Stefan Frijters
Posted in reply to Johannes Pfau
| Hi Johannes,
Thank you for the feedback. I've posted some more below so we can try to find out what I'm doing wrong. I've added some blank lines here and there to make things more readable, but it's all very spammy I'm afraid.
On Friday, 20 September 2019 at 17:18:20 UTC, Johannes Pfau wrote:
> Hi Stefan,
>
> Am Fri, 20 Sep 2019 10:29:10 +0000 schrieb Stefan Frijters:
>
>> As a fan of both D and the nixpkgs package manager I wanted to try and help include GDC in nixpkgs, but I have been running into some problems.
>>
>
> Thank you a lot for looking at this and helping the D ecosystem!
>
>> If anyone could help by taking a look at my pull request at https://github.com/NixOS/nixpkgs/pull/69144 that would be greatly appreciated.
>>
>> Current issues include:
>> * I have disabled bootstrapping for now to speed up the debugging process, hopefully it can be enabled again later on.
>>
>> I have taken the compiler flags to be used from https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=gdc-git, which was linked in another thread on this forum, but maybe this is too specific for Arch?
>
> Yes, these are actually arch and not gdc specific. You do not need any special flags for gdc, just add d to --enable-languages= and you should be fine. --with-target-system-zlib=yes is the only D specific flag in your github pull request, and it forces libphobos to link against the system zlib instead of including a copy. You'll have to decide whether this is the behavior you want.
Ok, I actually started out with only adding d as an enabled language, but then I just started adding other flags hoping that they would to the trick and at least let the build get to the end. --with-target-system-zlib=yes seems to be necessary though for my situation.
This is what I get from config.log if I remove all the extra flags (except --disable-shared and --disable-bootstrap), but keeping whatever nixpkgs gives me by default:
$ ../gcc-9.2.0/configure --prefix=/nix/store/crh7b7jill2hh8gg1i59i34qvmiq2mfa-gdc-9.2.0 --with-gmp-include=/nix/store/jljw9i7377gi55gbnipsqanqirdzs41p-gmp-6.1.2-dev/include --with-gmp-lib=/nix/store/j2p1qjbajqfb95ba3dqgjbsknipknikk-gmp-6.1.2/lib --with-mpfr-include=/nix/store/676gyak02v4zsgjx23f5arhlnd3j02ny-mpfr-4.0.2-dev/include --with-mpfr-lib=/nix/store/n5m42hdi36gn9yvbcjyihj4fxjn9bgjf-mpfr-4.0.2/lib --with-mpc=/nix/store/4abiapxk8wng6viks962wyr3ag04xnz4-libmpc-1.1.0 --with-libelf=/nix/store/hgx581smqcl2zi76lqzyk1j9pv8cf85p-libelf-0.8.13 --with-native-system-header-dir=/nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include --enable-lto --disable-libstdcxx-pch --without-included-gettext --with-system-zlib --enable-static --enable-languages=d --disable-multilib --enable-plugin --with-isl=/nix/store/wak0rkw1xvpzh01hk9a77h56cx2czhgi-isl-0.17.1 --disable-bootstrap --with-target-system-zlib=yes --disable-shared --build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu
Does any of that look weird to you?
And just to check: is it okay to build GDC9 with GCC8, or should I use GCC9?
>> * When compiling without forcing --disable-shared, there are linker errors about needing to compile with -fPIC. It seems that some files are built using that flag, but not all, and I'm not sure how to go about forcing it for the rest.
>
> This should not happen, -fPIC should be added automatically where required. Maybe it's caused by --enable-default-pie or any of the other flags which are not really needed?
