On Thu, Jan 02, 2025 at 12:24:42PM -0500, Nick wrote:
> The compiler successfully creates "fat" mac binaries which contain both
> the arm64 and x64 binaries for other open source projects, as well as my
> own code. I accomplish this by passing "-arch x86_64 -arch arm64" to
> the relevant compiler flags (CFLAGS for the open source projects).
Unfortunately, that can't trivially work for OpenSSL, because
architecture-specific assembly targets are included in the build. You'd
need to build *both* the ARM *and* X86_64 assembly targets, invoking the
appropriate assembler on each one, and producing either object code for
that particular platform for inclusion in the "fat" binary, or somehow
producting a "fat" objec that is "empty" for one of the targets.
How to do that, requires more detailed knowledge of fat binaries than I
can muster.
> I'm trying to do the same for OpenSSL v1.1.1w, but I get the following
> error:
>
> crypto/arm_arch.h:55:6: error: "unsupported ARM architecture"
>
> Even if I try to build OpenSSL only for x64 (by passing CFLAGS=-arch
> x86_64), the OpenSSL compile sets both "-arch arm64 -arch x86_64". Note
> the order of these params is the opposite from what I pass, so tells me
> something in the configuration script is setting these.
>
> If I pass no params for CFLAGS, OpenSSL builds successfully, but for
> only ARM64.
>
> If this issue is already fixed in a newer version of OpenSSL I'm fine
> to upgrade.
I don't expect this is supported or "fixed".
--
Viktor.
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