gcc 4.8.1 made it to Debian Sid

[Joseph Rushton Wakeling]

On 07/10/2013 02:07 AM, H. S. Teoh wrote:
> Comments / flames / pull requests welcome. ;-)

    string findGDC(string argv0)
    {
        // FIXME: this does not work 100% of the time.
        auto c = match(baseName(argv0), `^(.*-)?g?dmd(-.*)?$`).captures;
        auto targetPrefix = c[1];
        auto gdcDir = absolutePath(dirName(argv0));
        return buildNormalizedPath(gdcDir, targetPrefix ~ "gdc" ~ c[2]);
    }

The "obvious" solution is to have a gdmd.conf file which specifies what gdc
executable to use and where to find it.  This should get round problems such as
gdc being installed in /opt/gdc/bin and gdmd being in /usr/local/bin.

The default would be to select the gdc used to actually build gdmd, with an
option to configure for alternative locations.

findGDC() should probably prioritize in this order:

    * If there's a gdmd.conf, use the gdcDir specified.  There probably
      needs to be a search priority of where to find the .conf file.

    * If not, use which gdc to identify what gdc to call
      (and possibly display a warning that there's no gdmd.conf?)

On a related note, can you clarify what the issues are with findScriptPath ... ?

    string findScriptPath(string argv0)
    {
        // FIXME: this is not 100% reliable; we need equivalent functionality to
        // Perl's FindBin.
        return absolutePath(dirName(argv0));
    }