Re: dirfd on AIX 7.1BETA

[Jarno Rajahalme]

On Jul 31, 2010, at 12:52 , ext Bruno Haible wrote:

> Rainer Tammer wrote:
>> maybe this is only a glich in the AIX7BETA ?
> 
> Maybe. But the commit that I did does not harm; it increases gnulib's
> robustness also for other platforms.
> 
> Bruno
> 


Bruno,

Apparently this was not the case on OSX (my case) or FreeBSD (see 
http://savannah.gnu.org/bugs/?30721).

I get a compiler error:

In file included from sysdir.h:34:0,
                 from dir-ops.cc:34:
../libgnu/dirent.h:380:1: error: '::dirfd' has not been declared

This appeared since the changes to the lib/dirent.in.h

OSX declares dirfd as a macro:

config.log:

configure:15560: checking whether dirfd is declared without a macro
conftest.c:184:10: error: 'dirfd' undeclared (first use in this function)
...
configure:15621: checking whether dirfd is declared
configure:15638: checking whether dirfd is a macro
| #define HAVE_DECL_DIRFD 1
| #define GNULIB_TEST_DIRFD 1
...
ac_cv_func_dirfd=no
ac_cv_have_decl_dirfd=yes
gl_cv_func_dirfd_macro=yes
gl_cv_have_raw_decl_dirfd=no
GNULIB_DIRFD='1'
HAVE_DECL_DIRFD='1'
REPLACE_DIRFD='0'
...


This works for me for now:

*** libgnu/dirent.h~    Fri Sep  3 20:21:32 2010
--- libgnu/dirent.h     Fri Sep  3 20:23:02 2010
***************
*** 377,385 ****
--- 377,389 ----
  #  if !(1 || defined dirfd)
  _GL_FUNCDECL_SYS (dirfd, int, (DIR *) _GL_ARG_NONNULL ((1)));
  #  endif
+ #if !defined(dirfd)
  _GL_CXXALIAS_SYS (dirfd, int, (DIR *));
+ #endif
  # endif
+ #if !defined(dirfd)
  _GL_CXXALIASWARN (dirfd);
+ #endif
  #elif defined GNULIB_POSIXCHECK
  # undef dirfd
  # if HAVE_RAW_DECL_DIRFD


Maybe the CXX macros don't like a macro as dirfd???

Regards,

  Jarno