新建一个XCODE静态库工程

从unity安装目录中找到il2cpp源码

Editor\Data\il2cpp\

改名 il2cpp/libil2cpp -> il2cpp/il2cpp

加入工程中

->工程根目录

     extends/zlib

     libil2cpp/

buildSettings 相关设置

IOS Deployment Target

ios 12.0

Header Search Paths

$(inherited)
$(SRCROOT)
$(SRCROOT)/external/zlib
$(SRCROOT)/external/baselib/Include
$(SRCROOT)/external/baselib/Platforms/IOS/Include
$(SRCROOT)/external/bdwgc/include
$(SRCROOT)/il2cpp/os/ClassLibraryPAL/brotli/include
$(SRCROOT)/libmono
$(SRCROOT)/il2cpp

CLanguage Dialect 

gun11

C++Language Dialect

GUN++14

C++ Standard Libaray

libc++ (LLVM C++ starndad...)

预编译宏被卡了好久(最后参考了hybridclr的CMakeLists.txt)

Preprocessor Marcos

IL2CPP_TARGET_IOS=1 根据平台自选
BASELIB_DYNAMICLIBRARY=1 
BASELIB_INLINE_NAMESPACE=il2cpp_baselib 
IL2CPP_SUPPORT_THREADS 
IL2CPP_THREADS_PTHREAD 
IL2CPP_PLATFORM_SUPPORTS_TIMEZONEINFO

宏配置开关定义在il2cpp-config.h中 可以根据需求修改

User-Defined

LANG_CXX_LIBRARY = libc++
ENABLE_BITCODE = NO
VALIDATE_WORKSPACE = YES