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Add the ability to specify a strict C99 environment with the

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_C99_SOURCE constant, which should be defined before including any
standard headers.
This commit is contained in:
Mike Barcroft 2002-10-21 20:50:30 +00:00
parent 1c67107149
commit bb8345d65b
1 changed files with 6 additions and 1 deletions
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7
sys/sys/cdefs.h
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@ -373,11 +373,16 @@
* _POSIX_C_SOURCE, we will assume that it wants the broader compilation
* environment (and in fact we will never get here).
*/
#ifdef _ANSI_SOURCE /* Hide almost everything. */
#if defined(_ANSI_SOURCE) /* Hide almost everything. */
#define __POSIX_VISIBLE 0
#define __XSI_VISIBLE 0
#define __BSD_VISIBLE 0
#define __ISO_C_VISIBLE 1990
#elif defined(_C99_SOURCE) /* Localism to specify strict C99 env. */
#define __POSIX_VISIBLE 0
#define __XSI_VISIBLE 0
#define __BSD_VISIBLE 0
#define __ISO_C_VISIBLE 1999
#else /* Default environment: show everything. */
#define __POSIX_VISIBLE 200112
#define __XSI_VISIBLE 600