Does setting MACOSX_DEPLOYMENT_TARGET also work? Satish
On Mon, 15 Feb 2021, Jacob Faibussowitsch wrote: > I think this problem ultimately stems from the fact that gcc/g++ and gfortran > are not from the same people on macOS. It seems like clang is configured to > build for 11.0 target, whilst gcc defaults to newest available target. And > indeed if I change my compile command there is no warning: > > mkdir -p build && gfortran -c -o ./build/conftest.o conftest.F90 && gcc-10 -o > ./build/libconftest.dylib ./build/conftest.o -dynamiclib -undefined > dynamic_lookup && rm -rf ./build > > Note I now call gcc-10 as the linker which is the __actual__ gcc (not clang > in a trench coat). > > Best regards, > > Jacob Faibussowitsch > (Jacob Fai - booss - oh - vitch) > Cell: (312) 694-3391 > > > On Feb 15, 2021, at 11:46, Jacob Faibussowitsch <[email protected]> wrote: > > > > Ok so if I pass -mmacosx-version-min=11.2 to the linker the warning > > disappears... > > > > Best regards, > > > > Jacob Faibussowitsch > > (Jacob Fai - booss - oh - vitch) > > Cell: (312) 694-3391 > > > >> On Feb 15, 2021, at 11:41, Jacob Faibussowitsch <[email protected] > >> <mailto:[email protected]>> wrote: > >> > >> I can reproduce the warning compiling just that simple code you listed. > >> This is the compile command: > >> > >> mkdir -p build && gfortran -c -o ./build/conftest.o conftest.F90 && gcc -o > >> ./build/libconftest.dylib ./build/conftest.o -dynamiclib -undefined > >> dynamic_lookup && rm -rf ./build > >> > >> And error: > >> ld: warning: object file (./build/conftest.o) was built for newer macOS > >> version (11.2) than being linked (11.0) > >> > >> Note I recently uninstalled and reinstalled command line tools too, which > >> does not seem to have fixed it. > >> > >> Best regards, > >> > >> Jacob Faibussowitsch > >> (Jacob Fai - booss - oh - vitch) > >> Cell: (312) 694-3391 > >> > >>> On Feb 15, 2021, at 11:30, Satish Balay <[email protected] > >>> <mailto:[email protected]>> wrote: > >>> > >>> Here is the compile command and the warning: > >>> > >>>>>>>>> > >>> ===== Checking linker > >>> Executing: gfortran -c -o > >>> /var/folders/9w/7dlszmmn6q1gd5yf3r9n79bc0000gn/T/petsc-dk9aiv7x/config.setCompilers/conftest.o > >>> > >>> -I/var/folders/9w/7dlszmmn6q1gd5yf3r9n79bc0000gn/T/petsc-dk9aiv7x/config.setCompilers > >>> > >>> /var/folders/9w/7dlszmmn6q1gd5yf3r9n79bc0000gn/T/petsc-dk9aiv7x/config.setCompilers/conftest.F90 > >>> > >>> Successful compile: > >>> Source: > >>> function foo(a) > >>> real:: a,x,bar > >>> common /xx/ x > >>> x=a > >>> foo = bar(x) > >>> end > >>> Executing: gcc -o > >>> /var/folders/9w/7dlszmmn6q1gd5yf3r9n79bc0000gn/T/petsc-dk9aiv7x/config.setCompilers/libconftest.dylib > >>> -dynamiclib -single_module -undefined dynamic_lookup -multiply_defined > >>> suppress > >>> /var/folders/9w/7dlszmmn6q1gd5yf3r9n79bc0000gn/T/petsc-dk9aiv7x/config.setCompilers/conftest.o > >>> > >>> Possible ERROR while running linker: > >>> stderr: > >>> ld: warning: object file > >>> (/var/folders/9w/7dlszmmn6q1gd5yf3r9n79bc0000gn/T/petsc-dk9aiv7x/config.setCompilers/conftest.o) > >>> was built for newer macOS version (11.2) than being linked (11.0) > >>> Accepted FC PIC code without compiler flag > >>> > >>> ============================================================================================= > >>> <<<<<< > >>> > >>> Its likely due to the way brew built gfortran. You can try compiling a > >>> simple test code and see if you can reproduce this warning. > >>> > >>> There is a related issue at: > >>> > >>> https://github.com/spack/spack/issues/21644 > >>> <https://github.com/spack/spack/issues/21644> > >>> > >>> Satish > >>> > >>> > >>> On Sat, 13 Feb 2021, Jacob Faibussowitsch wrote: > >>> > >>>> Hello All, > >>>> > >>>> I’ve been getting these warnings for weeks, at first I figured it was > >>>> due to gfortran brew package not being updated for Big Sur, but since it > >>>> has persisted through a few gfortran brew updates I’m thinking it may be > >>>> petsc related. This is on clean build on master. > >>>> > >>>> ld: warning: object file > >>>> (master-arch-darwin-c-debug/obj/sys/classes/bag/f2003-src/fsrc/bagenum.o) > >>>> was built for newer macOS version (11.2) than being linked (11.0) > >>>> ld: warning: object file > >>>> (master-arch-darwin-c-debug/obj/sys/f90-src/fsrc/f90_fwrap.o) was built > >>>> for newer macOS version (11.2) than being linked (11.0) > >>>> ld: warning: object file > >>>> (master-arch-darwin-c-debug/obj/sys/objects/f2003-src/fsrc/optionenum.o) > >>>> was built for newer macOS version (11.2) than being linked (11.0) > >>>> ld: warning: object file > >>>> (master-arch-darwin-c-debug/obj/sys/fsrc/somefort.o) was built for newer > >>>> macOS version (11.2) than being linked (11.0) > >>>> ld: warning: object file > >>>> (master-arch-darwin-c-debug/obj/sys/f90-mod/petscsysmod.o) was built for > >>>> newer macOS version (11.2) than being linked (11.0) > >>>> > >>>> Best regards, > >>>> > >>>> Jacob Faibussowitsch > >>>> (Jacob Fai - booss - oh - vitch) > >>>> Cell: (312) 694-3391 > >>>> > >> > > > >
