nixpkgs/pkgs/tools/graphics/transfig/builder.sh

source $stdenv/setup

patchPhase=patchPhase
patchPhase() {
    for i in $patches; do
        header "applying patch $i" 3
        patch -p0 < $i || fail
        stopNest
    done

    configureImakefiles "s:__PREFIX_PNG:$libpng:"
    configureImakefiles "s:__PREFIX:$out:"
}

configureImakefiles() {
    local sedcmd=$1

    sed "${sedcmd}" fig2dev/Imakefile > tmpsed
    cp tmpsed fig2dev/Imakefile

    sed "${sedcmd}" fig2dev/dev/Imakefile > tmpsed
    cp tmpsed fig2dev/dev/Imakefile

    sed "${sedcmd}" transfig/Imakefile > tmpsed
    cp tmpsed transfig/Imakefile
}

buildPhase=buildPhase
buildPhase() {
    xmkmf
    make Makefiles
    make
}

preInstall=preInstall
preInstall() {
    ensureDir $out
    ensureDir $out/lib
}

genericBuild