diff options
Diffstat (limited to 'lib/same-inode.h')
| -rw-r--r-- | lib/same-inode.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/lib/same-inode.h b/lib/same-inode.h index 7cece6dda5..a08bc4ec0d 100644 --- a/lib/same-inode.h +++ b/lib/same-inode.h @@ -18,6 +18,8 @@ #ifndef SAME_INODE_H # define SAME_INODE_H 1 +# include <sys/types.h> + # ifdef __VMS # define SAME_INODE(a, b) \ ((a).st_ino[0] == (b).st_ino[0] \ @@ -25,9 +27,17 @@ && (a).st_ino[2] == (b).st_ino[2] \ && (a).st_dev == (b).st_dev) # elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ -/* On MinGW, struct stat lacks necessary info, so always return 0. - Callers can use !a.st_ino to deduce that the information is unknown. */ -# define SAME_INODE(a, b) 0 + /* Native Windows. */ +# if _GL_WINDOWS_STAT_INODES + /* stat() and fstat() set st_dev and st_ino to 0 if information about + the inode is not available. */ +# define SAME_INODE(a, b) \ + (!((a).st_ino == 0 && (a).st_dev == 0) \ + && (a).st_ino == (b).st_ino && (a).st_dev == (b).st_dev) +# else + /* stat() and fstat() set st_ino to 0 always. */ +# define SAME_INODE(a, b) 0 +# endif # else # define SAME_INODE(a, b) \ ((a).st_ino == (b).st_ino \ |