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dnl This is the newlib/libm configure.in file.

dnl Process this file with autoconf to produce a configure script.

AC_PREREQ(2.59)

AC_INIT([newlib],[NEWLIB_VERSION])

AC_CONFIG_SRCDIR([libm.texinfo])

AC_ARG_ENABLE(newlib_hw_fp,

[  --enable-newlib-hw-fp    Turn on hardware floating point math],

[case "${enableval}" in

   yes) newlib_hw_fp=true ;;

   no)  newlib_hw_fp=false ;;

   *) AC_MSG_ERROR(bad value ${enableval} for --enable-newlib-hw-fp) ;;

 esac],[newlib_hw_fp=false])

AM_CONDITIONAL(NEWLIB_HW_FP, test x$newlib_hw_fp = xtrue)

dnl Autoconf 2.59 doesn't support the AC_TYPE_LONG_DOUBLE macro. Instead of:

dnl   AC_TYPE_LONG_DOUBLE

dnl   AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$ac_cv_type_long_double" = x"yes")

dnl we specify our own long double test.

AC_CACHE_CHECK([Checking long double support], [acnewlib_cv_type_long_double],[dnl

cat > conftest.c <

int main() {

long double x = 0.0L;

return 0;

}

EOF

if AC_TRY_COMMAND([${CC} $CFLAGS $CPPFLAGS -c conftest.c 1>&AS_MESSAGE_LOG_FD])

then

  acnewlib_cv_type_long_double=yes

else

  acnewlib_cv_type_long_double=no

fi

rm -f conftest*])

AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$acnewlib_cv_type_long_double" = x"yes")

dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake.

AC_CONFIG_AUX_DIR(../..)

NEWLIB_CONFIGURE(..)

dnl We have to enable libtool after NEWLIB_CONFIGURE because if we try and

dnl add it into NEWLIB_CONFIGURE, executable tests are made before the first

dnl line of the macro which fail because appropriate LDFLAGS are not set.

_LT_DECL_SED

if test "${use_libtool}" = "yes"; then

AC_LIBTOOL_WIN32_DLL

AM_PROG_LIBTOOL

fi

AC_CONFIG_SUBDIRS(machine)

LIBM_MACHINE_LIB=

if test -n "${libm_machine_dir}"; then

  if test "${use_libtool}" = "yes"; then

    LIBM_MACHINE_LIB=machine/${libm_machine_dir}/lib${libm_machine_dir}.${aext}

  else

    LIBM_MACHINE_LIB=machine/lib.${aext}

  fi

fi

AC_SUBST(LIBM_MACHINE_LIB)

AC_CONFIG_FILES([Makefile math/Makefile mathfp/Makefile common/Makefile])

AC_OUTPUT