_GL_INLINE_HEADER_BEGIN/END left behind

[Bruce Korb]

The compile error message:

> gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I..  -I../lib -I../src -I../lib 
> -I../libopts \
>   -I../libopts   -g -O2 -MT pw-pw.o -MD -MP -MF .deps/pw-pw.Tpo \
>   -c -o pw-pw.o `test -f 'pw.c' || echo './'`pw.c
> In file included from pw.h:47:0,
>                  from pw.c:20:
> ../lib/unistd.h:603:1: error: expected '=', ',', ';', 'asm' or '__attribute__' 
> before 'extern'

lib/unistd.h contains:

    593 #if 1
    594 # if 0
    595 /* Automatically included by modules that need a replacement for close. 
 */
    596 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
    597 #   undef close
    598 #   define close rpl_close
    599 #  endif
    600 _GL_FUNCDECL_RPL (close, int, (int fd));
    601 _GL_CXXALIAS_RPL (close, int, (int fd));
    602 # else
    603 _GL_CXXALIAS_SYS (close, int, (int fd));
    604 # endif
    605 _GL_CXXALIASWARN (close);
    606 #elif 0
    607 # undef close
    608 # define close close_used_without_requesting_gnulib_module_close
    609 #elif defined GNULIB_POSIXCHECK
    610 # undef close
    611 /* Assume close is always declared.  */
    612 _GL_WARN_ON_USE (close, "close does not portably work on sockets - "
    613                  "use gnulib module close for portability");
    614 #endif

The post-pre-processed result:

> _GL_INLINE_HEADER_BEGIN
> # 603 "../lib/unistd.h" 3
> extern int _gl_cxxalias_dummy;
>
> extern int _gl_cxxalias_dummy;
> # 1839 "../lib/unistd.h" 3
> _GL_INLINE_HEADER_END

GCC doesn't like that "_GL_INLINE_HEADER_xxx" stuff.