I updated the ports. looked allright (reply was "nothing to upgrade"), but the same problem: "ld: library not found for -lSystem"
I also checked for the ld64 port and the reply was: "The following ports are currently installed: ld64 @3_1+ld64_xcode (active)" Any other suggestions? Hans ________________________________________ From: macports-users <macports-users-boun...@lists.macports.org> on behalf of Chris Jones <jon...@hep.phy.cam.ac.uk> Sent: Wednesday, October 23, 2019 10:27 AM To: email@example.com Subject: Re: executing gcc9 on macOS 10.14 Hi, One other comment. What version of the ld64 port do you have installed ? If it is not using the xcode variant, then please reinstall in using that > port installed ld64 The following ports are currently installed: ld64 @3_1+ld64_xcode (active) if you do not get the above, run > sudo port -f uninstall ld64 > sudo port install ld64 Chris On 23/10/2019 9:21 am, Chris Jones wrote: > Hi, > > ( Please always reply to the list ) > > The error below looks like one we addressed recently. Have you updated > your ports ? Please run > > > sudo port sync > > sudo port upgrade outdated > > then try again. > > Chris > > > On 23/10/2019 9:17 am, Hans Goedbloed wrote: >> Thanks Chris, >> >> Looks like what I hoped for: no other tools than gcc9 needed. >> However, when I do precisely what you said, I still get >> >> hanss-imac:resabs hansgoedbloed$ gfortran-mp-9 -o test.exe ./test.f >> ld: library not found for -lSystem >> collect2: error: ld returned 1 exit status >> >> All the libraries listed from your otool command are there, except >> /usr/lib/libSystem.B.dylib. >> Could that be the problem? >> >> Hans >> >> ________________________________________ >> From: macports-users <macports-users-boun...@lists.macports.org> on >> behalf of Chris Jones <jon...@hep.phy.cam.ac.uk> >> Sent: Tuesday, October 22, 2019 7:09 PM >> To: firstname.lastname@example.org >> Subject: Re: executing gcc9 on macOS 10.14 >> >> Hi, >> >> Your ld command is incomplete. You aren't passing any of the runtime >> libraries needed to link the .o file into an executable. >> >> The simplest approach is to let gcc do the full job. >> >> Titan ~/Documents/Code > cat test.f >> program hello >> print *, "Hello World!" >> end program hello >> Titan ~/Documents/Code > gfortran-mp-9 -o test.exe ./test.f >> Titan ~/Documents/Code > ./test.exe >> Hello World! >> >> Titan ~/Documents/Code > otool -L ./test.exe >> ./test.exe: >> /opt/local/lib/libgcc/libgfortran.5.dylib (compatibility >> version 6.0.0, >> current version 6.0.0) >> /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current >> version 1252.200.5) >> /opt/local/lib/libgcc/libgcc_s.1.dylib (compatibility version >> 1.0.0, >> current version 1.0.0) >> /opt/local/lib/libgcc/libquadmath.0.dylib (compatibility >> version 1.0.0, >> current version 1.0.0) >> >> Chris >> >> On 22/10/2019 5:41 pm, Hans Goedbloed wrote: >>> I have been using g95 for my fortran codes for many years, but it did >>> not work anymore after upgrading to macOS 10.14 Mojave. I was advised to >>> install gccc9 from MacPorts instead. This I did through "sudo port >>> selfupdate" and "sudo port install gcc9". >>> >>> This appeared to give all the required tools. When I then tried to >>> compile and execute the simplest fortran program test.f (the usual just >>> writing of the message "Hello") by first compiling >>> >>> /opt/local/bin/gfortran-mp-9 -v -c test.f >>> >>> giving the required object file test.o, and then loading: >>> >>> /opt/local/bin/ld -v test.o >>> >>> this resulted in the messages >>> >>> @(#)PROGRAM:ld PROJECT:ld64-512.4 >>> >>> BUILD 05:06:53 Aug 16 2019 >>> >>> configured to support archs: armv6 armv7 armv7s arm64 arm64e arm64_32 >>> i386 x86_64 x86_64h armv6m armv7k armv7m armv7em >>> >>> Library search paths: >>> >>> /usr/lib >>> >>> Framework search paths: >>> >>> /Library/Frameworks/ >>> >>> /System/Library/Frameworks/ >>> >>> Undefined symbols for architecture x86_64: >>> >>> "__gfortran_set_args", referenced from: >>> >>> _main in test.o >>> >>> "__gfortran_set_options", referenced from: >>> >>> _main in test.o >>> >>> "__gfortran_st_write", referenced from: >>> >>> _MAIN__ in test.o >>> >>> "__gfortran_st_write_done", referenced from: >>> >>> _MAIN__ in test.o >>> >>> ld: symbol(s) not found for architecture x86_64 >>> >>> I thought installation of gcc9 would include everything. How should I >>> fix this? >>> >>> >>> Hans >>> >>>