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| author | Paul Eggert <eggert@cs.ucla.edu> | 2004-07-25 07:37:55 +0000 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2004-07-25 07:37:55 +0000 |
| commit | b46f08fd590768353b5a8b0c50087d2196676a7f (patch) | |
| tree | 5e12aae57b01dc81b48c7f96b7d2df3eb9d574cd /m4 | |
| parent | 6fb55c3b5a687543f63d320882fa23c42736cea6 (diff) | |
| download | coreutils-b46f08fd590768353b5a8b0c50087d2196676a7f.tar.xz | |
(gl_FUNC_NONREENTRANT_EUIDACCESS): New macro.
(gl_FUNC_EUIDACCESS): Use AC_CHECK_DECLS_ONCE, not AC_CHECK_DECLS.
(gl_PREREQ_EUIDACCESS): Check for eaccess and setregid decls.
Require AC_HEADER_STAT.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/euidaccess.m4 | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/m4/euidaccess.m4 b/m4/euidaccess.m4 index 18ce475b1..4307ae878 100644 --- a/m4/euidaccess.m4 +++ b/m4/euidaccess.m4 @@ -1,17 +1,28 @@ -# euidaccess.m4 serial 2 -dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc. +# euidaccess.m4 serial 3 +dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. dnl This file is free software, distributed under the terms of the GNU dnl General Public License. As a special exception to the GNU General dnl Public License, this file may be distributed as part of a program dnl that contains a configuration script generated by Autoconf, under dnl the same distribution terms as the rest of that program. +AC_DEFUN([gl_FUNC_NONREENTRANT_EUIDACCESS], +[ + AC_REQUIRE([gl_FUNC_EUIDACCESS]) + AC_DEFINE([PREFER_NONREENTRANT_EUIDACCESS], 1, + [Define this if you prefer euidaccess to return the correct result + even if this would make it nonreentrant. Define this only if your + entire application is safe even if the uid or gid might temporarily + change. If your application uses signal handlers or threads it + is probably not safe.]) +]) + AC_DEFUN([gl_FUNC_EUIDACCESS], [ dnl Persuade glibc <unistd.h> to declare euidaccess(). AC_REQUIRE([AC_GNU_SOURCE]) - AC_CHECK_DECLS([euidaccess]) + AC_CHECK_DECLS_ONCE([euidaccess]) AC_REPLACE_FUNCS(euidaccess) if test $ac_cv_func_euidaccess = no; then gl_PREREQ_EUIDACCESS @@ -21,6 +32,8 @@ AC_DEFUN([gl_FUNC_EUIDACCESS], # Prerequisites of lib/euidaccess.c. AC_DEFUN([gl_PREREQ_EUIDACCESS], [ AC_CHECK_HEADERS_ONCE(unistd.h) + AC_CHECK_DECLS_ONCE(eaccess setregid) AC_REQUIRE([AC_FUNC_GETGROUPS]) + AC_REQUIRE([AC_HEADER_STAT]) ]) |