Without all the other flags I still get this problem (it was pretty much the reason I started adding things in the first place). Does this mean it's 'just' libphobos itself that's missing the -fPIC flag?
libtool: link: /build/build/./gcc/gdc -B/build/build/./gcc/ -O2 -I/nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -B/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib/ -idirafter /nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -idirafter /nix/store/pcs8pq4a5rkym1hzibqz7da45fxkmig7-gcc-8.3.0/lib/gcc/x86_64-unknown-linux-gnu/8.3.0/include-fixed -Wl,-rpath,/nix/store/dwmw9jilsa5fmvpj1z568kxbnchzyvx2-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -shared -fversion=Shared core/.libs/atomic.o core/.libs/attribute.o core/.libs/bitop.o core/.libs/checkedint.o core/.libs/cpuid.o core/.libs/demangle.o core/.libs/exception.o core/internal/.libs/abort.o core/internal/.libs/arrayop.o core/internal/.libs/convert.o core/internal/.libs/hash.o core/internal/.libs/spinlock.o core/internal/.libs/string.o core/internal/.libs/traits.o core/.libs/math.o core/.libs/memory.o core/.libs/runtime.o core/.libs/simd.o core/stdc/.libs/assert_.o core/stdc/.libs/complex.o core/stdc/.libs/config.o core/stdc/.libs/ctype.o core/stdc/.libs/errno.o core/stdc/.libs/fenv.o core/stdc/.libs/float_.o core/stdc/.libs/inttypes.o core/stdc/.libs/limits.o core/stdc/.libs/locale.o core/stdc/.libs/math.o core/stdc/.libs/signal.o core/stdc/.libs/stdarg.o core/stdc/.libs/stddef.o core/stdc/.libs/stdint.o core/stdc/.libs/stdio.o core/stdc/.libs/stdlib.o core/stdc/.libs/string.o core/stdc/.libs/tgmath.o core/stdc/.libs/time.o core/stdc/.libs/wchar_.o core/stdc/.libs/wctype.o core/sync/.libs/barrier.o core/sync/.libs/condition.o core/sync/.libs/config.o core/sync/.libs/exception.o core/sync/.libs/mutex.o core/sync/.libs/rwmutex.o core/sync/.libs/semaphore.o core/.libs/thread.o core/.libs/time.o core/.libs/vararg.o gcc/.libs/attribute.o gcc/.libs/backtrace.o gcc/.libs/builtins.o gcc/.libs/deh.o gcc/.libs/emutls.o gcc/.libs/gthread.o gcc/sections/.libs/android.o gcc/sections/.libs/elf_shared.o gcc/sections/.libs/osx.o gcc/sections/.libs/package.o gcc/sections/.libs/win32.o gcc/sections/.libs/win64.o gcc/unwind/.libs/arm.o gcc/unwind/.libs/arm_common.o gcc/unwind/.libs/c6x.o gcc/unwind/.libs/generic.o gcc/unwind/.libs/package.o gcc/unwind/.libs/pe.o .libs/object.o rt/.libs/aApply.o rt/.libs/aApplyR.o rt/.libs/aaA.o rt/.libs/adi.o rt/.libs/arrayassign.o rt/.libs/arraycast.o rt/.libs/arraycat.o rt/.libs/cast_.o rt/.libs/config.o rt/.libs/critical_.o rt/.libs/deh.o rt/.libs/dmain2.o rt/.libs/invariant.o rt/.libs/lifetime.o rt/.libs/memory.o rt/.libs/minfo.o rt/.libs/monitor_.o rt/.libs/obj.o rt/.libs/qsort.o rt/.libs/sections.o rt/.libs/switch_.o rt/.libs/tlsgc.o rt/typeinfo/.libs/ti_Acdouble.o rt/typeinfo/.libs/ti_Acfloat.o rt/typeinfo/.libs/ti_Acreal.o rt/typeinfo/.libs/ti_Adouble.o rt/typeinfo/.libs/ti_Afloat.o rt/typeinfo/.libs/ti_Ag.o rt/typeinfo/.libs/ti_Aint.o rt/typeinfo/.libs/ti_Along.o rt/typeinfo/.libs/ti_Areal.o