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[m6w6/libmemcached] / m4 / ax_compiler_vendor.m4
1 # ===========================================================================
2 # http://www.gnu.org/software/autoconf-archive/ax_compiler_vendor.html
3 # ===========================================================================
4 #
5 # SYNOPSIS
6 #
7 # AX_COMPILER_VENDOR
8 #
9 # DESCRIPTION
10 #
11 # Determine the vendor of the C/C++ compiler, e.g., gnu, intel, ibm, sun,
12 # hp, borland, comeau, dec, cray, kai, lcc, metrowerks, sgi, microsoft,
13 # watcom, etc. The vendor is returned in the cache variable
14 # $ax_cv_c_compiler_vendor for C and $ax_cv_cxx_compiler_vendor for C++.
15 #
16 # LICENSE
17 #
18 # Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
19 # Copyright (c) 2008 Matteo Frigo
20 #
21 # This program is free software: you can redistribute it and/or modify it
22 # under the terms of the GNU General Public License as published by the
23 # Free Software Foundation, either version 3 of the License, or (at your
24 # option) any later version.
25 #
26 # This program is distributed in the hope that it will be useful, but
27 # WITHOUT ANY WARRANTY; without even the implied warranty of
28 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
29 # Public License for more details.
30 #
31 # You should have received a copy of the GNU General Public License along
32 # with this program. If not, see <http://www.gnu.org/licenses/>.
33 #
34 # As a special exception, the respective Autoconf Macro's copyright owner
35 # gives unlimited permission to copy, distribute and modify the configure
36 # scripts that are the output of Autoconf when processing the Macro. You
37 # need not follow the terms of the GNU General Public License when using
38 # or distributing such scripts, even though portions of the text of the
39 # Macro appear in them. The GNU General Public License (GPL) does govern
40 # all other use of the material that constitutes the Autoconf Macro.
41 #
42 # This special exception to the GPL applies to versions of the Autoconf
43 # Macro released by the Autoconf Archive. When you make and distribute a
44 # modified version of the Autoconf Macro, you may extend this special
45 # exception to the GPL to apply to your modified version as well.
46
47 #serial 11
48
49 AC_DEFUN([AX_COMPILER_VENDOR],
50 [AC_CACHE_CHECK([for _AC_LANG compiler vendor], ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor,
51 [# note: don't check for gcc first since some other compilers define __GNUC__
52 vendors="intel: __ICC,__ECC,__INTEL_COMPILER
53 ibm: __xlc__,__xlC__,__IBMC__,__IBMCPP__
54 pathscale: __PATHCC__,__PATHSCALE__
55 clang: __clang__
56 gnu: __GNUC__
57 sun: __SUNPRO_C,__SUNPRO_CC
58 hp: __HP_cc,__HP_aCC
59 dec: __DECC,__DECCXX,__DECC_VER,__DECCXX_VER
60 borland: __BORLANDC__,__TURBOC__
61 comeau: __COMO__
62 cray: _CRAYC
63 kai: __KCC
64 lcc: __LCC__
65 sgi: __sgi,sgi
66 microsoft: _MSC_VER
67 metrowerks: __MWERKS__
68 watcom: __WATCOMC__
69 portland: __PGI
70 unknown: UNKNOWN"
71 for ventest in $vendors; do
72 case $ventest in
73 *:) vendor=$ventest; continue ;;
74 *) vencpp="defined("`echo $ventest | sed 's/,/) || defined(/g'`")" ;;
75 esac
76 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[
77 #if !($vencpp)
78 thisisanerror;
79 #endif
80 ])], [break])
81 done
82 ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor=`echo $vendor | cut -d: -f1`
83 ])
84 ])