Re: GTK+3 win32/64 build environment

[Paul Davis <paul linuxaudiosystems com>]

On Wed, Apr 10, 2013 at 2:23 PM, Paul Davis <paul linuxaudiosystems com> wrote:

On Wed, Apr 10, 2013 at 2:19 PM, Marc-André Lureau <marcandre lureau gmail com> wrote:

On Wed, Apr 10, 2013 at 8:08 PM, Paul Davis <paul linuxaudiosystems com> wrote:

i assume you mean as the fallback?

You said, "should first try checking for an environment variable and then a path relative to the executable.", what environment variable? PKGDATADIR? Who set it?

application or toolkit specific. the search order should be:

    getenv (MYAPP_DATA_DIR)
    get_executable_path () + sub-dir
    standard system dir(s)
    compile-time value
 

Is it only for the developper? If you have a good case for that extra environment variable, I would suggest to submit a patch to g_get_system_data_dirs(), It does the later, giving you a list of where to look for the data. So it could easily be tweaked to look for more locations.

no. g_get_system_data_dirs() does not work for relocatable applications, at least not on *nix-ish systems.

just to reinforce that point, code from g_get_system_data_dirs():

#ifdef G_OS_WIN32
      data_dir_vector = (gchar **) g_win32_get_system_data_dirs_for_module (NULL);
#else
      gchar *data_dirs = (gchar *) g_getenv ("XDG_DATA_DIRS");

      if (!data_dirs || !data_dirs[0])
          data_dirs = "/usr/local/share/:/usr/share/";

      data_dir_vector = g_strsplit (data_dirs, G_SEARCHPATH_SEPARATOR_S, 0);
#endif

G_OS_WIN32 is the only case where the location of the executable/module is taken into account. Total fail for OS X and arguably a PITA for linux etc. as well.