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

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

1 # ===========================================================================
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 #serial 4
58
59 AC_DEFUN([AX_APPEND_COMPILE_FLAGS],
60 [AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
61 AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
62 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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