From b27b3026f111037d3cf8b3f18e5bb2c8125611fc Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@math.tamu.edu>
Date: Wed, 16 May 2001 11:20:10 +0000
Subject: [PATCH] Include cmath, as that is necessary for std::sqrt.

git-svn-id: https://svn.dealii.org/trunk@4615 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/lac/include/lac/block_sparse_matrix.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/deal.II/lac/include/lac/block_sparse_matrix.h b/deal.II/lac/include/lac/block_sparse_matrix.h
index 6fe61bbde8..6de57cdea9 100644
--- a/deal.II/lac/include/lac/block_sparse_matrix.h
+++ b/deal.II/lac/include/lac/block_sparse_matrix.h
@@ -16,6 +16,8 @@
 
 #include <lac/sparse_matrix.h>
 #include <lac/block_sparsity_pattern.h>
+#include <cmath>
+
 
 template <typename Number> class BlockVector;
 
-- 
2.39.5