This is the mail archive of the
cygwin
mailing list for the Cygwin project.
Re: load a shared lib created using gcc/Cygwin
- From: Brian Dessent <brian at dessent dot net>
- To: cygwin at cygwin dot com
- Date: Thu, 30 Jun 2005 14:39:19 -0700
- Subject: Re: load a shared lib created using gcc/Cygwin
- References: <200506302128.j5ULSnbI022603@cucujus.ucdavis.edu>
- Reply-to: cygwin at cygwin dot com
Yu-Cheng Chou wrote:
> Can a shared library mylib.dll built using
> gcc -shared -o mylib.dll file.c
> be loaded dynamically at run time by function
> LoadLibrary("mylib.dll") in an application built using
> Visual C++ or .NET?
> I tried it in Windows XP with the latest version of
> gcc/Cygwin, the application will hang
> at LoadLibrary("mylib.dll").
If mylib.dll depends on cygwin1.dll then this will not work. To load
the Cygwin DLL dynamically requires special attention, as described in
the FAQ: <http://cygwin.com/faq/faq.html#SEC102> and recent mailing list
threads, as this is a very recent ability.
If mylib.dll does not need functionality from Cygwin, then you should
compile it with -mno-cygwin, and it will be dynamically loadable without
extra care just like a standard windows DLL. More information about
this is at <http://www.mingw.org/MinGWiki/>. If you go this route you
are no longer using Cygwin so your questions should really be addressed
to the mingw list.
Brian
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/