rt/typeinfo/.libs/ti_Ashort.o rt/typeinfo/.libs/ti_C.o rt/typeinfo/.libs/ti_byte.o rt/typeinfo/.libs/ti_cdouble.o rt/typeinfo/.libs/ti_cent.o rt/typeinfo/.libs/ti_cfloat.o rt/typeinfo/.libs/ti_char.o rt/typeinfo/.libs/ti_creal.o rt/typeinfo/.libs/ti_dchar.o rt/typeinfo/.libs/ti_delegate.o rt/typeinfo/.libs/ti_double.o rt/typeinfo/.libs/ti_float.o rt/typeinfo/.libs/ti_idouble.o rt/typeinfo/.libs/ti_ifloat.o rt/typeinfo/.libs/ti_int.o rt/typeinfo/.libs/ti_ireal.o rt/typeinfo/.libs/ti_long.o rt/typeinfo/.libs/ti_n.o rt/typeinfo/.libs/ti_ptr.o rt/typeinfo/.libs/ti_real.o rt/typeinfo/.libs/ti_short.o rt/typeinfo/.libs/ti_ubyte.o rt/typeinfo/.libs/ti_ucent.o rt/typeinfo/.libs/ti_uint.o rt/typeinfo/.libs/ti_ulong.o rt/typeinfo/.libs/ti_ushort.o rt/typeinfo/.libs/ti_void.o rt/typeinfo/.libs/ti_wchar.o rt/util/.libs/array.o rt/util/container/.libs/array.o rt/util/container/.libs/common.o rt/util/container/.libs/hashtab.o rt/util/container/.libs/treap.o rt/util/.libs/random.o rt/util/.libs/typeinfo.o rt/util/.libs/utf.o core/stdc/.libs/libgdruntime_la-errno_.o gc/.libs/bits.o gc/.libs/config.o gc/.libs/gcinterface.o gc/impl/conservative/.libs/gc.o gc/impl/manual/.libs/gc.o gc/.libs/os.o gc/.libs/pooltable.o gc/.libs/proxy.o core/sys/posix/.libs/aio.o core/sys/posix/arpa/.libs/inet.o core/sys/posix/.libs/config.o core/sys/posix/.libs/dirent.o core/sys/posix/.libs/dlfcn.o core/sys/posix/.libs/fcntl.o core/sys/posix/.libs/grp.o core/sys/posix/.libs/iconv.o core/sys/posix/.libs/inttypes.o core/sys/posix/.libs/libgen.o core/sys/posix/.libs/mqueue.o core/sys/posix/net/.libs/if_.o core/sys/posix/.libs/netdb.o core/sys/posix/netinet/.libs/in_.o core/sys/posix/netinet/.libs/tcp.o core/sys/posix/.libs/poll.o core/sys/posix/.libs/pthread.o core/sys/posix/.libs/pwd.o core/sys/posix/.libs/sched.o core/sys/posix/.libs/semaphore.o core/sys/posix/.libs/setjmp.o core/sys/posix/.libs/signal.o core/sys/posix/.libs/spawn.o core/sys/posix/.libs/stdio.o core/sys/posix/.libs/stdlib.o core/sys/posix/sys/.libs/filio.o core/sys/posix/sys/.libs/ioccom.o core/sys/posix/sys/.libs/ioctl.o core/sys/posix/sys/.libs/ipc.o core/sys/posix/sys/.libs/mman.o core/sys/posix/sys/.libs/msg.o core/sys/posix/sys/.libs/resource.o core/sys/posix/sys/.libs/select.o core/sys/posix/sys/.libs/shm.o core/sys/posix/sys/.libs/socket.o core/sys/posix/sys/.libs/stat.o core/sys/posix/sys/.libs/statvfs.o core/sys/posix/sys/.libs/time.o core/sys/posix/sys/.libs/ttycom.o core/sys/posix/sys/.libs/types.o core/sys/posix/sys/.libs/uio.o core/sys/posix/sys/.libs/un.o core/sys/posix/sys/.libs/utsname.o core/sys/posix/sys/.libs/wait.o core/sys/posix/.libs/syslog.o core/sys/posix/.libs/termios.o core/sys/posix/.libs/time.o core/sys/posix/.libs/ucontext.o core/sys/posix/.libs/unistd.o core/sys/posix/.libs/utime.o core/sys/linux/.libs/config.o core/sys/linux/.libs/dlfcn.o core/sys/linux/.libs/elf.o core/sys/linux/.libs/epoll.o core/sys/linux/.libs/errno.o core/sys/linux/.libs/execinfo.o core/sys/linux/.libs/fcntl.o core/sys/linux/.libs/ifaddrs.o core/sys/linux/.libs/link.o