Re: Can't make dll out of a static convenience library: This system cannot link to static lib

[Bob Friesenhahn]

On Sat, 4 Jul 2020, basinilya@gmail.com wrote:

> Hi. I'm trying to build mingw-w64-gnutls 3.6.12 on Archlinux. At some point it 
> wants to make a C++ dll out of a C convenience static library and a C++ object 
> file, but libtool omits the static library and link fails with undefined 
> reference.
> I don't understand why libtool omits the static library, because if I call g++ 
> directly the dll is created just fine. I had to manually add `-lssp` to the 
> command line, but I'm not sure if that's the cause.

Libtool assumes that static libraries do not contain objects which are 
built appropriately for use in shared libraries or DLLs.  Quite often 
objects need to be built in special ways (e.g -fPIC, 
dllexport/dllimport declarations) in order to work in shared 
libraries.

Bob
--
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
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