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Remove OS_PACK define #644

@skliper

Description

@skliper

Is your feature request related to a problem? Please describe.
Shouldn't use non-standard packing options. Really should scrub the list.

/*
** Define compiler specific macros
** The __extension__ compiler pragma is required
** for the uint64 type using GCC with the ANSI C90 standard.
** Other macros can go in here as needed, for example alignment
** pragmas.
**
** NOTE: The white-box (coverage) unit testing may need to disable
** these extra attributes. These test builds define the OSAPI_NO_SPECIAL_ATTRIBS
** macro to disable this.
*/
#if defined(__GNUC__) && !defined(OSAPI_NO_SPECIAL_ATTRIBS)
#define _EXTENSION_ __extension__
#define OS_PACK __attribute__((packed))
#define OS_ALIGN(n) __attribute__((aligned(n)))
#define OS_USED __attribute__((used))
#define OS_PRINTF(n, m) __attribute__((format(printf, n, m)))
#else
#define _EXTENSION_
#define OS_PACK
#define OS_ALIGN(n)
#define OS_USED
#define OS_PRINTF(n, m)
#endif

Describe the solution you'd like
Remove/scrub

Describe alternatives you've considered
None

Additional context
None

Requester Info
Jacob Hageman - NASA/GSFC

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