# This file adds the functions to build the MPFR library

# Copyright 2008 Yann E. MORIN

# Licensed under the GPL v2. See COPYING in the root of this package

do_print_filename() { :; }

do_mpfr_get() { :; }

do_mpfr_extract() { :; }

do_mpfr() { :; }

do_mpfr_target() { :; }

# Overide function depending on configuration

if [ "${CT_GMP_MPFR}" = "y" ]; then

do_print_filename() {

    [ "${CT_GMP_MPFR}" = "y" ] || return 0

    echo "mpfr-${CT_MPFR_VERSION}"

}

# Download MPFR

do_mpfr_get() {

    CT_GetFile "${CT_MPFR_FILE}" http://www.mpfr.org/mpfr-current/          \

                                 http://www.mpfr.org/mpfr-${CT_MPFR_VERSION}/

}

# Extract MPFR

do_mpfr_extract() {

    CT_ExtractAndPatch "${CT_MPFR_FILE}"

    # OK, Gentoo have a sanity check that libtool.m4 and ltmain.sh have the

    # same version number. Unfortunately, some tarballs of MPFR are not

    # built sanely, and thus ./configure fails on Gentoo.

    # See: http://sourceware.org/ml/crossgcc/2008-05/msg00080.html

    # and: http://sourceware.org/ml/crossgcc/2008-06/msg00005.html

    # This hack is not bad per se, but the MPFR guys would be better not to

    # do that in the future...

    CT_Pushd "${CT_SRC_DIR}/${CT_MPFR_FILE}"

    if [ ! -f .autotools.ct-ng ]; then

        CT_DoLog DEBUG "Re-building autotools files"

        CT_DoExecLog ALL autoreconf -fi

        # Starting with libtool-1.9f, config.{guess,sub} are no longer

        # installed without -i, but starting with libtool-2.2.6, they

        # are no longer removed without -i. Sight... Just use -i with

        # libtool >=2

        # See: http://sourceware.org/ml/crossgcc/2008-11/msg00046.html

        # and: http://sourceware.org/ml/crossgcc/2008-11/msg00048.html

        libtoolize_opt=

        case "$(libtoolize --version |head -n 1 |gawk '{ print $(NF); }')" in

            0.*)    ;;

            1.*)    ;;

            *)      libtoolize_opt=-i;;

        esac

        CT_DoExecLog ALL libtoolize -f ${libtoolize_opt}

        touch .autotools.ct-ng

    fi

    CT_Popd

}

do_mpfr() {

    mkdir -p "${CT_BUILD_DIR}/build-mpfr"

    cd "${CT_BUILD_DIR}/build-mpfr"

    CT_DoStep INFO "Installing MPFR"

    CT_DoLog EXTRA "Configuring MPFR"

    CFLAGS="${CT_CFLAGS_FOR_HOST}"              \

    CT_DoExecLog ALL                            \

    "${CT_SRC_DIR}/${CT_MPFR_FILE}/configure"   \

        --build=${CT_BUILD}                     \

        --host=${CT_HOST}                       \

        --prefix="${CT_PREFIX_DIR}"             \

        --enable-thread-safe                    \

        --disable-shared --enable-static        \

        --with-gmp="${CT_PREFIX_DIR}"

    CT_DoLog EXTRA "Building MPFR"

    CT_DoExecLog ALL make ${PARALLELMFLAGS}

    if [ "${CT_MPFR_CHECK}" = "y" ]; then

        CT_DoLog EXTRA "Checking MPFR"

        CT_DoExecLog ALL make ${PARALLELMFLAGS} -s check

    fi

    CT_DoLog EXTRA "Installing MPFR"

    CT_DoExecLog ALL make install

    CT_EndStep

}

if [ "${CT_GMP_MPFR_TARGET}" = "y" ]; then

do_mpfr_target() {

    mkdir -p "${CT_BUILD_DIR}/build-mpfr-target"

    cd "${CT_BUILD_DIR}/build-mpfr-target"

    CT_DoStep INFO "Installing MPFR for the target"

    CT_DoLog EXTRA "Configuring MPFR"

    CFLAGS="${CT_CFLAGS_FOR_TARGET}"            \

    CT_DoExecLog ALL                            \

    "${CT_SRC_DIR}/${CT_MPFR_FILE}/configure"   \

        --build=${CT_BUILD}                     \

        --host=${CT_TARGET}                     \

        --prefix=/usr                           \

        --enable-thread-safe                    \

        --disable-shared --enable-static        \

        --with-gmp="${CT_SYSROOT_DIR}/usr"

    CT_DoLog EXTRA "Building MPFR"

    CT_DoExecLog ALL make ${PARALLELMFLAGS}

    # Not possible to check MPFR while X-compiling

    CT_DoLog EXTRA "Installing MPFR"

    CT_DoExecLog ALL make DESTDIR="${CT_SYSROOT_DIR}" install

    CT_EndStep

}

fi # CT_GMP_MPFR_TARGET == y

fi # CT_GMP_MPFR == y