library = OldOpenLibrary(libName)
D0 A1
struct Library *OldOpenLibrary(APTR);
The 1.0 release of the Amiga system had an incorrect version of
OpenLibrary that did not check the version number during the library open. This obsolete function is provided so that object code compiled using a 1.0 system will still run.
This exactly the same as "
OpenLibrary(libName,0L);"