/[svn]/ircd-hybrid/trunk/m4/ax_append_compile_flags.m4
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Annotation of /ircd-hybrid/trunk/m4/ax_append_compile_flags.m4

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Revision 3838 - (hide annotations)
Thu Jun 5 00:33:36 2014 UTC (8 years, 7 months ago) by michael
File size: 2905 byte(s)
- Update macros in m4/

1 michael 2491 # ===========================================================================
2     # http://www.gnu.org/software/autoconf-archive/ax_append_compile_flags.html
3     # ===========================================================================
4     #
5     # SYNOPSIS
6     #
7     # AX_APPEND_COMPILE_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS])
8     #
9     # DESCRIPTION
10     #
11     # For every FLAG1, FLAG2 it is checked whether the compiler works with the
12     # flag. If it does, the flag is added FLAGS-VARIABLE
13     #
14     # If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
15     # CFLAGS) is used. During the check the flag is always added to the
16     # current language's flags.
17     #
18     # If EXTRA-FLAGS is defined, it is added to the current language's default
19     # flags (e.g. CFLAGS) when the check is done. The check is thus made with
20     # the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to
21     # force the compiler to issue an error when a bad flag is given.
22     #
23     # NOTE: This macro depends on the AX_APPEND_FLAG and
24     # AX_CHECK_COMPILE_FLAG. Please keep this macro in sync with
25     # AX_APPEND_LINK_FLAGS.
26     #
27     # LICENSE
28     #
29     # Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
30     #
31     # This program is free software: you can redistribute it and/or modify it
32     # under the terms of the GNU General Public License as published by the
33     # Free Software Foundation, either version 3 of the License, or (at your
34     # option) any later version.
35     #
36     # This program is distributed in the hope that it will be useful, but
37     # WITHOUT ANY WARRANTY; without even the implied warranty of
38     # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
39     # Public License for more details.
40     #
41     # You should have received a copy of the GNU General Public License along
42     # with this program. If not, see <http://www.gnu.org/licenses/>.
43     #
44     # As a special exception, the respective Autoconf Macro's copyright owner
45     # gives unlimited permission to copy, distribute and modify the configure
46     # scripts that are the output of Autoconf when processing the Macro. You
47     # need not follow the terms of the GNU General Public License when using
48     # or distributing such scripts, even though portions of the text of the
49     # Macro appear in them. The GNU General Public License (GPL) does govern
50     # all other use of the material that constitutes the Autoconf Macro.
51     #
52     # This special exception to the GPL applies to versions of the Autoconf
53     # Macro released by the Autoconf Archive. When you make and distribute a
54     # modified version of the Autoconf Macro, you may extend this special
55     # exception to the GPL to apply to your modified version as well.
56    
57 michael 3838 #serial 4
58 michael 2491
59     AC_DEFUN([AX_APPEND_COMPILE_FLAGS],
60 michael 3838 [AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
61     AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
62 michael 2491 for flag in $1; do
63     AX_CHECK_COMPILE_FLAG([$flag], [AX_APPEND_FLAG([$flag], [$2])], [], [$3])
64     done
65     ])dnl AX_APPEND_COMPILE_FLAGS

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