From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Mon, 24 Apr 2017 22:05:45 +0000 (-0600)
Subject: Avoid a warning in optimized mode.
X-Git-Tag: v9.0.0-rc1~1656^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5f596afcb83abeb763a2628a025c6fd69f5fe24;p=dealii.git

Avoid a warning in optimized mode.
---

diff --git a/source/lac/slepc_spectral_transformation.cc b/source/lac/slepc_spectral_transformation.cc
index e4d8503a3b..da0087a096 100644
--- a/source/lac/slepc_spectral_transformation.cc
+++ b/source/lac/slepc_spectral_transformation.cc
@@ -42,6 +42,7 @@ namespace SLEPcWrappers
     if (st!=nullptr)
       {
         const PetscErrorCode ierr = STDestroy(&st);
+        (void)ierr;
         AssertNothrow (ierr == 0, SolverBase::ExcSLEPcError(ierr));
       }
   }