Make it compile with gcc2.95

git-svn-id: https://svn.dealii.org/trunk@9109 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/lac/include/lac/petsc_vector_base.h b/deal.II/lac/include/lac/petsc_vector_base.h
index 7b7625827f91832f8d37bbdc66c86319b6f2f3b5..992e5130bcc95d1b187af7f407a85d20f9df5fc5 100644 (file)
--- a/deal.II/lac/include/lac/petsc_vector_base.h
+++ b/deal.II/lac/include/lac/petsc_vector_base.h
@@ -22,6 +22,8 @@
 
 #include <petscvec.h>
 
+#include <utility>
+
 /*! @addtogroup PETSc
  *@{
  */