Is there a one-step solution for line 10? Currently I must assign a compiler flag to a .m file with `-DCOMPILE_ONCE`.

Prefix.pch

#ifdef __OBJC__

#import <Foundation/Foundation.h>

#define BUNDLE_NAME CXAFileManagerResourceBundle
extern NSBundle *BUNDLE_NAME;
#undef NSLocalizedString
#define NSLocalizedString(key, comment) [BUNDLE_NAME localizedStringForKey:(key) value:@"" table:nil]

#ifdef COMPILE_ONCE

NSBundle *BUNDLE_NAME;

@interface CXAResourceBundleLoader : NSObject @end

@implementation CXAResourceBundleLoader

+ (void)load
{
  static dispatch_once_t onceToken;
  dispatch_once(&onceToken, ^{
    BUNDLE_NAME = [NSBundle bundleWithURL:[[NSBundle mainBundle] URLForResource:@"CXAFMResources" withExtension:@"bundle"]];
  });
}

@end

#endif

#endif