search for: cmake_osx_sysroot

----- Original Message ----- > From: "Renato Golin" <renato.golin at linaro.org> > To: "Hal Finkel" <hfinkel at anl.gov> > Cc: "LLVM Dev" <llvmdev at cs.uiuc.edu>, "jroelofs" <jonathan at codesourcery.com>, "Tobias Grosser" <tobias at grosser.es>, > "David Chisnall" <David.Chisnall at

How is -mmacosx-version-min=10.9 being set? LLVM_COMPILE_FLAGS? Or CMAKE_CXX_COMPILE? > On May 2, 2018, at 19:22, Vedant Kumar via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > I described this off-list to Zac, but for anyone else who is following, simply specifying the target triple is not enough to have the build system set an older macOS deployment target. I.e the 6.0.0-rc1

...ht and started playing with trying > to use the new CMake features to make the compiler-rt build better. What I > found was disappointing. > > Turns out CMAKE_SYSROOT is (IMO) actually a pretty broken option. It only > controls the --sysroot compiler flag. Also, oddly enough the > CMAKE_OSX_SYSROOT flag (which I think is poorly named) controls -isysroot. > The core problem here is that neither of these options really provides a > portable interface for cross compilation. What you really want is a flag > that can specify --sysroot (and maybe -isysroot) for gcc, -isysroot for > clan...

I described this off-list to Zac, but for anyone else who is following, simply specifying the target triple is not enough to have the build system set an older macOS deployment target. I.e the 6.0.0-rc1 binaries I've just uploaded have the same deployment target problem. Looking at the 5.0.0 and 6.0.0-rc1 binaries, I can confirm that their deployment target was too new: Load command 9