[OpenMP][Fix] Conditional compilation leaves variables unused

Summary: Prevent variables from being left unused by conditional compilation.

Reviewers: ABataev, grokos, Hahnfeld, caomhin, protze.joachim

Reviewed By: Hahnfeld

Subscribers: guansong, openmp-commits

Differential Revision: https://reviews.llvm.org/D51303

llvm-svn: 340771

openmp/runtime/src/kmp_csupport.cpp

@@ -2570,6 +2570,7 @@ void __kmpc_set_nest_lock(ident_t *loc, kmp_int32 gtid, void **user_lock) {
 #endif
   int acquire_status =
       KMP_D_LOCK_FUNC(user_lock, set)((kmp_dyna_lock_t *)user_lock, gtid);
+  (void) acquire_status;
 #if USE_ITT_BUILD
   __kmp_itt_lock_acquired((kmp_user_lock_p)user_lock);
 #endif
@@ -2760,6 +2761,7 @@ void __kmpc_unset_nest_lock(ident_t *loc, kmp_int32 gtid, void **user_lock) {
 #endif
   int release_status =
       KMP_D_LOCK_FUNC(user_lock, unset)((kmp_dyna_lock_t *)user_lock, gtid);
+  (void) release_status;
 
 #if OMPT_SUPPORT && OMPT_OPTIONAL
   // This is the case, if called from omp_init_lock_with_hint: