__gnu_inline__ 999 include/config.h # define _GL_INLINE extern inline __attribute__ ((__gnu_inline__)) __gnu_inline__ 450 maint/gnulib/lib/cdefs.h # define __extern_inline extern __inline __attribute__ ((__gnu_inline__)) __gnu_inline__ 452 maint/gnulib/lib/cdefs.h extern __always_inline __attribute__ ((__gnu_inline__))