core/sys/linux/netinet/.libs/in_.o core/sys/linux/netinet/.libs/tcp.o core/sys/linux/.libs/sched.o core/sys/linux/.libs/stdio.o core/sys/linux/sys/.libs/auxv.o core/sys/linux/sys/.libs/eventfd.o core/sys/linux/sys/.libs/file.o core/sys/linux/sys/.libs/inotify.o core/sys/linux/sys/.libs/mman.o core/sys/linux/sys/netinet/.libs/tcp.o core/sys/linux/sys/.libs/prctl.o core/sys/linux/sys/.libs/signalfd.o core/sys/linux/sys/.libs/socket.o core/sys/linux/sys/.libs/sysinfo.o core/sys/linux/sys/.libs/time.o core/sys/linux/sys/.libs/xattr.o core/sys/linux/.libs/termios.o core/sys/linux/.libs/time.o core/sys/linux/.libs/timerfd.o core/sys/linux/.libs/tipc.o core/sys/linux/.libs/unistd.o config/x86/.libs/libgdruntime_la-switchcontext.o gcc/.libs/config.o gcc/.libs/libbacktrace.o -Wl,--whole-archive ../../libatomic/.libs/libatomic_convenience.a ../../libbacktrace/.libs/libbacktrace.a -Wl,--no-whole-archive -lm -lpthread -ldl -lz -Wl,-rpath -Wl,/nix/store/dwmw9jilsa5fmvpj1z568kxbnchzyvx2-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/dwmw9jilsa5fmvpj1z568kxbnchzyvx2-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -nophoboslib -dstartfiles -B../src -Bgcc -Wl,-rpath -Wl,/nix/store/dwmw9jilsa5fmvpj1z568kxbnchzyvx2-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -pthread -Wl,-soname -Wl,libgdruntime.so.76 -o .libs/libgdruntime.so.76.0.3
/nix/store/cl1i6bfqnx48ipakj4px7pb1babzs23j-binutils-2.31.1/bin/ld: core/.libs/atomic.o: relocation R_X86_64_32S against hidden symbol `gdc.dso_slot' can not be used when making a shared object
/nix/store/cl1i6bfqnx48ipakj4px7pb1babzs23j-binutils-2.31.1/bin/ld: core/.libs/attribute.o: relocation R_X86_64_32S against hidden symbol `gdc.dso_slot' can not be used when making a shared object
/nix/store/cl1i6bfqnx48ipakj4px7pb1babzs23j-binutils-2.31.1/bin/ld: core/.libs/bitop.o: relocation R_X86_64_32 against `.rodata.str1.8' can not be used when making a shared object; recompile with -fPIC
/nix/store/cl1i6bfqnx48ipakj4px7pb1babzs23j-binutils-2.31.1/bin/ld: core/.libs/checkedint.o: relocation R_X86_64_32S against hidden symbol `gdc.dso_slot' can not be used when making a shared object
/nix/store/cl1i6bfqnx48ipakj4px7pb1babzs23j-binutils-2.31.1/bin/ld: core/.libs/cpuid.o: relocation R_X86_64_32S against symbol `_D4core5cpuid18getcacheinfoCPUID2FNbNiNeZ14decipherCpuid2MFNbNihZ3idsyG63h' can not be used when making a shared object; recompile with -fPIC
/nix/store/cl1i6bfqnx48ipakj4px7pb1babzs23j-binutils-2.31.1/bin/ld: core/.libs/demangle.o: relocation R_X86_64_32 against symbol `_D11TypeInfo_xm6__initZ' can not be used when making a shared object; recompile with -fPIC
/nix/store/cl1i6bfqnx48ipakj4px7pb1babzs23j-binutils-2.31.1/bin/ld: core/.libs/exception.o: relocation R_X86_64_32 against symbol `_D12TypeInfo_Aya6__initZ' can not be used when making a shared object; recompile with -fPIC
/nix/store/cl1i6bfqnx48ipakj4px7pb1babzs23j-binutils-2.31.1/bin/ld: core/internal/.libs/abort.o: relocation R_X86_64_32S against `.rodata' can not be used when making a shared object; recompile with -fPIC
