Remove make_unique compat

CMakeLists.txt

@@ -401,8 +401,6 @@ endif()
 try_compile(HAVE_STRING_VIEW ${CMAKE_BINARY_DIR} "${CMAKE_SOURCE_DIR}/checks/cxxsv.cpp")
 try_compile(HAVE_EXPERIMENTAL_STRING_VIEW ${CMAKE_BINARY_DIR} "${CMAKE_SOURCE_DIR}/checks/cxxsvexp.cpp")
 
-try_compile(HAVE_MAKE_UNIQUE ${CMAKE_BINARY_DIR} "${CMAKE_SOURCE_DIR}/checks/unique.cpp")
-
 configure_file("config.h.in" "config.h")
 
 set(BASE_DATA_SOURCES

checks/unique.cpp

@@ -1,6 +0,0 @@
-#include <memory>
-
-int main()
-{
-    auto ptr = std::make_unique<int>(5);
-}

config.h.in

@@ -3,5 +3,4 @@
 #cmakedefine HAVE_EXPERIMENTAL_FILESYSTEM
 #cmakedefine HAVE_STRING_VIEW
 #cmakedefine HAVE_EXPERIMENTAL_STRING_VIEW
-#cmakedefine HAVE_MAKE_UNIQUE
 #cmakedefine HAVE_WORDEXP

src/celcompat/memory.h

@@ -1,15 +0,0 @@
-#pragma once
-
-#include <config.h>
-#include <memory>
-
-#ifndef HAVE_MAKE_UNIQUE
-namespace std
-{
-template<typename T, typename... Args>
-std::unique_ptr<T> make_unique(Args&&... args)
-{
-    return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
-}
-}
-#endif

src/celestia/celestiacore.h

@@ -12,7 +12,7 @@
 
 #include <fstream>
 #include <string>
-#include <celcompat/memory.h>
+#include <memory>
 #include <celutil/filetype.h>
 #include <celutil/timer.h>
 #include <celutil/watcher.h>