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Add cc-compat.h - C compiler compat macros for internal use

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Holds things such as FLEX_ARRAY and whatnot.

Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This commit is contained in:
Andreas Ericsson 2008-11-22 14:40:51 +01:00 committed by Shawn O. Pearce
parent c215be4120
commit f501265f97
1 changed files with 33 additions and 0 deletions
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33
src/cc-compat.h Normal file
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/*
* cc-compat.h - C compiler compat macros for internal use
*/
#ifndef INCLUDE_compat_h__
#define INCLUDE_compat_h__
/*
* See if our compiler is known to support flexible array members.
*/
#ifndef FLEX_ARRAY
# if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
# define FLEX_ARRAY /* empty */
# elif defined(__GNUC__)
# if (__GNUC__ >= 3)
# define FLEX_ARRAY /* empty */
# else
# define FLEX_ARRAY 0 /* older GNU extension */
# endif
# endif
/* Default to safer but a bit wasteful traditional style */
# ifndef GIT_FLEX_ARRAY
# define GIT_FLEX_ARRAY 1
# endif
#endif
#ifdef __GNUC__
# define TYPEOF(x) (__typeof__(x))
#else
# define TYPEOF(x)
#endif
#endif /* INCLUDE_compat_h__ */