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macros: Define restrict keyword if not available
This change always defines the restrict keyword if a non-C99 C compiler is used. In the case of GCC >= 4 it will be defined to __restrict__, in all other cases to nothing. This allows to use the restrict keyword unconditionally.
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@ -39,6 +39,14 @@ G_BEGIN_DECLS
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# undef GST_CAN_INLINE
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# undef GST_CAN_INLINE
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#endif
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#endif
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#if (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L) && !defined(restrict)
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# if defined(__GNUC__) && __GNUC__ >= 4
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# define restrict __restrict__
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# else
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# define restrict
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# endif
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#endif
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G_END_DECLS
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G_END_DECLS
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#endif /* __GST_MACROS_H__ */
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#endif /* __GST_MACROS_H__ */
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