1 files changed, 38 insertions, 0 deletions
diff --git a/gl/m4/lchown.m4 b/gl/m4/lchown.m4
new file mode 100644
index 0000000..9f9cd42
--- /dev/null
+++ b/gl/m4/lchown.m4
@@ -0,0 +1,38 @@
+# serial 17
+# Determine whether we need the lchown wrapper.
+
+dnl Copyright (C) 1998, 2001, 2003-2007, 2009-2022 Free Software Foundation,
+dnl 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 Jim Meyering.
+dnl Provide lchown on systems that lack it, and work around bugs
+dnl on systems that have it.
+
+AC_DEFUN([gl_FUNC_LCHOWN],
+[
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  AC_REQUIRE([gl_FUNC_CHOWN])
+  AC_CHECK_FUNCS_ONCE([lchmod])
+  AC_CHECK_FUNCS([lchown])
+  if test $ac_cv_func_lchown = no; then
+    HAVE_LCHOWN=0
+  else
+    dnl Trailing slash and ctime bugs in chown also occur in lchown.
+    case "$gl_cv_func_chown_slash_works" in
+      *yes) ;;
+      *)
+        REPLACE_LCHOWN=1
+        ;;
+    esac
+    case "$gl_cv_func_chown_ctime_works" in
+      *yes) ;;
+      *)
+        REPLACE_LCHOWN=1
+        ;;
+    esac
+  fi
+])