In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a document associated with the app, the document(s) are passed to SDL_main() as if they were command line arguments. Otherwise, the command line is always empty and there is no way for the app to recover this information.

## Makefile.am for the XFree86 Xxf86dga library

noinst_LTLIBRARIES = libXFree86_Xxf86dga.la
libXFree86_Xxf86dga_la_SOURCES = XF86DGA2.c XF86DGA.c