Added a Boost LEAF library copy.

dependencies/CMakeLists.txt

@@ -77,5 +77,6 @@ find_package(Gettext REQUIRED)
 
 
 add_subdirectory(catch2)
+add_subdirectory(leaf)
 add_subdirectory(nlohmann_json)
 add_subdirectory(whereami)

dependencies/leaf/CMakeLists.txt

@@ -0,0 +1,20 @@
+###############################################################################
+# License: BSD Zero Clause License file
+# Copyright:
+#   (C) 2022 Alexander Shaduri <ashaduri@gmail.com>
+###############################################################################
+
+add_library(boost_leaf INTERFACE)
+
+# Relative sources are allowed only since cmake 3.13.
+target_sources(boost_leaf INTERFACE
+	${CMAKE_CURRENT_SOURCE_DIR}/standalone/leaf.hpp
+	${CMAKE_CURRENT_SOURCE_DIR}/convenience/leaf_ns.h
+)
+
+target_include_directories(boost_leaf
+	INTERFACE SYSTEM
+		"${CMAKE_SOURCE_DIR}/dependencies/leaf/standalone"
+		"${CMAKE_SOURCE_DIR}/dependencies/leaf/convenience"
+)
+

dependencies/leaf/convenience/leaf_ns.h

@@ -0,0 +1,22 @@
+/******************************************************************************
+License: GNU General Public License v3.0 only
+Copyright:
+	(C) 2022 Alexander Shaduri <ashaduri@gmail.com>
+******************************************************************************/
+#ifndef APP_LEAF_NS_H
+#define APP_LEAF_NS_H
+
+#include "../standalone/leaf.hpp"
+
+
+/// Use leaf:: instead of boost::leaf for convenience
+namespace leaf {
+
+	using namespace boost::leaf;
+
+}
+
+
+#endif
+
+/// @}