Bug 161316: make pk11pqg.h C++ safe.

security/nss/lib/pk11wrap/pk11pqg.h

@@ -40,6 +40,8 @@
 #include "blapit.h"
 #include "pqgutil.h"
 
+SEC_BEGIN_PROTOS
+
 /* Generate PQGParams and PQGVerify structs.
  * Length of seed and length of h both equal length of P. 
  * All lengths are specified by "j", according to the table above.
@@ -146,4 +148,6 @@ extern SECStatus PK11_PQG_GetSeedFromVerify(const PQGVerify *verify,
  **************************************************************************/
 extern SECStatus PK11_PQG_GetHFromVerify(const PQGVerify *verify, SECItem * h);
 
+SEC_END_PROTOS
+
 #endif