source: trunk/m4/ax_append_link_flags.m4 @ 2724

Last change on this file since 2724 was 2724, checked in by Peter, 7 years ago

set svncopyright:ignore property

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id Date
File size: 2.7 KB
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1# ===========================================================================
2#   http://www.gnu.org/software/autoconf-archive/ax_append_link_flags.html
3# ===========================================================================
4#
5# SYNOPSIS
6#
7#   AX_APPEND_LINK_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS])
8#
9# DESCRIPTION
10#
11#   For every FLAG1, FLAG2 it is checked whether the linker works with the
12#   flag.  If it does, the flag is added FLAGS-VARIABLE
13#
14#   If FLAGS-VARIABLE is not specified, the linker's flags (LDFLAGS) is
15#   used. During the check the flag is always added to the linker's flags.
16#
17#   If EXTRA-FLAGS is defined, it is added to the linker's default flags
18#   when the check is done.  The check is thus made with the flags: "LDFLAGS
19#   EXTRA-FLAGS FLAG".  This can for example be used to force the linker to
20#   issue an error when a bad flag is given.
21#
22#   NOTE: This macro depends on the AX_APPEND_FLAG and AX_CHECK_LINK_FLAG.
23#   Please keep this macro in sync with AX_APPEND_COMPILE_FLAGS.
24#
25# LICENSE
26#
27#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
28#
29#   This program is free software: you can redistribute it and/or modify it
30#   under the terms of the GNU General Public License as published by the
31#   Free Software Foundation, either version 3 of the License, or (at your
32#   option) any later version.
33#
34#   This program is distributed in the hope that it will be useful, but
35#   WITHOUT ANY WARRANTY; without even the implied warranty of
36#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
37#   Public License for more details.
38#
39#   You should have received a copy of the GNU General Public License along
40#   with this program. If not, see <http://www.gnu.org/licenses/>.
41#
42#   As a special exception, the respective Autoconf Macro's copyright owner
43#   gives unlimited permission to copy, distribute and modify the configure
44#   scripts that are the output of Autoconf when processing the Macro. You
45#   need not follow the terms of the GNU General Public License when using
46#   or distributing such scripts, even though portions of the text of the
47#   Macro appear in them. The GNU General Public License (GPL) does govern
48#   all other use of the material that constitutes the Autoconf Macro.
49#
50#   This special exception to the GPL applies to versions of the Autoconf
51#   Macro released by the Autoconf Archive. When you make and distribute a
52#   modified version of the Autoconf Macro, you may extend this special
53#   exception to the GPL to apply to your modified version as well.
54
55#serial 2
56
57AC_DEFUN([AX_APPEND_LINK_FLAGS],
58[for flag in $1; do
59  AX_CHECK_LINK_FLAG([$flag], [AX_APPEND_FLAG([$flag], [m4_default([$2], [LDFLAGS])])], [], [$3])
60done
61])dnl AX_APPEND_LINK_FLAGS
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