Thank you very much for your response. I apologize for being imprecise.
1. The computer is a 2020 MacBook Air m1 and the operating system is MacOS 12.3. However, I have the same problem on a 2013 Intel MacBook Pro running MacOS 11.6.5. 2. The code is a Fortran code that I compiled using gfortran. The code solves partial differential equations for scientific modeling. 3. The basic problem is that the code has large static arrays so the static storage exceeds 4 GBytes. It seems odd to me that a modern 64bit computer and operating system is limited to 32bit addressing for arrays. 4. I had found the URLs you listed in your email but I didn’t find them helpful. That could certainly be because I didn’t fully understand them. My limitation. Many thanks for your reply anyway. Much appreciated. Best regards. Alan > #64896: gcc and gcc-devel run fails libSystem.B.dylib not found > -----------------------------+-------------------- > Reporter: AlanTAMU | Owner: (none) > Type: defect | Status: new > Priority: Normal | Milestone: > Component: ports | Version: > Resolution: | Keywords: > Port: ggc, gcc-devel | > -----------------------------+-------------------- > Changes (by ryandesign): > > * keywords: libSystem.B.dylib => > > > Old description: > >> dyld[93269]: dyld cache '/System/Library/dyld/dyld_shared_cache_arm64e' >> not loaded: syscall to map cache into shared region failed >> dyld[93269]: Library not loaded: /usr/lib/libSystem.B.dylib >> Referenced from: /Users/alan/bench/lapack-test/a.out >> Reason: tried: '/usr/lib/libSystem.B.dylib' (no such file), >> '/usr/local/lib/libSystem.B.dylib' (no such file) > > New description: > > {{{ > dyld[93269]: dyld cache '/System/Library/dyld/dyld_shared_cache_arm64e' > not loaded: syscall to map cache into shared region failed > dyld[93269]: Library not loaded: /usr/lib/libSystem.B.dylib > Referenced from: /Users/alan/bench/lapack-test/a.out > Reason: tried: '/usr/lib/libSystem.B.dylib' (no such file), > '/usr/local/lib/libSystem.B.dylib' (no such file) > }}} > > -- > > What version of macOS? What version of Xcode? What computer? Have you > searched for this error message? Here are some results I found; maybe they > are relevant to you: > > * https://developer.apple.com/forums/thread/697494 > * https://developer.apple.com/forums/thread/669533 > > -- > Ticket URL: <https://trac.macports.org/ticket/64896#comment:1> > MacPorts <https://www.macports.org/> > Ports system for macOS Alan Needleman alan6...@gmail.com