# This file adds the functions to build the ISL library

# Copyright 2009 Yann E. MORIN

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

do_isl_get() { :; }

do_isl_extract() { :; }

do_isl_for_build() { :; }

do_isl_for_host() { :; }

# Overide functions depending on configuration

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

# Download ISL

do_isl_get() {

    CT_GetFile "isl-${CT_ISL_VERSION}"  \

        ftp://ftp.linux.student.kuleuven.be/pub/people/skimo/isl/

}

# Extract ISL

do_isl_extract() {

    CT_Extract "isl-${CT_ISL_VERSION}"

    CT_Patch "isl" "${CT_ISL_VERSION}"

}

# Build ISL for running on build

# - always build statically

# - we do not have build-specific CFLAGS

# - install in build-tools prefix

do_isl_for_build() {

    local -a isl_opts

    local isl_cflags

    local isl_cxxflags

    case "${CT_TOOLCHAIN_TYPE}" in

        native|cross)   return 0;;

    esac

    CT_DoStep INFO "Installing ISL for build"

    CT_mkdir_pushd "${CT_BUILD_DIR}/build-isl-build-${CT_BUILD}"

    isl_cflags="${CT_CFLAGS_FOR_BUILD}"

    isl_cxxflags="${CT_CFLAGS_FOR_BUILD}"

    isl_opts+=( "host=${CT_BUILD}" )

    isl_opts+=( "prefix=${CT_BUILDTOOLS_PREFIX_DIR}" )

    isl_opts+=( "cflags=${isl_cflags}" )

    isl_opts+=( "cxxflags=${isl_cxxflags}" )

    isl_opts+=( "ldflags=${CT_LDFLAGS_FOR_BUILD}" )

    do_isl_backend "${isl_opts[@]}"

    CT_Popd

    CT_EndStep

}

# Build ISL for running on host

do_isl_for_host() {

    local -a isl_opts

    local isl_cflags

    local isl_cxxflags

    CT_DoStep INFO "Installing ISL for host"

    CT_mkdir_pushd "${CT_BUILD_DIR}/build-isl-host-${CT_HOST}"

    isl_cflags="${CT_CFLAGS_FOR_HOST}"

    isl_cxxflags="${CT_CFLAGS_FOR_HOST}"

    isl_opts+=( "host=${CT_HOST}" )

    isl_opts+=( "prefix=${CT_HOST_COMPLIBS_DIR}" )

    isl_opts+=( "cflags=${isl_cflags}" )

    isl_opts+=( "cxxflags=${isl_cxxflags}" )

    isl_opts+=( "ldflags=${CT_LDFLAGS_FOR_HOST}" )

    do_isl_backend "${isl_opts[@]}"

    CT_Popd

    CT_EndStep

}

# Build ISL

#     Parameter     : description               : type      : default

#     host          : machine to run on         : tuple     : (none)

#     prefix        : prefix to install into    : dir       : (none)

#     cflags        : cflags to use             : string    : (empty)

#     ldflags       : ldflags to use            : string    : (empty)

do_isl_backend() {

    local host

    local prefix

    local cflags

    local cxxflags

    local ldflags

    local arg

    for arg in "$@"; do

        eval "${arg// /\\ }"

    done

    CT_DoLog EXTRA "Configuring ISL"

    CT_DoExecLog CFG                                \

    CFLAGS="${cflags}"                              \

    CXXFLAGS="${cxxflags}"                          \

    LDFLAGS="${ldflags}"                            \

    "${CT_SRC_DIR}/isl-${CT_ISL_VERSION}/configure" \

        --build=${CT_BUILD}                         \

        --host=${host}                              \

        --prefix="${prefix}"                        \

        --with-libgmp-prefix="${prefix}"            \

        --with-libgmpxx-prefix="${prefix}"          \

        --with-gmp-prefix="${prefix}"               \

        --disable-shared                            \

        --enable-static                             \

        --with-gmp=system                           \

        --with-gmp-prefix="${prefix}"               \

        --with-piplib=no                            \

        --with-clang=no

    CT_DoLog EXTRA "Building ISL"

    CT_DoExecLog ALL make ${JOBSFLAGS}

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

        CT_DoLog EXTRA "Checking ISL"

        CT_DoExecLog ALL make ${JOBSFLAGS} -s check

    fi

    CT_DoLog EXTRA "Installing ISL"

    CT_DoExecLog ALL make install

}

fi # CT_ISL