- jm_cv_struct_dirent_d_ino,
- [AC_TRY_LINK(dnl
- [
-#include <sys/types.h>
-#ifdef HAVE_DIRENT_H
-# include <dirent.h>
-#else /* not HAVE_DIRENT_H */
-# define dirent direct
-# ifdef HAVE_SYS_NDIR_H
-# include <sys/ndir.h>
-# endif /* HAVE_SYS_NDIR_H */
-# ifdef HAVE_SYS_DIR_H
-# include <sys/dir.h>
-# endif /* HAVE_SYS_DIR_H */
-# ifdef HAVE_NDIR_H
-# include <ndir.h>
-# endif /* HAVE_NDIR_H */
-#endif /* HAVE_DIRENT_H */
- ],
- [struct dirent dp; dp.d_ino = 0;],
-
- jm_cv_struct_dirent_d_ino=yes,
- jm_cv_struct_dirent_d_ino=no)
- ]
- )
- if test $jm_cv_struct_dirent_d_ino = yes; then
- AC_DEFINE(D_INO_IN_DIRENT, 1,
- [Define if there is a member named d_ino in the struct describing
- directory headers.])
- fi
+ gl_cv_struct_dirent_d_ino,
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <sys/types.h>
+ #include <sys/stat.h>
+ #include <dirent.h>
+ ]],
+ [[DIR *dp = opendir (".");
+ struct dirent *e;
+ struct stat st;
+ if (! dp)
+ return 1;
+ e = readdir (dp);
+ if (! e)
+ return 2;
+ if (stat (e->d_name, &st) != 0)
+ return 3;
+ if (e->d_ino != st.st_ino)
+ return 4;
+ return 0;
+ ]])],
+ [gl_cv_struct_dirent_d_ino=yes],
+ [gl_cv_struct_dirent_d_ino=no],
+ [case "$host_os" in
+ # Guess yes on glibc systems with Linux kernel.
+ linux*-gnu*) gl_cv_struct_dirent_d_ino="guessing yes" ;;
+ # If we don't know, assume the worst.
+ *) gl_cv_struct_dirent_d_ino="guessing no" ;;
+ esac
+ ])])
+ case "$gl_cv_struct_dirent_d_ino" in
+ *yes)
+ AC_DEFINE([D_INO_IN_DIRENT], [1],
+ [Define if struct dirent has a member d_ino that actually works.])
+ ;;
+ esac