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

   1 # We check two things: where the include file is for cstdint. We
   2 # include AC_TRY_COMPILE for all the combinations we've seen in the
   3 # wild.  We define one of HAVE_CSTDINT or HAVE_TR1_CSTDINT or
   4 # HAVE_BOOST_CSTDINT depending
   5 # on location.
   6
   7 AC_DEFUN([PANDORA_CXX_CSTDINT],
   8   [AC_MSG_CHECKING(the location of cstdint)
   9    AC_LANG_PUSH(C++)
  10    save_CXXFLAGS="${CXXFLAGS}"
  11    CXXFLAGS="${CXX_STANDARD} ${CXXFLAGS}"
  12    ac_cv_cxx_cstdint=""
  13    for location in tr1/cstdint boost/cstdint cstdint; do
  14      if test -z "$ac_cv_cxx_cstdint"; then
  15        AC_TRY_COMPILE([#include <$location>],
  16                       [uint32_t t],
  17                       [ac_cv_cxx_cstdint="<$location>";])
  18      fi
  19    done
  20    AC_LANG_POP()
  21    CXXFLAGS="${save_CXXFLAGS}"
  22    if test -n "$ac_cv_cxx_cstdint"; then
  23       AC_MSG_RESULT([$ac_cv_cxx_cstdint])
  24    else
  25       AC_DEFINE([__STDC_CONSTANT_MACROS],[1],[Use STDC Constant Macros in C++])
  26       AC_DEFINE([__STDC_FORMAT_MACROS],[1],[Use STDC Format Macros in C++])
  27       ac_cv_cxx_cstdint="<stdint.h>"
  28       AC_MSG_RESULT()
  29       AC_MSG_WARN([Could not find a cstdint header.])
  30    fi
  31    AC_DEFINE_UNQUOTED(CSTDINT_H,$ac_cv_cxx_cstdint,
  32                       [the location of <cstdint>])
  33 ])