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# We check two things: where the include file is for cstdint. We
# include AC_TRY_COMPILE for all the combinations we've seen in the
# wild. We define one of HAVE_CSTDINT or HAVE_TR1_CSTDINT or
# HAVE_BOOST_CSTDINT depending
# on location.
AC_DEFUN([AC_CXX_CSTDINT],
[AC_MSG_CHECKING(the location of cstdint)
AC_LANG_PUSH(C++)
ac_cv_cxx_cstdint=""
for location in tr1/cstdint boost/cstdint cstdint; do
if test -z "$ac_cv_cxx_cstdint"; then
AC_TRY_COMPILE([#include <$location>],
[uint32_t t],
[ac_cv_cxx_cstdint="<$location>";])
fi
done
AC_LANG_POP()
if test -n "$ac_cv_cxx_cstdint"; then
AC_MSG_RESULT([$ac_cv_cxx_cstdint])
else
AC_DEFINE([__STDC_CONSTANT_MACROS],[1],[Use STDC Constant Macros in C++])
AC_DEFINE([__STDC_FORMAT_MACROS],[1],[Use STDC Format Macros in C++])
ac_cv_cxx_cstdint="<stdint.h>"
AC_MSG_RESULT()
AC_MSG_WARN([Could not find a cstdint header.])
fi
AC_DEFINE_UNQUOTED(CSTDINT_H,$ac_cv_cxx_cstdint,
[the location of <cstdint>])
])
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