Add ifdef guards for C++ code

1 files changed, 8 insertions, 0 deletions

diff --git a/include/unistd.h b/include/unistd.h
index 6b502b5..2403db1 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -5,6 +5,10 @@
 
 #if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 static inline __attribute__ ((always_inline))
 size_t
 __fortify_confstr(int name, char *buf, size_t len)
@@ -168,6 +172,10 @@ __fortify_write(int fd, const void *buf, size_t n)
 #undef write
 #define write(fd, buf, n) __fortify_write(fd, buf, n)
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
 
 #endif