Why 2 DLL names?

[Roy Clemmons]

Greetings,

Using Cygwin 1.5.5-1, I am porting a Unix shared library to Windows.
After making and linking the library with libtool, two DLLs were
created:

libxxxxxx.dll.a
cygxxxxxx-1.dll

I guess I was only expecting: libxxxxxx.dll.

Why were the 2 names generated and why the "cyg" prefix on one of
them?  Also, which one should I use?

Thank you for you patience with me as I learn the cygwin environment.

Roy

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