The ld that we use for Mac builds is old (Xcode circa OS X 10.7), and
also crashes in various ways when we try to use newer Rust versions
and/or pass options to make the linker work with newer Rust versions.
To mitigate this, let's build with a newer linker, compiled from:
https://github.com/tpoechtrager/cctools-port
We use this port, rather than the packages from opensource.apple.com,
because the packages from Apple have decidely non-intuitive build
systems, and require some hacking to get to build. This port, in
contrast, is simply built with:
CFLAGS='-mcpu=generic -mtune=generic' ./configure --target=x86_64-apple-darwin11
env MACOSX_DEPLOYMENT_TARGET=10.7 make
and the resulting x86_64-apple-darwin11-ld is renamed as 'ld' and
packaged up for automation's purposes.
However, since this linker is newer, it also produces bits of Mach-O
that our older build tools don't understand. Fortunately, we can pass
appropriate options to the linker to turn off generation of those Mach-O
bits.
The ld that we use for Mac builds is old (Xcode circa OS X 10.7), and
also crashes in various ways when we try to use newer Rust versions
and/or pass options to make the linker work with newer Rust versions.
To mitigate this, let's build with a newer linker, compiled from:
https://github.com/tpoechtrager/cctools-port
We use this port, rather than the packages from opensource.apple.com,
because the packages from Apple have decidely non-intuitive build
systems, and require some hacking to get to build. This port, in
contrast, is simply built with:
CFLAGS='-mcpu=generic -mtune=generic' ./configure --target=x86_64-apple-darwin11
env MACOSX_DEPLOYMENT_TARGET=10.7 make
and the resulting x86_64-apple-darwin11-ld is renamed as 'ld' and
packaged up for automation's purposes.
However, since this linker is newer, it also produces bits of Mach-O
that our older build tools don't understand. Fortunately, we can pass
appropriate options to the linker to turn off generation of those Mach-O
bits.
Benjamin Smedberg
aleth
Nathan Froyd
Wes Kocher
Mike Shal
Ted Mielczarek