[PATCH 0/1] Cross-compiling 32-bit macOS from 64-bit-only macOS.

[Dean Greer]

Did Xcode13 now break i386 targets?, as Xcode12 on my M1 Mac Mini had
compiled i386 target wine for me when using MacOSX10.13.SDK

The proposed patch reminds me of a change to meson a while back that
removed this as it caused issues on Linux when cross-compiling for other
distros/archs.

On Thu, Oct 21, 2021 at 1:15 AM Brendan Shanks <bshanks at codeweavers.com>
wrote:

> Something I've been working on lately is cross-compiling Wine for 32-bit
> Mac from newer 64-bit-only macOS versions (10.15 and newer). This should
> be especially useful for anyone packaging Wine for macOS.
>
> The first part needed is a toolchain. Apple's last official toolchain to
> support targeting i386 is Xcode 9.4.1 and the 10.13 SDK, but this is
> unable to run on any OS newer than 10.14.
>
> To fix this, I've created a hack that allows the Xcode 9.4.1 toolchain to
> be used on newer OSes: <https://github.com/mrpippy/XcodeNueve>
>
>
> With the toolchain working, building i386 with it is now a cross-compile.
> Apple does not prefix the commands with the host triplet though
> (i.e. 'i386-apple-darwin'), which Wine seems to expect for cross-compiling.
>
> Specifically, configure adds "-b <host triplet>" to TARGETFLAGS, causing
> winebuild to search for commands like ld and nm prefixed with that host
> triplet, which fails.
>
> This is a patch which only sets that TARGETFLAGS when the host triplet
> appears in $CC. I'm open to a different approach to fixing this though.
>
>
> Here's the command I use to configure, assuming the modified Xcode 9.4.1
> is at /Applications/Xcode9.app:
>
> DEVELOPER_DIR="/Applications/Xcode9.app" \
> SDKROOT="/Applications/Xcode9.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk"
> \
> ../configure --host=i386-apple-darwin \
> --with-wine-tools=<path to wine64 build> --with-wine64=<path to wine64
> build> \
> CC="clang -arch i386" TARGETFLAGS="-m32"
>
> Make also needs to be run with DEVELOPER_DIR and SDKROOT set.
> And this also works on Apple Silicon, just run with 'arch -x86_64'
>
> Brendan Shanks (1):
>   configure: Only set TARGETFLAGS when cross-compiling with
>     host-prefixed tools.
>
>  configure.ac | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> --
> 2.30.1 (Apple Git-130)
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.winehq.org/pipermail/wine-devel/attachments/20211021/42686cf3/attachment.htm>