On 2025-09-03 13:56, Jeremy Drake via Cygwin wrote:
On Wed, 3 Sep 2025, Mark Liam Brown via Cygwin wrote:
Greetings
Our software needs a 3rd party DLL (we cannot change the name...), but
we want to support ARM64 together with AMD64.
Does Windows or Cygwin have a mechanism to deal with the situation
that both expects the DLL to be in the same path?
Not really. The closest thing is ARM64EC and ARM64X, a DLL built with
those will let you use the same DLL for both ARM64 and x64, but only on
ARM64. I know there has been work to support those in LLVM/LLD and
mingw-w64, don't know about gcc/binutils support.
I think they expect the installer to decide which type of DLL to install
based on the host machine...
Cygwin x86_64 and aarch64 have to be installed under different Cygwin root
directories, and the binaries and libraries under each root's /bin/, so no
conflict can occur.
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retrancher but when there is no more to cut
-- Antoine de Saint-Exupéry
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