d-ino.m4 doing a stat() instead of lstat()

[Stephane Chazelas]

Hello,

the problem occured to me when building findutils 4.5.11:

configure:19783: checking for d_ino member in directory struct
configure:19824: gcc -std=gnu99 -o conftest -g -O0 -fstack-protector 
--param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall 
-D_FORTIFY_SOURCE=2 -Wl,-z,relro conftest.c  >&5
configure:19824: $? = 0
configure:19824: ./conftest
configure:19824: $? = 4
configure: program exited with status 4
configure: failed program was:
[...]
| DIR *dp = opendir (".");
|              struct dirent *e;
|              struct stat st;
|              if (! dp)
|                return 1;
|              e = readdir (dp);
|              if (! e)
|                return 2;
|              if (stat (e->d_name, &st) != 0)
|                return 3;
|              if (e->d_ino != st.st_ino)
|                return 4;
|              return 0;


In the current directory, in my case, the first file is a symlink:

~/install/findutils-4.5.11$ ls -fl | head
total 15664
lrwxrwxrwx   1 chazelas chazelas      28 Aug 21 20:53 config.guess -> 
/usr/share/misc/config.guess
drwxr-xr-x  14 chazelas chazelas    4096 Aug 21 21:14 .
-rw-r--r--   1 chazelas chazelas    2142 Nov 17  2012 Makefile.am
[...]

So obviously e->d_ino is not the same as st.st_ino.

I think it should be a lstat() above instead of stat()

Best regards,
Stephane (note that I'm not subscribed to the list)