From 9d9c66adc9dc459cffacc0bd0e2e6f5a97e2bcf4 Mon Sep 17 00:00:00 2001
From: Supakorn 'Jamie' Rassameemasmuang <jamievlin@outlook.com>
Date: Sun, 31 Dec 2023 14:26:38 -0700
Subject: [PATCH] OPTIONAL: Add Optional backport to build.

---
 CMakeLists.txt                    | 1 +
 backports/optional/CMakeLists.txt | 6 ++++++
 cmake-scripts/backport-libs.cmake | 3 +++
 3 files changed, 10 insertions(+)
 create mode 100644 backports/optional/CMakeLists.txt
 create mode 100644 cmake-scripts/backport-libs.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 91bea2890..2fdf853be 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,6 +20,7 @@ endif()
 build_files_to_src(CORE_BUILD_FILES CORE_SOURCE_FILES)
 include(cmake-scripts/external-libs.cmake)
 include(cmake-scripts/thirdparty-impl.cmake)
+include(cmake-scripts/backport-libs.cmake)
 
 # PRC
 add_subdirectory(prc/)
diff --git a/backports/optional/CMakeLists.txt b/backports/optional/CMakeLists.txt
new file mode 100644
index 000000000..bf506918c
--- /dev/null
+++ b/backports/optional/CMakeLists.txt
@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.26)
+
+project(OptionalBackport)
+
+add_library(OptionalBackport INTERFACE)
+target_include_directories(OptionalBackport INTERFACE ${CMAKE_CURRENT_LIST_DIR}/include/)
\ No newline at end of file
diff --git a/cmake-scripts/backport-libs.cmake b/cmake-scripts/backport-libs.cmake
new file mode 100644
index 000000000..3aa7391a6
--- /dev/null
+++ b/cmake-scripts/backport-libs.cmake
@@ -0,0 +1,3 @@
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/backports/optional)
+
+list(APPEND ASY_STATIC_LIBARIES OptionalBackport)
\ No newline at end of file