inclhack.def (glibc_c99_inline_1): Define __USE_EXTERN_INLINES if __extern_inline or __GNUC_GNU_INLINE__ is...

	* inclhack.def (glibc_c99_inline_1): Define __USE_EXTERN_INLINES
	if __extern_inline or __GNUC_GNU_INLINE__ is defined rather than
	__STDC_VERSION__ < 199901L.
	(glibc_c99_inline_2): Replace #if __STDC_VERSION__ < 199901L
	with #ifdef __GNUC_GNU_INLINE__.
	(glibc_c99_inline_3): Add select.  Replace __STDC_VERSION__ >= 199901L
	with defined(__GNUC_STDC_INLINE__).
	(glibc_c99_inline_4): Change select, add second c_fix_arg.
	Replace #if __STDC_VERSION__ < 199901L with
	#ifdef __GNUC_GNU_INLINE__.
	* fixincl.x: Regenerated.
	* tests/base/bits/string2.h: Update.
	* tests/base/sys/sysmacros.h: Update.
	* tests/base/sys/stat.h: Update.

From-SVN: r123216