clang GNUStep compilation difficulties

errors

 Compiling file Stores.subproj/MPWAbstractStore.m ...
Stores.subproj/MPWAbstractStore.m:60:50: error: array subscript is not an integer
                id subDescription=descriptionDict[key];
                                                 ^~~~
Stores.subproj/MPWAbstractStore.m:61:26: error: array subscript is not an integer
                storeDict[key] = [self mapStore:subDescription];
                         ^~~~
Stores.subproj/MPWAbstractStore.m:187:6: error: use of undeclared identifier '_name'
    [_name release];
     ^
Stores.subproj/MPWAbstractStore.m:188:6: error: use of undeclared identifier '_errors'
    [_errors release];
     ^
Stores.subproj/MPWAbstractStore.m:21:17: warning: property 'name' requires method 'name' to be defined - use @synthesize,
      @dynamic or provide a method implementation in this class implementation [-Wobjc-property-implementation]
@implementation MPWAbstractStore
                ^
Stores.subproj/MPWAbstractStore.h:45:42: note: property declared here
@property (nonatomic, retain)  NSString *name;
                                         ^
Stores.subproj/MPWAbstractStore.m:21:17: warning: property 'name' requires method 'setName:' to be defined - use @synthesize,
      @dynamic or provide a method implementation in this class implementation [-Wobjc-property-implementation]
@implementation MPWAbstractStore
                ^
Stores.subproj/MPWAbstractStore.h:45:42: note: property declared here
@property (nonatomic, retain)  NSString *name;
                                         ^
Stores.subproj/MPWAbstractStore.m:21:17: warning: property 'errors' requires method 'errors' to be defined - use @synthesize,
      @dynamic or provide a method implementation in this class implementation [-Wobjc-property-implementation]
@implementation MPWAbstractStore
                ^
Stores.subproj/MPWAbstractStore.h:44:54: note: property declared here
@property (nonatomic, retain)  NSObject <Streaming> *errors;
                                                     ^
Stores.subproj/MPWAbstractStore.m:21:17: warning: property 'errors' requires method 'setErrors:' to be defined - use
      @synthesize, @dynamic or provide a method implementation in this class implementation [-Wobjc-property-implementation]
@implementation MPWAbstractStore
                ^
Stores.subproj/MPWAbstractStore.h:44:54: note: property declared here
@property (nonatomic, retain)  NSObject <Streaming> *errors;
                                                     ^
4 warnings and 4 errors generated.

make-n

clang Stores.subproj/MPWAbstractStore.m -c \
      -MMD -MP -DGNUSTEP -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGNUSTEP_BASE_LIBRARY=1 -fno-strict-aliasing -fexceptions -fobjc-exceptions -D_NATIVE_OBJC_EXCEPTIONS -pthread -fPIC -Wall -DGSWARN -DGSDIAGNOSE -Wno-import -g -O2 -Wno-import -fgnu-runtime -fconstant-string-class=NSConstantString -I.headers -I. -I.. -I~/Build/MPWFoundation/derived_src -I. -I/home/gnustep/GNUstep/Library/Headers -I/usr/local/include/GNUstep -I/usr/include/GNUstep -fgnu-runtime -I/C/GNUstep/System/Headers -fconstant-string-class=NSConstantString \
       -o /home/gnustep/Build/MPWFoundation/obj/libMPWFoundation.obj/Stores.subproj/MPWAbstractStore.m.o)