/usr/include/GNUstep/ObjectiveC2/blocks_runtime.h is in libgnustep-base-dev 1.22.1-4+deb7u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | /*
* Blocks Runtime
*/
#include "ObjectiveC2/Availability.h"
#ifdef __cplusplus
#define BLOCKS_EXPORT extern "C"
#else
#define BLOCKS_EXPORT extern
#endif
BLOCKS_EXPORT void *_Block_copy(void *);
BLOCKS_EXPORT void _Block_release(void *);
BLOCKS_EXPORT const char *_Block_get_types(void*) OBJC_NONPORTABLE;
#define Block_copy(x) ((__typeof(x))_Block_copy((void *)(x)))
#define Block_release(x) _Block_release((void *)(x))
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