CoreBase and ARC

[Maxthon Chan]

I am getting a bit of trouble compiling code with CoreBase and ARC at the same 
time. I am using latest trunk version of base and corebase on Ubuntu 14.04 LTS 
with clang 3.5. Here is the log:

$ make
This is gnustep-make 2.6.6. Type 'make print-gnustep-make-help' for help.
Making build-headers for framework CGIKit...
 Creating CGIKit.framework/Versions/H/Headers...
 Creating derived_src/.stamp...
 Creating CGIKit.framework/Versions/H/Resources...
 Updating Version/Current symlink...
Making all for framework CGIKit...
 Compiling file CGIApplication.m ...
In file included from CGIApplication.m:9:
In file included from ./CGIApplication.h:12:
In file included from ../CGIKit/CGIKitDefines.h:51:
In file included from 
/usr/local/include/GNUstep/CoreFoundation/CoreFoundation.h:36:
In file included from /usr/local/include/GNUstep/CoreFoundation/CFBundle.h:31:
In file included from /usr/local/include/GNUstep/CoreFoundation/CFURL.h:34:
/usr/local/include/GNUstep/CoreFoundation/CFString.h:538:15: error: ARC forbids 
Objective-C objects in struct
  CFStringRef theString;
              ^
In file included from CGIApplication.m:9:
In file included from ./CGIApplication.h:12:
In file included from ../CGIKit/CGIKitDefines.h:51:
In file included from 
/usr/local/include/GNUstep/CoreFoundation/CoreFoundation.h:48:
In file included from 
/usr/local/include/GNUstep/CoreFoundation/CFPropertyList.h:33:
In file included from /usr/local/include/GNUstep/CoreFoundation/CFStream.h:33:
/usr/local/include/GNUstep/CoreFoundation/CFSocket.h:61:13: error: ARC forbids 
Objective-C objects in struct
  CFDataRef address;
            ^
In file included from CGIApplication.m:9:
In file included from ./CGIApplication.h:12:
In file included from ../CGIKit/CGIKitDefines.h:51:
In file included from 
/usr/local/include/GNUstep/CoreFoundation/CoreFoundation.h:60:
/usr/local/include/GNUstep/CoreFoundation/CFXMLNode.h:76:12: error: ARC forbids 
Objective-C objects in struct
  CFURLRef systemID;
           ^
/usr/local/include/GNUstep/CoreFoundation/CFXMLNode.h:83:15: error: ARC forbids 
Objective-C objects in struct
  CFStringRef attributeName;
              ^
/usr/local/include/GNUstep/CoreFoundation/CFXMLNode.h:98:12: error: ARC forbids 
Objective-C objects in struct
  CFURLRef sourceURL;
           ^
/usr/local/include/GNUstep/CoreFoundation/CFXMLNode.h:111:19: error: ARC 
forbids Objective-C objects in struct
  CFDictionaryRef attributes;
                  ^
/usr/local/include/GNUstep/CoreFoundation/CFXMLNode.h:119:15: error: ARC 
forbids Objective-C objects in struct
  CFStringRef contentDescription;
              ^
/usr/local/include/GNUstep/CoreFoundation/CFXMLNode.h:126:15: error: ARC 
forbids Objective-C objects in struct
  CFStringRef replacementText;
              ^
/usr/local/include/GNUstep/CoreFoundation/CFXMLNode.h:146:15: error: ARC 
forbids Objective-C objects in struct
  CFStringRef dataString;
              ^
CGIApplication.m:30:65: error: expected method body
- (instancetype)_init __attribute__((objc_method_family(init))) 
NS_REPLACES_RECEIVER
                                                                ^
10 errors generated.
make[2]: *** [obj/CGIKit.obj/CGIApplication.m.o] Error 1
make[1]: *** [internal-framework-run-compile-submake] Error 2
make: *** [CGIKit.all.framework.variables] Error 2

And then I got this trying to check for “pesky typedefs":

$ clang -E $(gnustep-config --objc-flags) -fobjc-arc -I. -I.. CGIApplication.m
// … lines removed …
# 268 "/usr/local/include/GNUstep/CoreFoundation/CFBase.h"
typedef CFTypeRef CFPropertyListRef;





@class NSString;
@class NSMutableString;
typedef NSString * CFStringRef;
typedef NSMutableString * CFMutableStringRef;
# 294 "/usr/local/include/GNUstep/CoreFoundation/CFBase.h"
typedef const struct __CFAllocator * CFAllocatorRef;

typedef void* (*CFAllocatorAllocateCallBack)(CFIndex allocSize,
  CFOptionFlags hint, void *info);
// … lines removed …

The typedef here works “seemingly” well without ARC but it bites me in the ass 
when ARC is used.

Does this call for a change? How to do it?