import os
import re
import subprocess
from entropy.const import etpConst

def configure_correct_gcc():
    gcc_targets = ["4.8", "4.7", "4.6"]
    uname_arch = os.uname()[4]
    gcc_dir = etpConst['systemroot'] + "/etc/env.d/gcc"
    gcc_profile_file = None
    for gcc_target in gcc_targets:
        gcc_profile_file_pfx = uname_arch + "-pc-linux-gnu-" + gcc_target
        regex = re.compile(gcc_profile_file_pfx + "((.[0-30])?)$")

        for curdir, subs, files in os.walk(gcc_dir):
            for fname in files:
                if regex.match(fname):
                   gcc_profile_file = os.path.join(curdir, fname)
                   break
            break
        if gcc_profile_file is not None:
            break
    if gcc_profile_file is not None:
        # if we're hardened, we want the vanilla one by default
        # to avoid stressing the user too much
        vanilla_profile_file = gcc_profile_file + "-vanilla"
        if os.path.isfile(vanilla_profile_file):
            gcc_profile_file = vanilla_profile_file
        profile_name = os.path.basename(gcc_profile_file)
        subprocess.call(("gcc-config", profile_name))

if stage == "postinstall":
    configure_correct_gcc()

my_ext_status = 0