On 09/01/2017 04:05 PM, Simon Wright wrote:
> In gcc/config/darwin-driver.c, darwin_find_version_from_kernel() assumes
> that the minor version in the Darwin kernel version (16.7.0, => minor
> version 7) is equal to the bugfix component of the macOS version, so that
> the compiler receives -mmacosx-version-min=10.12.7 and the linker receives
> -macosx_version_min 10.12.7.
>
> Unfortunately, Apple don’t apply this algorithm; the macOS version is
> actually 10.12.6.
>
> Getting this wrong means that it’s impossible to run an executable from
> within a bundle: Sierra complains "You have macOS 10.12.6. The application
> requires macOS 10.12.7 or later".
>
> A workround would perhaps be to link the executable with
> -Wl,-macosx_version_min,`sw_vers -productVersion` (I assume that it’s only
> the linker phase that matters?)
>
> I see that Apple’s gcc (Apple LLVM version 8.0.0
> (clang-800.0.42.1)) specifies - only at link time -
> -macosx_version_min 10.12.0
>
> This patch does the same.
>
> gcc/Changelog:
>
> 2017-09-01 Simon Wright <si...@pushface.org>
>
> PR target/80204
> * config/darwin-driver.c (darwin_find_version_from_kernel): eliminate
> calculation of the
> minor version, always output as 0.
>
OK
jeff
