Dear Open MPI List, First, let me say I tried searching on this, but my google-fu and github-fu failed. To wit, this morning, my work Mac was updated to Clang 15:
❯ clang --version Apple clang version 15.0.0 (clang-1500.0.40.1) Target: arm64-apple-darwin22.6.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin ❯ xcodebuild -version Xcode 15.0 Build version 15A240d And I found things that used to work, didn't. So, time to rebuild my stack starting with Open MPI 4.1.5. Following what I did before, I run: ❯ ../configure --disable-wrapper-rpath --disable-wrapper-runpath \ CC=clang CXX=clang++ FC=gfortran-12 \ --prefix=$HOME/installed/Compiler/clang-gfortran-12/openmpi/4.1.5 |& tee configure.clang-gfortran-12.log Which uses clang and clang++ for C and C++ and gfortran-12 from brew as my FC. And when I do that I get: checking if .note.GNU-stack is needed... /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/objdump: error: 'conftest.o': Invalid/Unsupported object file format no checking suffix for labels... : checking prefix for global symbol labels... none configure: error: Could not determine global symbol label prefix I'm attaching a tar ball of the two log files. Note: I did try the same thing without "--disable-wrapper-rpath --disable-wrapper-runpath" (these flags I've had for a long time and, well, they work, so I keep using them), and I got the same error from configure. I tried the same thing with Open MPI 4.1.6rc2 and it failed the same, but Open MPI 5.0.0rc12 gets past this. I had to add: --with-hwloc=internal --with-libevent=internal --with-pmix=internal to my configure line because I guess these are now needed in Open MPI 5 and I guess configure couldn't see libevent from brew (?? I'm new to Open MPI 5, so I might get this wrong) Matt PS: The build threw a lot of: ld: warning: -dylib_file is deprecated. Use -F or -L to control where indirect dylibs are found so maybe Xcode changed that as well... -- Matt Thompson, SSAI, Ld Scientific Prog/Analyst/Super NASA GSFC, Global Modeling and Assimilation Office Code 610.1, 8800 Greenbelt Rd, Greenbelt, MD 20771 Phone: 301-614-6712 Fax: 301-614-6246 http://science.gsfc.nasa.gov/sed/bio/matthew.thompson
clang-15-gfortran-12-4.1.5.tar.bz2
Description: clang-15-gfortran-12-4.1.5.tar.bz2
