diff options
Diffstat (limited to 'gl/unistd.in.h')
| -rw-r--r-- | gl/unistd.in.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/gl/unistd.in.h b/gl/unistd.in.h index fa8d84a..09e9039 100644 --- a/gl/unistd.in.h +++ b/gl/unistd.in.h @@ -150,10 +150,13 @@ extern int close (int); #if @GNULIB_DUP2@ -# if !@HAVE_DUP2@ +# if @REPLACE_DUP2@ +# define dup2 rpl_dup2 +# endif +# if !@HAVE_DUP2@ || @REPLACE_DUP2@ /* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if NEWFD = OLDFD, otherwise close NEWFD first if it is open. - Return 0 if successful, otherwise -1 and errno set. + Return newfd if successful, otherwise -1 and errno set. See the POSIX:2001 specification <http://www.opengroup.org/susv3xsh/dup2.html>. */ extern int dup2 (int oldfd, int newfd); @@ -214,7 +217,11 @@ extern int fchdir (int /*fd*/); # define dup rpl_dup extern int dup (int); -# define dup2 rpl_dup2 + +# if @REPLACE_DUP2@ +# undef dup2 +# endif +# define dup2 rpl_dup2_fchdir extern int dup2 (int, int); # endif |