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newlib-cygwin/newlib/libm/configure.ac
Mike Frysinger 6783cceb0a newlib: libm: switch to autoconf long double macro
Now that we require a recent version of autoconf, we can rely on this
macro working.  We shift the call in configure.ac down a little to
help keep the generated diff minimal -- there should be no functional
difference otherwise.  This is because the autoconf macros will call
a bunch of standard toolchain macros first, and arguably the current
code is incorrect in how it does its testing.
2022-01-19 18:51:04 -05:00

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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_INIT([newlib],[NEWLIB_VERSION])
AC_CONFIG_SRCDIR([libm.texi])
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 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
_LT_PROG_ECHO_BACKSLASH
if test "${use_libtool}" = "yes"; then
LT_INIT([win32-dll])
fi
AC_CONFIG_SUBDIRS(machine)
AC_TYPE_LONG_DOUBLE
AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$ac_cv_type_long_double" = x"yes")
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 complex/Makefile fenv/Makefile])
AC_OUTPUT