Replace std::unique_ptr with a custom implementation

<memory> is a costly header we can avoid by just implementing
UniquePtr ourselves, which is a pretty straightforward in modern
C++, this saves around 10% of the compilation time here.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/buffer_manager.cc b/src/buffer_manager.cc
index 539f160b..8b1309a0 100644
--- a/src/buffer_manager.cc
+++ b/src/buffer_manager.cc
@@ -34,7 +34,7 @@ Buffer* BufferManager::create_buffer(String name, Buffer::Flags flags, BufferLin
             throw runtime_error{"buffer name is already in use"};
     }
 
-    m_buffers.push_back(std::make_unique<Buffer>(std::move(name), flags, std::move(lines), bom, eolformat, fs_status));
+    m_buffers.push_back(make_unique_ptr<Buffer>(std::move(name), flags, std::move(lines), bom, eolformat, fs_status));
     auto* buffer = m_buffers.back().get();
     buffer->on_registered();