gdc phobos and druntime automatic import

[Benjamin Thaut]

Am 15.03.2013 17:06, schrieb Iain Buclaw:
> On 15 March 2013 15:21, Benjamin Thaut <code at benjamin-thaut.de
> <mailto:code at benjamin-thaut.de>> wrote:
>
>     Am 15.03.2013 15:29, schrieb Iain Buclaw:
>
>         On 15 March 2013 14:06, Benjamin Thaut <code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>
>
>         <mailto:code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>__>> wrote:
>
>              Am 15.03.2013 14:20, schrieb Iain Buclaw:
>
>                  On 15 March 2013 13:18, Iain Buclaw <ibuclaw at ubuntu.com
>         <mailto:ibuclaw at ubuntu.com>
>                  <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>>
>
>                  <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>
>         <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>>>> wrote:
>
>                       On 15 March 2013 13:05, Benjamin Thaut
>                  <code at benjamin-thaut.de <mailto:code at benjamin-thaut.de>
>         <mailto:code at benjamin-thaut.de <mailto:code at benjamin-thaut.de>__>
>                       <mailto:code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>
>                  <mailto:code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>__>__>> wrote:
>
>                           Am 15.03.2013 13:26, schrieb Iain Buclaw:
>
>                               On 15 March 2013 12:01, Benjamin Thaut
>                               <code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>
>                  <mailto:code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>__>
>         <mailto:code at benjamin-thaut.de <mailto:code at benjamin-thaut.de>
>                  <mailto:code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>__>__>
>
>                               <mailto:code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>
>                  <mailto:code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>__>
>
>                               <mailto:code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>
>                  <mailto:code at benjamin-thaut.de
>         <mailto:code at benjamin-thaut.de>__>__>__>> wrote:
>
>
>                                    Well I don't want to overwrite the
>         existing
>                  version of
>                               druntime and
>                                    phobos. I want to be ablte to
>         specifiy via a
>                  compiler
>                               option to use
>                                    a different version of them. In some
>         projects
>                  I use the
>                               original
>                                    druntime + phobos and in other
>         projects I use
>                  my custom
>                               version.
>                                    With dmd this is possible via a
>         custom sc.ini
>                  file. So
>                               is there a
>                                    option to just remove druntime/phobos
>         from
>                               LIBRARY_PATH? (and keep
>                                    everything else)
>
>                                    Kind Regards
>                                    Benjamin Thaut
>
>
>                               You didn't seem to read my first message. :)
>
>                               On 15 March 2013 10:03, Iain Buclaw
>                  <ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>
>         <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>>
>                               <mailto:ibuclaw at ubuntu.com
>         <mailto:ibuclaw at ubuntu.com> <mailto:ibuclaw at ubuntu.com
>         <mailto:ibuclaw at ubuntu.com>>>
>                               <mailto:ibuclaw at ubuntu.com
>         <mailto:ibuclaw at ubuntu.com>
>                  <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>>
>         <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>
>                  <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>>>>
>                               <mailto:ibuclaw at ubuntu.com
>         <mailto:ibuclaw at ubuntu.com>
>                  <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>>
>         <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>
>                  <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>>>
>                               <mailto:ibuclaw at ubuntu.com
>         <mailto:ibuclaw at ubuntu.com>
>                  <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>>
>         <mailto:ibuclaw at ubuntu.com <mailto:ibuclaw at ubuntu.com>
>                  <mailto:ibuclaw at ubuntu.com
>         <mailto:ibuclaw at ubuntu.com>>>>>__> wrote:
>
>                                     The library is installed in
>         /usr/lib,  which
>                  is part
>                               of the
>                                     LIBRARY_PATH.   The static library
>         itself is a
>                               combination of
>                                     druntime and phobos together, not
>         separate at the
>                               moment.  To
>                                     specify a different standard
>         library, use
>                  -defaultlib
>                               switch.
>
>
>
>                               --
>                               Iain Buclaw
>
>                               *(p < e ? p++ : p) = (c & 0x0f) + '0';
>
>
>                           I don't fully understand that statement.
>                           So the -defaultlib switch gives the location
>         for the import
>                           files .di/.d and not for the actual library (.a) ?
>
>
>                       No,  that's -I and -J
>
>
>
>                  Use case:
>
>                  gdc foo.d -defaultlib tango2
>
>
>                  This will invoke the driver to add -ltango2 to the
>         linker options,
>                  instead of -lgphobos2
>
>                  Regards
>                  --
>                  Iain Buclaw
>
>                  *(p < e ? p++ : p) = (c & 0x0f) + '0';
>
>
>              Well but I'm not talking about the linker. If I do
>
>              import std.stdio;
>
>              I want to have a error message that std.stdio does not exist.
>
>              Kind Regards
>              Benjamin Thaut
>
>
>
>         -nostdinc should do that.  Though the first error thrown would
>         be that
>         object.di cannot be found, which is correct behaviour,  you need to
>         specify where the new object.di is using -I
>
>
>         --
>         Iain Buclaw
>
>         *(p < e ? p++ : p) = (c & 0x0f) + '0';
>
>
>     Thats the problem. As soon as I specify -nostdinc a lot of other
>     options get missing to. For example gdc no longer includes the
>     contents of version(Windows) statements.
>     Is it possible that the phobos-ver-syms files have something to do
>     with that?
>
>
> That shouldn't be the case if you are using a recent development version
> (see patch-versym-os-4.8.x where there is a builtin define for Windows)
>
> --
> Iain Buclaw
>
> *(p < e ? p++ : p) = (c & 0x0f) + '0';

Well mingw-gdc is quite a bit behind.

Kind Regards
Benjamin Thaut