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-rw-r--r--gl/m4/lchown.m438
1 files changed, 38 insertions, 0 deletions
diff --git a/gl/m4/lchown.m4 b/gl/m4/lchown.m4
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+++ b/gl/m4/lchown.m4
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+# 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
+])