diff options
Diffstat (limited to 'm4/lchown.m4')
| -rw-r--r-- | m4/lchown.m4 | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/m4/lchown.m4 b/m4/lchown.m4 index a7b3572..fb5aed1 100644 --- a/m4/lchown.m4 +++ b/m4/lchown.m4 @@ -1,19 +1,38 @@ -#serial 11 +# serial 17 +# Determine whether we need the lchown wrapper. -dnl Copyright (C) 1998, 2001, 2003, 2004, 2005, 2006 Free Software -dnl Foundation, Inc. +dnl Copyright (C) 1998, 2001, 2003-2007, 2009-2016 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. +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([AC_TYPE_UID_T]) + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_CHOWN]) - AC_CHECK_DECLS_ONCE([lchown]) - AC_REPLACE_FUNCS(lchown) + 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 ]) |