Re: Runtime detection of EA support

On 7/4/07, Denis Corbin <[email protected]> wrote:
> I am not aware of a portable way to dynamically load a
> library at execution time once the process has been ran.

Denis,
The dlopen/dlsym API is widely available and can load functions from a
library at runtime, that's the one I would use on Linux/BSD/UNIX.
Early versions of Mac OS X don't have dlopen, so they can use a
Mac-specific API CFBundleGetFunctionPointerForName. I'm sure there's
an equivalent Windows solution. (Does dar even support EAs on Windows?
I was under the impression Cygwin does not support the xattr API.)

Anyhow, this is only an optional feature. If some unusual platform has
no known method for supporting runtime symbol lookup, then they'll
have only compile-time EA support. They won't be any worse off than
they are now.

Dave

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