Re: Difficulties configuring LTO on macOS with clang

2019-07-16 Thread scott
Hmm, removing the path didn’t help either. I ended up defining the `LLVM_AR=/path/to/homebrew/llvm-ar` environment variable after installing clang from brew. I was worried that there would be problems using ar from a different version of the toolchain than the compiler, but things seem to have

Re: Difficulties configuring LTO on macOS with clang

2019-07-10 Thread Barry Scott
> On 10 Jul 2019, at 15:25, Scott Colby wrote: > > Unfortunately that path is absent on my system. Could the issue be that the > llvm version of ar is not present at all on macOS? What remains confusing in > that case is that by using CC=cc (and I assume just ar) the LTO compilation > succe

Re: Difficulties configuring LTO on macOS with clang

2019-07-10 Thread Scott Colby
Unfortunately that path is absent on my system. Could the issue be that the llvm version of ar is not present at all on macOS? What remains confusing in that case is that by using CC=cc (and I assume just ar) the LTO compilation succeeds, despite cc being a symlink to clang anyway. Thanks, Scot

Re: Difficulties configuring LTO on macOS with clang

2019-07-09 Thread Barry Scott
> On 9 Jul 2019, at 19:28, Scott Colby wrote: > > Hello all, > > I am having difficulty building Python with `--with-lto` on macOS 10.14.5. > With a clean checkout of the CPython source at the tagged release for 3.7.4, > I ran: > > $ ./configure --prefix=/opt/python3.7.4 --enable-optimizat