maint: remove useless inclusions of "alloca.h"

[gnulib.git] / m4 / lstat.m4

diff --git a/m4/lstat.m4 b/m4/lstat.m4
index c2d8f45..5dbd16e 100644 (file)
--- a/m4/lstat.m4
+++ b/m4/lstat.m4
@@ -1,7 +1,6 @@
-#serial 17
+# serial 20
 
-# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008
-# Free Software Foundation, Inc.
+# Copyright (C) 1997-2001, 2003-2010 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -13,15 +12,17 @@ AC_DEFUN([gl_FUNC_LSTAT],
 [
   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 does not need to be compiled.
+  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_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
-    dnl Note: AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK does AC_LIBOBJ(lstat).
+    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
     fi
     # Prerequisites of lib/lstat.c.
     AC_REQUIRE([AC_C_INLINE])
+  else
+    HAVE_LSTAT=0
   fi
 ])