git.m6w6.name Git - m6w6/libmemcached/blob - m4/pandora_cstdint.m4

   1 # Copyright (C) 2008 Sun Microsystems, Inc.
   2 # This file is free software; Sun Microsystems, Inc.
   3 # gives unlimited permission to copy and/or distribute it,
   4 # with or without modifications, as long as this notice is preserved.
   5
   6 # We check two things: where the include file is for cstdint. We
   7 # include AC_TRY_COMPILE for all the combinations we've seen in the
   8 # wild.  We define one of HAVE_CSTDINT or HAVE_TR1_CSTDINT or
   9 # HAVE_BOOST_CSTDINT depending
  10 # on location.
  11
  12 AC_DEFUN([PANDORA_CXX_CSTDINT],
  13   [AC_MSG_CHECKING(the location of cstdint)
  14    AC_LANG_PUSH(C++)
  15    save_CXXFLAGS="${CXXFLAGS}"
  16    CXXFLAGS="${CXX_STANDARD} ${CXXFLAGS}"
  17    ac_cv_cxx_cstdint=""
  18    for location in tr1/cstdint boost/cstdint cstdint; do
  19      if test -z "$ac_cv_cxx_cstdint"; then
  20        AC_TRY_COMPILE([#include <$location>],
  21                       [uint32_t t],
  22                       [ac_cv_cxx_cstdint="<$location>";])
  23      fi
  24    done
  25    AC_LANG_POP()
  26    CXXFLAGS="${save_CXXFLAGS}"
  27    if test -n "$ac_cv_cxx_cstdint"; then
  28       AC_MSG_RESULT([$ac_cv_cxx_cstdint])
  29    else
  30       AC_DEFINE([__STDC_CONSTANT_MACROS],[1],[Use STDC Constant Macros in C++])
  31       AC_DEFINE([__STDC_FORMAT_MACROS],[1],[Use STDC Format Macros in C++])
  32       ac_cv_cxx_cstdint="<stdint.h>"
  33       AC_MSG_RESULT()
  34       AC_MSG_WARN([Could not find a cstdint header.])
  35    fi
  36    AC_DEFINE_UNQUOTED(CSTDINT_H,$ac_cv_cxx_cstdint,
  37                       [the location of <cstdint>])
  38 ])