- AC_CACHE_CHECK([whether lstat accepts an empty string],
- jm_cv_func_lstat_empty_string_bug,
- [AC_TRY_RUN([
-# include <sys/types.h>
-# include <sys/stat.h>
-
- int
- main ()
- {
- struct stat sbuf;
- exit (lstat ("", &sbuf) ? 1 : 0);
- }
- ],
- jm_cv_func_lstat_empty_string_bug=yes,
- jm_cv_func_lstat_empty_string_bug=no,
- dnl When crosscompiling, assume lstat is broken.
- jm_cv_func_lstat_empty_string_bug=yes)
- ])
- if test $jm_cv_func_lstat_empty_string_bug = yes; then
-
- LIBOBJS="$LIBOBJS lstat.o"
-
- if test $jm_cv_func_lstat_empty_string_bug = yes; then
- if test x = y; then
- # This code is deliberately never run via ./configure.
- # FIXME: this is a hack to make autoheader put the corresponding
- # HAVE_* undef for this symbol in config.h.in. This saves me the
- # trouble of having to maintain the #undef in acconfig.h manually.
- AC_CHECK_FUNCS(LSTAT_EMPTY_STRING_BUG)
- fi
- # Defining it this way (rather than via AC_DEFINE) short-circuits the
- # autoheader check -- autoheader doesn't know it's already been taken
- # care of by the hack above.
- ac_kludge=HAVE_LSTAT_EMPTY_STRING_BUG
- AC_DEFINE_UNQUOTED($ac_kludge)
+ AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
+ dnl If lstat does not exist, the replacement <sys/stat.h> does
+ dnl "#define lstat stat", and lstat.c is a no-op.
+ AC_CHECK_FUNCS_ONCE([lstat])
+ if test $ac_cv_func_lstat = yes; then
+ AC_REQUIRE([AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
+ if test $ac_cv_func_lstat_dereferences_slashed_symlink = no; then
+ dnl Note: AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK does AC_LIBOBJ([lstat]).
+ REPLACE_LSTAT=1