[... and some more screens of similar errors ... ]
Looks like the shared version is getting -fversion=Shared, but not -fPIC:
/nix/store/l6h4ya0wzb4b8mr0y58k2gh2nhfql4sn-bash-4.4-p23/bin/bash ../libtool --tag=D --mode=compile /build/build/./gcc/gdc -B/build/build/./gcc/ -O2 -I/nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -B/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib/ -idirafter /nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -idirafter /nix/store/pcs8pq4a5rkym1hzibqz7da45fxkmig7-gcc-8.3.0/lib/gcc/x86_64-unknown-linux-gnu/8.3.0/include-fixed -Wl,-rpath,/nix/store/dwmw9jilsa5fmvpj1z568kxbnchzyvx2-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -O2 -g -nostdinc -I ../../../../gcc-9.2.0/libphobos/libdruntime -I . -c -o core/sys/linux/sys/socket.lo ../../../../gcc-9.2.0/libphobos/libdruntime/core/sys/linux/sys/socket.d
libtool: compile: /build/build/./gcc/gdc -B/build/build/./gcc/ -O2 -I/nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -B/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib/ -idirafter /nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -idirafter /nix/store/pcs8pq4a5rkym1hzibqz7da45fxkmig7-gcc-8.3.0/lib/gcc/x86_64-unknown-linux-gnu/8.3.0/include-fixed -Wl,-rpath,/nix/store/dwmw9jilsa5fmvpj1z568kxbnchzyvx2-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -O2 -g -nostdinc -I ../../../../gcc-9.2.0/libphobos/libdruntime -I . -c ../../../../gcc-9.2.0/libphobos/libdruntime/core/sys/linux/sys/socket.d -fversion=Shared
d21: warning: command line option '-idirafter /nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include' is valid for C/C++/Fortran/ObjC/ObjC++ but not for D
d21: warning: command line option '-idirafter /nix/store/pcs8pq4a5rkym1hzibqz7da45fxkmig7-gcc-8.3.0/lib/gcc/x86_64-unknown-linux-gnu/8.3.0/include-fixed' is valid for C/C++/Fortran/ObjC/ObjC++ but not for D
libtool: compile: mv -f "socket.o" "core/sys/linux/sys/.libs/socket.o"
libtool: compile: /build/build/./gcc/gdc -B/build/build/./gcc/ -O2 -I/nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -B/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib/ -idirafter /nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -idirafter /nix/store/pcs8pq4a5rkym1hzibqz7da45fxkmig7-gcc-8.3.0/lib/gcc/x86_64-unknown-linux-gnu/8.3.0/include-fixed -Wl,-rpath,/nix/store/dwmw9jilsa5fmvpj1z568kxbnchzyvx2-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -O2 -g -nostdinc -I ../../../../gcc-9.2.0/libphobos/libdruntime -I . -c ../../../../gcc-9.2.0/libphobos/libdruntime/core/sys/linux/sys/socket.d >/dev/null 2>&1
libtool: compile: mv -f "socket.o" "core/sys/linux/sys/socket.o"
>> * When invoking nix-build without specifying --cores 1 there are problems when building libphobos; it looks like object files are moved before they are generated. This problem goes away when I build on a single core, but of course everything takes a very long time to try out.
>
> Is this a problem during the make step or during make install? I don't think make install is multi-thread safe, but make should actually be fine.
