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-rw-r--r--third_party/nix/src/libexpr/names.cc5
1 files changed, 3 insertions, 2 deletions
diff --git a/third_party/nix/src/libexpr/names.cc b/third_party/nix/src/libexpr/names.cc
index 184f30999e6b..ecad90c960af 100644
--- a/third_party/nix/src/libexpr/names.cc
+++ b/third_party/nix/src/libexpr/names.cc
@@ -1,5 +1,7 @@
 #include "names.hh"
 
+#include <memory>
+
 #include "util.hh"
 
 namespace nix {
@@ -26,8 +28,7 @@ DrvName::DrvName(const string& s) : hits(0) {
 bool DrvName::matches(DrvName& n) {
   if (name != "*") {
     if (!regex) {
-      regex = std::unique_ptr<std::regex>(
-          new std::regex(name, std::regex::extended));
+      regex = std::make_unique<std::regex>(name, std::regex::extended);
     }
     if (!std::regex_match(n.name, *regex)) {
       return false;