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Re: c++: unrecognized option `-rdynamic'
- To: Tom Weichmann <tomcw at localnet dot com>
- Subject: Re: c++: unrecognized option `-rdynamic'
- From: Mumit Khan <khan at NanoTech dot Wisc dot EDU>
- Date: Sat, 31 Mar 2001 11:09:40 -0600 (CST)
- cc: Cygwin at cygwin dot com
On Sat, 31 Mar 2001, Tom Weichmann wrote:
> I was just compiling the latest Octave (2.1.33) with the latest
> version of Cygwin. Octave has been compiling OOTB for a awhile
> now, but I have ran into an error. I am not sure if this a Cygwin
> problem - something broken in this release, or if it is a new feature
> in Octave which has never been supported in Cygwin. Here is my
[ ... ]
> c++: unrecognized option `-rdynamic'
It's a bug in the configuration, and since it's harmless, nobody had
bothered to remove it. However, it should be fixed in recent CVS. If
not, please send a note to Octave mailing list.
> What is -rdynamic?
It's used for resolving symbols in the executable itself when using
dynamic loading, and typically is a synonym for whatever the native
linker expects (-export-dynamic on Linux for example). On some OS's
such as IRIX, it's ignored, and just works. On others such as Cygwin,
it's a bit more tricky, since you'll have to explicitly export all
the symbols that you want to load dynamically.
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