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jeremybenn |
dnl This is the newlib/libm configure.in file.
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dnl Process this file with autoconf to produce a configure script.
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AC_PREREQ(2.59)
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AC_INIT([newlib],[NEWLIB_VERSION])
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AC_CONFIG_SRCDIR([libm.texinfo])
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AC_ARG_ENABLE(newlib_hw_fp,
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[ --enable-newlib-hw-fp Turn on hardware floating point math],
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[case "${enableval}" in
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yes) newlib_hw_fp=true ;;
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no) newlib_hw_fp=false ;;
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*) AC_MSG_ERROR(bad value ${enableval} for --enable-newlib-hw-fp) ;;
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esac],[newlib_hw_fp=false])
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AM_CONDITIONAL(NEWLIB_HW_FP, test x$newlib_hw_fp = xtrue)
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dnl Autoconf 2.59 doesn't support the AC_TYPE_LONG_DOUBLE macro. Instead of:
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dnl AC_TYPE_LONG_DOUBLE
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dnl AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$ac_cv_type_long_double" = x"yes")
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dnl we specify our own long double test.
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AC_CACHE_CHECK([Checking long double support], [acnewlib_cv_type_long_double],[dnl
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cat > conftest.c <
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int main() {
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long double x = 0.0L;
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return 0;
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}
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EOF
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if AC_TRY_COMMAND([${CC} $CFLAGS $CPPFLAGS -c conftest.c 1>&AS_MESSAGE_LOG_FD])
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then
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acnewlib_cv_type_long_double=yes
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else
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acnewlib_cv_type_long_double=no
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fi
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rm -f conftest*])
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AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$acnewlib_cv_type_long_double" = x"yes")
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dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake.
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AC_CONFIG_AUX_DIR(../..)
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NEWLIB_CONFIGURE(..)
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dnl We have to enable libtool after NEWLIB_CONFIGURE because if we try and
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dnl add it into NEWLIB_CONFIGURE, executable tests are made before the first
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dnl line of the macro which fail because appropriate LDFLAGS are not set.
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_LT_DECL_SED
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if test "${use_libtool}" = "yes"; then
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AC_LIBTOOL_WIN32_DLL
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AM_PROG_LIBTOOL
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fi
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AC_CONFIG_SUBDIRS(machine)
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LIBM_MACHINE_LIB=
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if test -n "${libm_machine_dir}"; then
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if test "${use_libtool}" = "yes"; then
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LIBM_MACHINE_LIB=machine/${libm_machine_dir}/lib${libm_machine_dir}.${aext}
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else
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LIBM_MACHINE_LIB=machine/lib.${aext}
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fi
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fi
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AC_SUBST(LIBM_MACHINE_LIB)
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AC_CONFIG_FILES([Makefile math/Makefile mathfp/Makefile common/Makefile])
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AC_OUTPUT
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