X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=m4%2Fchown.m4;fp=m4%2Fchown.m4;h=0000000000000000000000000000000000000000;hb=dc84183747ce1703eb99685b5dbde1f65a143c06;hp=0c32fa39ff623c068bd5ecb3d5d1927c0acbf12d;hpb=a2016c1de6e4884f6c8ed5cc498f3bf821c25ca4;p=debian%2Fgzip diff --git a/m4/chown.m4 b/m4/chown.m4 deleted file mode 100644 index 0c32fa3..0000000 --- a/m4/chown.m4 +++ /dev/null @@ -1,139 +0,0 @@ -# serial 22 -# Determine whether we need the chown wrapper. - -dnl Copyright (C) 1997-2001, 2003-2005, 2007, 2009-2010 Free Software -dnl 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. - -# chown should accept arguments of -1 for uid and gid, and it should -# dereference symlinks. If it doesn't, arrange to use the replacement -# function. - -# From Jim Meyering. - -AC_DEFUN_ONCE([gl_FUNC_CHOWN], -[ - AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) - AC_REQUIRE([AC_TYPE_UID_T]) - AC_REQUIRE([AC_FUNC_CHOWN]) - AC_REQUIRE([gl_FUNC_CHOWN_FOLLOWS_SYMLINK]) - AC_CHECK_FUNCS_ONCE([chown fchown]) - - dnl mingw lacks chown altogether. - if test $ac_cv_func_chown = no; then - HAVE_CHOWN=0 - AC_LIBOBJ([chown]) - else - dnl Some old systems treated chown like lchown. - if test $gl_cv_func_chown_follows_symlink = no; then - REPLACE_CHOWN=1 - AC_LIBOBJ([chown]) - fi - - dnl Some old systems tried to use uid/gid -1 literally. - if test $ac_cv_func_chown_works = no; then - AC_DEFINE([CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE], [1], - [Define if chown is not POSIX compliant regarding IDs of -1.]) - REPLACE_CHOWN=1 - AC_LIBOBJ([chown]) - fi - - dnl Solaris 9 ignores trailing slash. - dnl FreeBSD 7.2 mishandles trailing slash on symlinks. - AC_CACHE_CHECK([whether chown honors trailing slash], - [gl_cv_func_chown_slash_works], - [touch conftest.file && rm -f conftest.link - AC_RUN_IFELSE([AC_LANG_PROGRAM([[ -#include -#include -#include -]], [[ if (symlink ("conftest.file", "conftest.link")) return 1; - if (chown ("conftest.link/", getuid (), getgid ()) == 0) return 2; - ]])], - [gl_cv_func_chown_slash_works=yes], - [gl_cv_func_chown_slash_works=no], - [gl_cv_func_chown_slash_works="guessing no"]) - rm -f conftest.link conftest.file]) - if test "$gl_cv_func_chown_slash_works" != yes; then - AC_DEFINE([CHOWN_TRAILING_SLASH_BUG], [1], - [Define to 1 if chown mishandles trailing slash.]) - REPLACE_CHOWN=1 - AC_LIBOBJ([chown]) - fi - - dnl OpenBSD fails to update ctime if ownership does not change. - AC_CACHE_CHECK([whether chown always updates ctime], - [gl_cv_func_chown_ctime_works], - [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ -#include -#include -#include -#include -#include -]], [[ struct stat st1, st2; - if (close (creat ("conftest.file", 0600))) return 1; - if (stat ("conftest.file", &st1)) return 2; - sleep (1); - if (chown ("conftest.file", st1.st_uid, st1.st_gid)) return 3; - if (stat ("conftest.file", &st2)) return 4; - if (st2.st_ctime <= st1.st_ctime) return 5; - ]])], - [gl_cv_func_chown_ctime_works=yes], - [gl_cv_func_chown_ctime_works=no], - [gl_cv_func_chown_ctime_works="guessing no"]) - rm -f conftest.file]) - if test "$gl_cv_func_chown_ctime_works" != yes; then - AC_DEFINE([CHOWN_CHANGE_TIME_BUG], [1], [Define to 1 if chown fails - to change ctime when at least one argument was not -1.]) - REPLACE_CHOWN=1 - AC_LIBOBJ([chown]) - fi - - if test $REPLACE_CHOWN = 1 && test $ac_cv_func_fchown = no; then - AC_LIBOBJ([fchown-stub]) - fi - fi -]) - -# Determine whether chown follows symlinks (it should). -AC_DEFUN_ONCE([gl_FUNC_CHOWN_FOLLOWS_SYMLINK], -[ - AC_CACHE_CHECK( - [whether chown dereferences symlinks], - [gl_cv_func_chown_follows_symlink], - [ - AC_RUN_IFELSE([AC_LANG_SOURCE([[ -#include -#include -#include - - int - main () - { - char const *dangling_symlink = "conftest.dangle"; - - unlink (dangling_symlink); - if (symlink ("conftest.no-such", dangling_symlink)) - abort (); - - /* Exit successfully on a conforming system, - i.e., where chown must fail with ENOENT. */ - exit ( ! (chown (dangling_symlink, getuid (), getgid ()) != 0 - && errno == ENOENT)); - } - ]])], - [gl_cv_func_chown_follows_symlink=yes], - [gl_cv_func_chown_follows_symlink=no], - [gl_cv_func_chown_follows_symlink=yes] - ) - ] - ) - - if test $gl_cv_func_chown_follows_symlink = no; then - AC_DEFINE([CHOWN_MODIFIES_SYMLINK], [1], - [Define if chown modifies symlinks.]) - fi -])