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9a780cf22b680631d7684f49b2914dc27684500a;p=thirdparty%2Fshadow.git

Make libsubid more easily usable from C++

C++ requires extern "C" linkage specification to call functions from a C
library. Enclose the function definitions in subid.h in an extern "C"
block if compiling in C++ mode to achieve this.

Signed-off-by: Alois Wohlschlager <alois1@gmx-topmail.de>
---

diff --git a/libsubid/subid.h.in b/libsubid/subid.h.in
index 21b22a268..79744eda1 100644
--- a/libsubid/subid.h.in
+++ b/libsubid/subid.h.in
@@ -35,6 +35,10 @@ enum subid_status {
 	SUBID_STATUS_ERROR = 3,
 };
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * subid_init: initialize libsubid
  *
@@ -151,5 +155,9 @@ bool subid_ungrant_uid_range(struct subordinate_range *range);
  */
 bool subid_ungrant_gid_range(struct subordinate_range *range);
 
+#ifdef __cplusplus
+}
+#endif
+
 #define SUBID_NFIELDS 3
 #endif