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      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 (a] 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 15
     48 
     49 AC_DEFUN([AX_COMPILER_VENDOR],
     50 [AC_CACHE_CHECK([for _AC_LANG compiler vendor], ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor,
     51   dnl Please add if possible support to ax_compiler_version.m4
     52   [# note: don't check for gcc first since some other compilers define __GNUC__
     53   vendors="intel:     __ICC,__ECC,__INTEL_COMPILER
     54            ibm:       __xlc__,__xlC__,__IBMC__,__IBMCPP__
     55            pathscale: __PATHCC__,__PATHSCALE__
     56            clang:     __clang__
     57            cray:      _CRAYC
     58            fujitsu:   __FUJITSU
     59            gnu:       __GNUC__
     60            sun:       __SUNPRO_C,__SUNPRO_CC
     61            hp:        __HP_cc,__HP_aCC
     62            dec:       __DECC,__DECCXX,__DECC_VER,__DECCXX_VER
     63            borland:   __BORLANDC__,__CODEGEARC__,__TURBOC__
     64            comeau:    __COMO__
     65            kai:       __KCC
     66            lcc:       __LCC__
     67            sgi:       __sgi,sgi
     68            microsoft: _MSC_VER
     69            metrowerks: __MWERKS__
     70            watcom:    __WATCOMC__
     71            portland:  __PGI
     72 	   tcc:       __TINYC__
     73            unknown:   UNKNOWN"
     74   for ventest in $vendors; do
     75     case $ventest in
     76       *:) vendor=$ventest; continue ;;
     77       *)  vencpp="defined("`echo $ventest | sed 's/,/) || defined(/g'`")" ;;
     78     esac
     79     AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[
     80       #if !($vencpp)
     81         thisisanerror;
     82       #endif
     83     ])], [break])
     84   done
     85   ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor=`echo $vendor | cut -d: -f1`
     86  ])
     87 ])
     88