An independent .m4 file for each module.

[gnulib.git] / m4 / lstat.m4

diff --git a/m4/lstat.m4 b/m4/lstat.m4
index 8ef73b3..1544027 100644 (file)
--- a/m4/lstat.m4
+++ b/m4/lstat.m4
@@ -1,4 +1,4 @@
-#serial 7
+#serial 8
 
 dnl From Jim Meyering.
 dnl Determine whether lstat has the bug that it succeeds when given the
@@ -11,30 +11,17 @@ dnl
 
 AC_DEFUN([jm_FUNC_LSTAT],
 [
- AC_REQUIRE([AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
- 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
-    AC_LIBOBJ(lstat)
-    AC_DEFINE(HAVE_LSTAT_EMPTY_STRING_BUG, 1,
-[Define if lstat has the bug that it succeeds when given the zero-length
-   file name argument.  The lstat from SunOS4.1.4 and the Hurd as of 1998-11-01)
-   do this. ])
+  AC_FUNC_LSTAT
+  dnl Note: AC_FUNC_LSTAT does AC_LIBOBJ(lstat).
+  if test $ac_cv_func_lstat_empty_string_bug = yes; then
+    gl_PREREQ_LSTAT
   fi
 ])
+
+# Prerequisites of lib/lstat.c.
+AC_DEFUN([gl_PREREQ_LSTAT],
+[
+  AC_REQUIRE([AC_HEADER_STAT])
+  AC_CHECK_HEADERS_ONCE(stdlib.h)
+  AC_CHECK_DECLS_ONCE(free)
+])