Error when compiling a static library using Swift “unknown option character `X' in: -Xlinker” [duplicate]

Answer 1

I have found the solution. This is hook, but it works. You should do this as root.

1. Go to default toolchain bin directory

   cd $(xcode-select -p)/Toolchains/XcodeDefault.xctoolchain/usr/bin

2. Rename current libtool to old_libtool

   mv libtool old_libtool

3. Create new libtool

   touch libtool && chmod +x libtool

4. Insert current script as content of new libtool

   #!/usr/bin/python
   import os
   import subprocess
   import sys
   args=[]
   for arg in sys.argv[1:]:
       if arg != '-Xlinker' and arg != '-add_ast_path' and not arg.endswith('swiftmodule'):
           args.append(arg)
   args.insert(0, os.path.join(os.path.dirname(os.path.realpath(__file__)), 'old_libtool'))
   subprocess.check_call(args)
   

5. Compile.

Answer 2

Update: It seems like the official release of Xcode 6 still has that same issue.

From the xcode 6 beta 2 release notes:

It is not possible to build static libraries which contain Swift code in this release