- Giving asn1_compile the name of an ASN.1 module w/o the ".asn1" stem
will cause the compiler to add the ".asn1" stem, and it will cause
the compiler to look for a ".opt" file as well.
- The default C module name substring derivation from the .asn1 file
name is improved.
- There is now a --gen-name=NAME option for specifying the C module
name substring. This is useful for specifying that in a .opt file.
- More options now have helpful usage messages.
This will allow simplification of lib/asn1/Makefile.am's invocations of
asn1_compile.
We may well end up requiring the automatic .opt file finding feature
when we eventualy add support for parsing multiple modules in a single
invocation for better support of IMPORTs.
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