How to compile custom module for iOS in Godot3.1

Question

I'm trying to add Share module in my game for iOS platform. i have this repo for sharing module Godot-Share.

I'm using godot 3.1 and i download latest godot source code from Link.

To implement share module i follow this step to compile custom module.

1. Copy share folder to godot/modules folder.

2. Then i compile for iOS using this Link. I used following command to compile.

   scons p=iphone tools=no target=debug arch=arm
   
   scons p=iphone tools=no target=debug arch=arm64
   

   In godot/bin i get as result two files :

libgodot.iphone.debug.arm.a

libgodot.iphone.debug.arm64.a

3. After i used following command to generate *.debug.fat.a file.

   lipo -create bin/libgodot.iphone.debug.arm64.a bin/libgodot.iphone.debug.arm.a -output bin/libgodot.iphone.debug.fat.a
   

as result i get libgodot.iphone.debug.fat.a file in godot/bin folder.

4. i replaced libgodot.iphone.debug.fat.a file into godot/misc/dist/ios_xcode folder

5. i copied ios_xcode folder in documents, rename ios_xcode to iphone, then zip it. i get result file iphone.zip in Document folder.

6. Then i add iphone.zip file to Project>Export>Options>Custom Package>Debug

7. Then Export project.

   Error I'm Facing :

   Undefined symbols for architecture armv7:
   "_z_verbose", referenced from:
   _inflateInit2_ in FBLogin.a(ftgzip.iphone.debug.arm.o)
   _inflate in FBLogin.a(ftgzip.iphone.debug.arm.o)
   _inflateEnd in FBLogin.a(ftgzip.iphone.debug.arm.o)
   _inflateReset in FBLogin.a(ftgzip.iphone.debug.arm.o)
   _inflate_blocks_reset in FBLogin.a(ftgzip.iphone.debug.arm.o)
   _inflate_codes_free in FBLogin.a(ftgzip.iphone.debug.arm.o)
   _inflate_blocks_new in FBLogin.a(ftgzip.iphone.debug.arm.o)
   ...
   "_z_error", referenced from:
   _inflate_codes in FBLogin.a(ftgzip.iphone.debug.arm.o)
   ld: symbol(s) not found for architecture armv7
   clang: error: linker command failed with exit code 1 (use -v to see invocation)
   

So my question is : Am i compiling and linking custom module for iOS is right?

How do i solve above issue?

Answer 1

i'm facing this error because because i'm trying to build custom binary from different version source code and provide to different version of godot engine.

I found solution from godot github repo.

Answer : To generate custom binary for custom module you need same version of godot engine and same version source code of engine. In my case i solve using Godot 3.1 stable version for engine and source.

Here is link that provide step-by-step explanation of compile process.

Full Tutorial for Facebook Module Compile is here : Link