Re: [PATCH] Remove unused check in configure.ac



06.05.2017, 19:52, "Yury V. Zaytsev" <yury shurup com>:
On Wed, 19 Apr 2017, Andrey Gursky wrote:

AC_STRUCT_ST_BLOCKS is a leftover from cleanup in 0ba019a90b3798abae32ba261e72b737dc945615

I don't understand why you're saying that this macro is unused. It defines

     HAVE_STRUCT_STAT_ST_BLOCKS

if struct `stat` contains an `st_blocks` member. This define is currently
used in branches all over our codebase.

https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Particular-Structures.html#Particular-Structures

Yes, you're right. Strange, what is the difference between the art of a structure member:
- st_blocks:  AC_STRUCT_ST_BLOCKS (not replaced)
- st_blksize: AC_STRUCT_ST_BLKSIZE (replaced) --> AC_CHECK_MEMBERS([struct stat.st_blksize]) so that they should be checked in a different way. In the man page they are mentioned together: "Use of the st_blocks and st_blksize fields may be less portable. (They were introduced in BSD. The interpretation differs between systems, and possibly on a single system when NFS mounts are involved.)"

 ---
 configure.ac | 1 -
 1 file changed, 1 deletion(-)

 diff --git a/configure.ac b/configure.ac
 index 387110daf..ac81404f5 100644
 --- a/configure.ac
 +++ b/configure.ac
 @@ -180,7 +180,6 @@ gl_PROMOTED_TYPE_MODE_T
 AC_TYPE_PID_T
 AC_TYPE_UID_T

 -AC_STRUCT_ST_BLOCKS
AC_CHECK_MEMBERS([struct stat.st_blksize, struct stat.st_rdev, struct stat.st_mtim])
 gl_STAT_SIZE

 --
 2.12.2+git20170411
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--
Sincerely yours,
Yury V. Zaytsev

Regards,
Andrey


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