1# generated automatically by aclocal 1.11.3 -*- Autoconf -*-
2
3# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4# 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation,
5# Inc.
6# This file is free software; the Free Software Foundation
7# gives unlimited permission to copy and/or distribute it,
8# with or without modifications, as long as this notice is preserved.
9
10# This program is distributed in the hope that it will be useful,
11# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
12# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
13# PARTICULAR PURPOSE.
14
15# ===========================================================================
16#      http://www.gnu.org/software/autoconf-archive/ax_append_flag.html
17# ===========================================================================
18#
19# SYNOPSIS
20#
21#   AX_APPEND_FLAG(FLAG, [FLAGS-VARIABLE])
22#
23# DESCRIPTION
24#
25#   FLAG is appended to the FLAGS-VARIABLE shell variable, with a space
26#   added in between.
27#
28#   If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
29#   CFLAGS) is used.  FLAGS-VARIABLE is not changed if it already contains
30#   FLAG.  If FLAGS-VARIABLE is unset in the shell, it is set to exactly
31#   FLAG.
32#
33#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION.
34#
35# LICENSE
36#
37#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
38#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
39#
40#   This program is free software: you can redistribute it and/or modify it
41#   under the terms of the GNU General Public License as published by the
42#   Free Software Foundation, either version 3 of the License, or (at your
43#   option) any later version.
44#
45#   This program is distributed in the hope that it will be useful, but
46#   WITHOUT ANY WARRANTY; without even the implied warranty of
47#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
48#   Public License for more details.
49#
50#   You should have received a copy of the GNU General Public License along
51#   with this program. If not, see <http://www.gnu.org/licenses/>.
52#
53#   As a special exception, the respective Autoconf Macro's copyright owner
54#   gives unlimited permission to copy, distribute and modify the configure
55#   scripts that are the output of Autoconf when processing the Macro. You
56#   need not follow the terms of the GNU General Public License when using
57#   or distributing such scripts, even though portions of the text of the
58#   Macro appear in them. The GNU General Public License (GPL) does govern
59#   all other use of the material that constitutes the Autoconf Macro.
60#
61#   This special exception to the GPL applies to versions of the Autoconf
62#   Macro released by the Autoconf Archive. When you make and distribute a
63#   modified version of the Autoconf Macro, you may extend this special
64#   exception to the GPL to apply to your modified version as well.
65
66#serial 2
67
68AC_DEFUN([AX_APPEND_FLAG],
69[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX
70AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])dnl
71AS_VAR_SET_IF(FLAGS,
72  [case " AS_VAR_GET(FLAGS) " in
73    *" $1 "*)
74      AC_RUN_LOG([: FLAGS already contains $1])
75      ;;
76    *)
77      AC_RUN_LOG([: FLAGS="$FLAGS $1"])
78      AS_VAR_SET(FLAGS, ["AS_VAR_GET(FLAGS) $1"])
79      ;;
80   esac],
81  [AS_VAR_SET(FLAGS,["$1"])])
82AS_VAR_POPDEF([FLAGS])dnl
83])dnl AX_APPEND_FLAG
84
85# ===========================================================================
86#    http://www.gnu.org/software/autoconf-archive/ax_cflags_warn_all.html
87# ===========================================================================
88#
89# SYNOPSIS
90#
91#   AX_CFLAGS_WARN_ALL   [(shellvar [,default, [A/NA]])]
92#   AX_CXXFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])]
93#   AX_FCFLAGS_WARN_ALL  [(shellvar [,default, [A/NA]])]
94#
95# DESCRIPTION
96#
97#   Try to find a compiler option that enables most reasonable warnings.
98#
99#   For the GNU compiler it will be -Wall (and -ansi -pedantic) The result
100#   is added to the shellvar being CFLAGS, CXXFLAGS, or FCFLAGS by default.
101#
102#   Currently this macro knows about the GCC, Solaris, Digital Unix, AIX,
103#   HP-UX, IRIX, NEC SX-5 (Super-UX 10), Cray J90 (Unicos 10.0.0.8), and
104#   Intel compilers.  For a given compiler, the Fortran flags are much more
105#   experimental than their C equivalents.
106#
107#    - $1 shell-variable-to-add-to : CFLAGS, CXXFLAGS, or FCFLAGS
108#    - $2 add-value-if-not-found : nothing
109#    - $3 action-if-found : add value to shellvariable
110#    - $4 action-if-not-found : nothing
111#
112#   NOTE: These macros depend on AX_APPEND_FLAG.
