* sys_stat_h.m4 (gl_HEADER_SYS_STAT_H): New file.

diff --git a/m4/ChangeLog b/m4/ChangeLog
index 4f6e493..875d464 100644 (file)
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,7 @@
+2006-06-29  Eric Blake  <ebb9@byu.net>
+
+       * sys_stat_h.m4 (gl_HEADER_SYS_STAT_H): New file.
+
 2006-06-29  Derek R. Price  <derek@ximbiot.com>
 
        * strftime.m4: Don't call AC_FUNC_STRFTIME.

diff --git a/m4/sys_stat_h.m4 b/m4/sys_stat_h.m4
new file mode 100644 (file)
index 0000000..536790c
--- /dev/null
+++ b/m4/sys_stat_h.m4
@@ -0,0 +1,29 @@
+# sys_stat_h.m4 serial 1   -*- Autoconf -*-
+dnl Copyright (C) 2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Eric Blake.
+dnl Test whether <sys/stat.h> contains lstat and mkdir or must be substituted.
+
+AC_DEFUN([gl_HEADER_SYS_STAT_H],
+[
+  dnl Check for lstat.  Systems that lack it (mingw) also lack symlinks, so
+  dnl stat is a good replacement.
+  AC_CHECK_FUNCS_ONCE([lstat])
+
+  dnl Check for mkdir.  Mingw has _mkdir(name) in the nonstandard <io.h>
+  dnl instead.
+  AC_CHECK_DECLS([mkdir], [], [], [#include <sys/stat.h>])
+
+  SYS_STAT_H=
+  if test $ac_cv_func_lstat:$ac_cv_have_decl_mkdir != yes:yes ; then
+    gl_FULL_HEADER_PATH([sys/stat.h])
+    FULL_PATH_SYS_STAT_H='<'$gl_cv_full_path_sys_stat_h'>'
+    AC_CHECK_HEADERS([io.h])
+    AC_SUBST([FULL_PATH_SYS_STAT_H])
+    SYS_STAT_H='sys/stat.h'
+  fi
+  AC_SUBST([SYS_STAT_H])
+]) # gl_HEADER_SYS_STAT_H