Add missing 'extern "C" {' to some _err.h files in crypto/engines/
PR: 1609
diff --git a/engines/e_sureware_err.h b/engines/e_sureware_err.h
index 82af229..ec8ed0c 100644
--- a/engines/e_sureware_err.h
+++ b/engines/e_sureware_err.h
@@ -55,6 +55,10 @@
#ifndef HEADER_SUREWARE_ERR_H
#define HEADER_SUREWARE_ERR_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
* made after this point may be overwritten when the script is next run.
