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win32: g_getenv() should return "" if variable exists and empty
On Windows, GetEnvironmentVariable() returns 0 for empty variables. Checking GetLastError() == ERROR_ENVVAR_NOT_FOUND helps make a difference between a variable that does not exist or an empty one which should return "". https://bugzilla.gnome.org/show_bug.cgi?id=679617
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@ -466,7 +466,11 @@ g_getenv (const gchar *variable)
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if (len == 0)
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{
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g_free (wname);
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if (GetLastError () == ERROR_ENVVAR_NOT_FOUND)
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return NULL;
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quark = g_quark_from_static_string ("");
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return g_quark_to_string (quark);
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}
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else if (len == 1)
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len = 2;
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