git.m6w6.name Git - m6w6/libmemcached/blob - 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 ])