feat: Initiate CMake configuration

CMakeLists.txt

@@ -1,10 +1,44 @@
-project(casbin)
-
 cmake_minimum_required(VERSION 3.16)
 
-set(CMAKE_CXX_STANDARD 11)
-set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)
+set(CMAKE_WARN_DEPRECATED ON)
+
+if(APPLE AND NOT DEFINED CMAKE_OSX_DEPLOYMENT_TARGET)
+    # The value of this variable should be set prior to the first project() command invocation
+    # because it may influence configuration of the toolchain and flags.
+    set(CMAKE_OSX_DEPLOYMENT_TARGET "10.13" CACHE STRING "Minimum OS X deployment version")
+endif()
+
+###############################################################################
+# Project definition.
+
+project(Casbin-CPP 
+    VERSION 1.0.0
+    DESCRIPTION "An authorization library that supports access control models like ACL, RBAC, ABAC in C/C++"
+    HOMEPAGE_URL https://github.com/casbin/casbin-cpp
+    LANGUAGES CXX C)
+
 
-FILE(GLOB_RECURSE SC_FILES "casbin/*.cpp" "casbin/*.h")
+###############################################################################
+# Forbid in-source build.
+
+if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
+    message(FATAL_ERROR 
+            "In-source build not allowed. Please make a new sub-directory and run CMake from there.")
+endif()
+
+###############################################################################
+# Global CMake options.
+
+# Do not output install messages.
+if(NOT DEFINED CMAKE_INSTALL_MESSAGE)
+    set(CMAKE_INSTALL_MESSAGE "NEVER")
+endif()
+
+# Change the path max size to avoid problem on Windows.
+if(NOT DEFINED CMAKE_OBJECT_PATH_MAX)
+    set(CMAKE_OBJECT_PATH_MAX 300)
+endif()
+
+set(CMAKE_CXX_STANDARD 11)
 
-add_library(casbin ${SC_FILES})
+add_subdirectory(casbin)

casbin/CMakeLists.txt

@@ -0,0 +1,5 @@
+set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)
+
+FILE(GLOB_RECURSE SC_FILES "*.cpp" "*.h")
+
+add_library(casbin ${SC_FILES})