- if test "$as_ln_s" = "ln -s" && ln -s conftest.file conftest.sym; then
- AC_RUN_IFELSE(
- [AC_LANG_PROGRAM(
- [AC_INCLUDES_DEFAULT],
- [[struct stat sbuf;
- /* Linux will dereference the symlink and fail, as required by
- POSIX. That is better in the sense that it means we will not
- have to compile and use the lstat wrapper. */
- return lstat ("conftest.sym/", &sbuf) == 0;
- ]])],
- [ac_cv_func_lstat_dereferences_slashed_symlink=yes],
- [ac_cv_func_lstat_dereferences_slashed_symlink=no],
- [# When cross-compiling, be pessimistic so we will end up using the
- # replacement version of lstat that checks for trailing slashes and
- # calls lstat a second time when necessary.
- ac_cv_func_lstat_dereferences_slashed_symlink=no
- ])
- else
- # If the 'ln -s' command failed, then we probably don't even
- # have an lstat function.
- ac_cv_func_lstat_dereferences_slashed_symlink=no
- fi
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [AC_INCLUDES_DEFAULT],
+ [[struct stat sbuf;
+ if (symlink ("conftest.file", "conftest.sym") != 0)
+ return 1;
+ /* Linux will dereference the symlink and fail, as required by
+ POSIX. That is better in the sense that it means we will not
+ have to compile and use the lstat wrapper. */
+ return lstat ("conftest.sym/", &sbuf) == 0;
+ ]])],
+ [gl_cv_func_lstat_dereferences_slashed_symlink=yes],
+ [gl_cv_func_lstat_dereferences_slashed_symlink=no],
+ [case "$host_os" in
+ *-gnu*)
+ # Guess yes on glibc systems.
+ gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;;
+ *)
+ # If we don't know, assume the worst.
+ gl_cv_func_lstat_dereferences_slashed_symlink="guessing no" ;;
+ esac
+ ])