113#
114# LICENSE
115#
116#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
117#   Copyright (c) 2010 Rhys Ulerich <rhys.ulerich@gmail.com>
118#
119#   This program is free software; you can redistribute it and/or modify it
120#   under the terms of the GNU General Public License as published by the
121#   Free Software Foundation; either version 3 of the License, or (at your
122#   option) any later version.
123#
124#   This program is distributed in the hope that it will be useful, but
125#   WITHOUT ANY WARRANTY; without even the implied warranty of
126#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
127#   Public License for more details.
128#
129#   You should have received a copy of the GNU General Public License along
130#   with this program. If not, see <http://www.gnu.org/licenses/>.
131#
132#   As a special exception, the respective Autoconf Macro's copyright owner
133#   gives unlimited permission to copy, distribute and modify the configure
134#   scripts that are the output of Autoconf when processing the Macro. You
135#   need not follow the terms of the GNU General Public License when using
136#   or distributing such scripts, even though portions of the text of the
137#   Macro appear in them. The GNU General Public License (GPL) does govern
138#   all other use of the material that constitutes the Autoconf Macro.
139#
140#   This special exception to the GPL applies to versions of the Autoconf
141#   Macro released by the Autoconf Archive. When you make and distribute a
142#   modified version of the Autoconf Macro, you may extend this special
143#   exception to the GPL to apply to your modified version as well.
144
145#serial 13
146
147AC_DEFUN([AX_FLAGS_WARN_ALL],[dnl
148AS_VAR_PUSHDEF([FLAGS],[_AC_LANG_PREFIX[]FLAGS])dnl
149AS_VAR_PUSHDEF([VAR],[ac_cv_[]_AC_LANG_ABBREV[]flags_warn_all])dnl
150AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings],
151VAR,[VAR="no, unknown"
152ac_save_[]FLAGS="$[]FLAGS"
153for ac_arg dnl
154in "-warn all  % -warn all"   dnl Intel
155   "-pedantic  % -Wall"       dnl GCC
156   "-xstrconst % -v"          dnl Solaris C
157   "-std1      % -verbose -w0 -warnprotos" dnl Digital Unix
158   "-qlanglvl=ansi % -qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd" dnl AIX
159   "-ansi -ansiE % -fullwarn" dnl IRIX
160   "+ESlit     % +w1"         dnl HP-UX C
161   "-Xc        % -pvctl[,]fullmsg" dnl NEC SX-5 (Super-UX 10)
162   "-h conform % -h msglevel 2" dnl Cray C (Unicos)
163   #
164do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
165   AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
166                     [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break])
167done
168FLAGS="$ac_save_[]FLAGS"
169])
170AS_VAR_POPDEF([FLAGS])dnl
171case ".$VAR" in
172     .ok|.ok,*) m4_ifvaln($3,$3) ;;
173   .|.no|.no,*) m4_default($4,[m4_ifval($2,[AX_APPEND_FLAG([$2], [$1])])]) ;;
174   *) m4_default($3,[AX_APPEND_FLAG([$VAR], [$1])]) ;;
175esac
176AS_VAR_POPDEF([VAR])dnl
177])dnl AX_FLAGS_WARN_ALL
178dnl  implementation tactics:
179dnl   the for-argument contains a list of options. The first part of
180dnl   these does only exist to detect the compiler - usually it is
181dnl   a global option to enable -ansi or -extrawarnings. All other
182dnl   compilers will fail about it. That was needed since a lot of
183dnl   compilers will give false positives for some option-syntax
184dnl   like -Woption or -Xoption as they think of it is a pass-through
185dnl   to later compile stages or something. The "%" is used as a
186dnl   delimiter. A non-option comment can be given after "%%" marks
187dnl   which will be shown but not added to the respective C/CXXFLAGS.
188
189AC_DEFUN([AX_CFLAGS_WARN_ALL],[dnl
190AC_LANG_PUSH([C])
191AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
192AC_LANG_POP([C])
193])
194
195AC_DEFUN([AX_CXXFLAGS_WARN_ALL],[dnl
196AC_LANG_PUSH([C++])
197AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
198AC_LANG_POP([C++])
199])
200
201AC_DEFUN([AX_FCFLAGS_WARN_ALL],[dnl
202AC_LANG_PUSH([Fortran])
203AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
204AC_LANG_POP([Fortran])
205])
206
207