1dnl The copyright in this software is being made available under the BSD License,
2dnl included below. This software may be subject to other third party and
3dnl contributor rights, including patent rights, and no such rights are granted
4dnl under this license.
5dnl
6dnl Copyright (c) Intel Corporation
7dnl
8dnl All rights reserved.
9dnl
10dnl BSD License
11dnl
12dnl Redistribution and use in source and binary forms, with or without modification,
13dnl are permitted provided that the following conditions are met:
14dnl
15dnl Redistributions of source code must retain the above copyright notice, this list
16dnl of conditions and the following disclaimer.
17dnl
18dnl Redistributions in binary form must reproduce the above copyright notice, this
19dnl list of conditions and the following disclaimer in the documentation and/or
20dnl other materials provided with the distribution.
21dnl
22dnl THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS""
23dnl AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24dnl IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25dnl DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
26dnl ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27dnl (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28dnl LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
29dnl ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30dnl (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31dnl SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32
33dnl ADD_COMPILER_FLAG:
34dnl   A macro to add a CFLAG to the EXTRA_CFLAGS variable. This macro will
35dnl   check to be sure the compiler supprts the flag. Flags can be made
36dnl   mandatory (configure will fail).
37dnl $1: C compiler flag to add to EXTRA_CFLAGS.
38dnl $2: Set to "required" to cause configure failure if flag not supported..
39AC_DEFUN([ADD_COMPILER_FLAG],[
40    AX_CHECK_COMPILE_FLAG([$1],[
41        EXTRA_CFLAGS="$EXTRA_CFLAGS $1"
42        AC_SUBST([EXTRA_CFLAGS])],[
43        AS_IF([test x$2 != xrequired],[
44            AC_MSG_WARN([Optional CFLAG "$1" not supported by your compiler, continuing.])],[
45            AC_MSG_ERROR([Required CFLAG "$1" not supported by your compiler, aborting.])]
46        )],[
47        -Wall -Werror]
48    )]
49)
50dnl ADD_PREPROC_FLAG:
51dnl   Add the provided preprocessor flag to the EXTRA_CFLAGS variable. This
52dnl   macro will check to be sure the preprocessor supports the flag.
53dnl   The flag can be made mandatory by provideing the string 'required' as
54dnl   the second parameter.
55dnl $1: Preprocessor flag to add to EXTRA_CFLAGS.
56dnl $2: Set to "required" t ocause configure failure if preprocesor flag
57dnl     is not supported.
58AC_DEFUN([ADD_PREPROC_FLAG],[
59    AX_CHECK_PREPROC_FLAG([$1],[
60        EXTRA_CFLAGS="$EXTRA_CFLAGS $1"
61        AC_SUBST([EXTRA_CFLAGS])],[
62        AS_IF([test x$2 != xrequired],[
63            AC_MSG_WARN([Optional preprocessor flag "$1" not supported by your compiler, continuing.])],[
64            AC_MSG_ERROR([Required preprocessor flag "$1" not supported by your compiler, aborting.])]
65        )],[
66        -Wall -Werror]
67    )]
68)
69dnl ADD_LINK_FLAG:
70dnl   A macro to add a LDLAG to the EXTRA_LDFLAGS variable. This macro will
71dnl   check to be sure the linker supprts the flag. Flags can be made
72dnl   mandatory (configure will fail).
73dnl $1: linker flag to add to EXTRA_LDFLAGS.
74dnl $2: Set to "required" to cause configure failure if flag not supported.
75AC_DEFUN([ADD_LINK_FLAG],[
76    AX_CHECK_LINK_FLAG([$1],[
77        EXTRA_LDFLAGS="$EXTRA_LDFLAGS $1"
78        AC_SUBST([EXTRA_LDFLAGS])],[
79        AS_IF([test x$2 != xrequired],[
80            AC_MSG_WARN([Optional LDFLAG "$1" not supported by your linker, continuing.])],[
81            AC_MSG_ERROR([Required LDFLAG "$1" not supported by your linker, aborting.])]
82        )]
83    )]
84)
85