It's happening during an invocation of libtool - pasted an example of lines grepped for time\.[od] below, but I've seen it happen for other files as well (e.g. array.o). Also note that in the example for socket.o above, which was built using a single core, the compile / mv steps are nicely interleaved, unlike below:
/nix/store/l6h4ya0wzb4b8mr0y58k2gh2nhfql4sn-bash-4.4-p23/bin/bash ../libtool --tag=D --mode=compile /build/build/./gcc/gdc -B/build/build/./gcc/ -O2 -I/nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -B/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib/ -idirafter /nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -idirafter /nix/store/pcs8pq4a5rkym1hzibqz7da45fxkmig7-gcc-8.3.0/lib/gcc/x86_64-unknown-linux-gnu/8.3.0/include-fixed -Wl,-rpath,/nix/store/1cfsf8mqph03gz3r9qh9fbqv99vdg0dy-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -O2 -g -nostdinc -I ../../../../gcc-9.2.0/libphobos/libdruntime -I . -c -o core/sys/linux/sys/time.lo ../../../../gcc-9.2.0/libphobos/libdruntime/core/sys/linux/sys/time.d
/nix/store/l6h4ya0wzb4b8mr0y58k2gh2nhfql4sn-bash-4.4-p23/bin/bash ../libtool --tag=D --mode=compile /build/build/./gcc/gdc -B/build/build/./gcc/ -O2 -I/nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -B/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib/ -idirafter /nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -idirafter /nix/store/pcs8pq4a5rkym1hzibqz7da45fxkmig7-gcc-8.3.0/lib/gcc/x86_64-unknown-linux-gnu/8.3.0/include-fixed -Wl,-rpath,/nix/store/1cfsf8mqph03gz3r9qh9fbqv99vdg0dy-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -O2 -g -nostdinc -I ../../../../gcc-9.2.0/libphobos/libdruntime -I . -c -o core/sys/linux/time.lo ../../../../gcc-9.2.0/libphobos/libdruntime/core/sys/linux/time.d
libtool: compile: /build/build/./gcc/gdc -B/build/build/./gcc/ -O2 -I/nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -B/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib/ -idirafter /nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -idirafter /nix/store/pcs8pq4a5rkym1hzibqz7da45fxkmig7-gcc-8.3.0/lib/gcc/x86_64-unknown-linux-gnu/8.3.0/include-fixed -Wl,-rpath,/nix/store/1cfsf8mqph03gz3r9qh9fbqv99vdg0dy-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -O2 -g -nostdinc -I ../../../../gcc-9.2.0/libphobos/libdruntime -I . -c ../../../../gcc-9.2.0/libphobos/libdruntime/core/sys/linux/sys/time.d
libtool: compile: /build/build/./gcc/gdc -B/build/build/./gcc/ -O2 -I/nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -B/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib/ -idirafter /nix/store/7b67hqgxavm47qizrkya55qvyp1f65s4-glibc-2.27-dev/include -idirafter /nix/store/pcs8pq4a5rkym1hzibqz7da45fxkmig7-gcc-8.3.0/lib/gcc/x86_64-unknown-linux-gnu/8.3.0/include-fixed -Wl,-rpath,/nix/store/1cfsf8mqph03gz3r9qh9fbqv99vdg0dy-gdc-9.2.0-lib/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-rpath -Wl,/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -Wl,-L/nix/store/6yaj6n8l925xxfbcd65gzqx3dz7idrnn-glibc-2.27/lib -O2 -g -nostdinc -I ../../../../gcc-9.2.0/libphobos/libdruntime -I . -c ../../../../gcc-9.2.0/libphobos/libdruntime/core/sys/linux/time.d
libtool: compile: mv -f "time.o" "core/sys/linux/sys/time.o"
libtool: compile: mv -f "time.o" "core/sys/linux/time.o"
mv: cannot stat 'time.o': No such file or directory
This is particulary annoying since I have a 16-core Ryzen so I lose a *lot* of time debugging with a single core...
Thanks for helping!
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