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-rw-r--r--include/gudhi/Simplex_tree.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/gudhi/Simplex_tree.h b/include/gudhi/Simplex_tree.h
index ee96d5a2..3ab23c12 100644
--- a/include/gudhi/Simplex_tree.h
+++ b/include/gudhi/Simplex_tree.h
@@ -1057,7 +1057,10 @@ class Simplex_tree {
Dictionary_it next = siblings->members().begin();
++next;
- thread_local std::vector<std::pair<Vertex_handle, Node> > inter;
+#ifdef GUDHI_CAN_USE_CXX11_THREAD_LOCAL
+ thread_local
+#endif // GUDHI_CAN_USE_CXX11_THREAD_LOCAL
+ std::vector<std::pair<Vertex_handle, Node> > inter;
for (Dictionary_it s_h = siblings->members().begin();
s_h != siblings->members().end(); ++s_h, ++next) {
Simplex_handle root_sh = find_vertex(s_h->first);