exherbo-impulze/exlibs/djb.exlib

# Copyright 2008 Daniel Mierswa <impulze@impulze.org>
# Distributed under the terms of the GNU General Public License v2

export_exlib_phases src_prepare src_install

HOMEPAGE_BASE="http://cr.yp.to"
HOMEPAGE_EXTENSION="${HOMEPAGE_EXTENSION:-${PN}.html}"
HOMEPAGE="${HOMEPAGE:-${HOMEPAGE_BASE}/${HOMEPAGE_EXTENSION}}"
LICENCES="${LICENCES:-public-domain}"
DOWNLOADS="${DOWNLOADS:-${HOMEPAGE_BASE}/${PN}/${PNV}.tar.gz}"

# first give gcc, ranlib and ar a host-triplet
# then replace some trivial code with newer extensions of gcc/C to
# avoid running binaries on the host to obtain the information (i.e.
# support cross-compiling)
# TODO: check if iopause.h can be created by us
djb_src_prepare() {
    local basedir=$(dirname $(find -type f -name conf-cc))
    local ranlib_file=$(grep -r ranlib . | sed 's/:.*//')

    edo sed \
        -e "/^gcc/s:.*:& ${CPPFLAGS} ${CFLAGS}:" \
        -e "/^gcc/s:gcc:${CC}:" \
        -i "${basedir}/conf-cc"

    edo sed \
        -e "/^gcc/s:.*:& ${LDFLAGS}:" \
        -e "/^gcc/s:gcc:${CC}:" \
        -i "${basedir}/conf-ld"

    edo sed \
        -e "/echo 'ar cr/s:ar:${AR}:" \
        -e "/*) echo 'ranlib \"\\$/s:ranlib:${RANLIB}:" \
        -i "${ranlib_file}"

    if [ -f "${basedir}/auto-str.c" ] ; then
        edo cat >> "${basedir}/auto-str" <<EOF
#!/bin/bash
printf "const char \${1}[] = \"%s\";\n" \$(printf "\${2}" | od -A n -t o1 | tr ' ' '\\')
EOF
        edo chmod u+x "${basedir}/auto-str"
    fi

    if [ -f "${basedir}/hasshsgr.h1" ] ; then
        edo ln -s hasshsgr.h1 "${basedir}"/hasshsgr.h
    fi

    if [ -f "${basedir}/uint64.h1" ] ; then
        edo cat >> "${basedir}/uint64.h" <<EOF
#ifndef UINT64_H
#define UINT64_H

/* sysdep: -ulong64 */
#include <stdint.h>

typedef uint64_t uint64;

#endif
EOF
    fi

    if [ -f "${basedir}/conf-home" ] ; then
        edo echo /usr > "${basedir}/conf-home"
    fi

    default
}

djb_src_install() {
    local hierc_file=$(find -type f -name hier.c)
    local count dir file opts
    while read line ; do
        line=$(echo ${line} | tr ',' ' ' | tr -d '"')
        count=$(echo ${line} | wc -w)
        [ ${count} -ne 6 ] && continue
        dir=$(echo ${line} | awk '{ print $2 }')
        file=$(echo ${line} | awk '{ print $3 }')
        opts=$(echo ${line} | awk '{ print $6 }')
        opts=${opts#?}
        opts=${opts%??}

        [ ! "${dir%bin}" = "${dir}" ] && dir="/usr/${dir}"

        insinto "${dir}"
        insopts "-m${opts}"
        doins "${file}"
    done < "${hierc_file}"
    # $(tail -n+8 "${hierc_file}" | head -n-1 | tr ',' ' ' | awk '{ print $3 }' | tr -d '"') ; do
}