Bug 19801 – Linking error: ld: symbol(s) not found for architecture x86_64

I try to install the D REPL. After having done "dub fetch drepl" successfully, I do "dub run drepl". That job ends like this: drepl 0.2.1: building configuration "console"... Running pre-build commands... Linking... Undefined symbols for architecture x86_64: "__D6object__T10RTInfoImplVAmA2i48i60Z4datayG2m", referenced from: __D42TypeInfo_S3std7variant__T8VariantNVmi32ZQp6__initZ in libstdx-allocator.a(concurrency_103_72a.o) "__D6object__T10RTInfoImplVAmA2i80i961Z4datayG2m", referenced from: __D59TypeInfo_S3std11concurrency__T4ListTSQBbQBa7MessageZQw4Node6__initZ in libstdx-allocator.a(atomic_ef_466.o) "_rt_loadLibrary", referenced from: __D4core7runtime7Runtime__T11loadLibraryZQoFxAaZPv in drepl.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) Error: linker exited with status 1 /Library/D/dmd/bin/dmd failed with exit code 1. I have tried with both DMD64 D Compiler v2.085.0 and v2.085.1. I'm running macOS 10.14.4 (the latest).

That's probably an issue with drepl. Please report there. Thanks!

It may be so. The reason I thought it was more general, is I get a somewhat similar error when trying to build the websocket demo code found here: https://wiki.dlang.org/User:Csmith1991/Vibe.d_Documentation/websocket This is what I get: websocket_chat ~master: building configuration "application"... Linking... Undefined symbols for architecture x86_64: "_main", referenced from: implicit entry/start for main executable (maybe you meant: __d_main_args, __D4core6thread6Thread7sm_mainCQBcQBaQw , __D4core6thread16_mainThreadStoreG312v ) ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) Error: linker exited with status 1 /Library/D/dmd/bin/dmd failed with exit code 1.

Hmm, did this error occur when trying to build the websocket example from the Vibe.d source tree. What version of Vibe.d do you build?

(In reply to Seb from comment #3) > Hmm, did this error occur when trying to build the websocket example from > the Vibe.d source tree. What version of Vibe.d do you build? I tried both 0.8.5 and 0.8.6-alpha.1.

(In reply to Jon Kleiser from comment #4) > (In reply to Seb from comment #3) > > Hmm, did this error occur when trying to build the websocket example from > > the Vibe.d source tree. What version of Vibe.d do you build? > > I tried both 0.8.5 and 0.8.6-alpha.1. I may have misunderstood your question re. the Vibe.d source tree. I also did try the tiny hello.d (Hello Vibe.d) at code.dlang.org/packages/vibe-d. It ran, and was listening and responding on 8080, in spite of the yellow text in the log saying "Failed to listen on 0.0.0.0:8080".

Did you clone the vibe.d repository and go into the examples/websocket directory to run the websocket example or where did you get it from?

(In reply to Seb from comment #6) > Did you clone the vibe.d repository and go into the examples/websocket > directory to run the websocket example or where did you get it from? I have now cloned the vibe.d repo. The vibe.d/examples/websocket did build and run w/o problems. I also tried to dub build the vibe.d/examples/http_server, but that ended like this: http-server-example ~master: building configuration "application"... Linking... Undefined symbols for architecture x86_64: "__D6object__T10RTInfoImplVAmA2i104i1322ZQBbyG2m", referenced from: __D85TypeInfo_S4vibe4core4path__T11GenericPathTSQBhQBfQBd17WindowsPathFormatZQBs9PathRange6__initZ in http-server-example.o "__D6object__T10RTInfoImplVAmA2i224i33ZQzyG2m", referenced from: __D229TypeInfo_S9eventcore7drivers12threadedfile__T23ThreadedFileEventDriverHTCQClQCe5posix6even -------------- lots more ----------------- ntDriverHTCQClQCe5posix6events__T22PosixEventDriverEventsHTCQEiQEbQBx6kqueue15KqueueEventLoopHTCQFsQFlQDh7sockets__T23PosixEventDriverSocketsHTQDgZQBfZQEoZQGq__T7taskFunVAyaa4_72656164ThZQBaFNbNiNfCQJqQJjQJe__TQItHTQHxZQJcSQKp6driver6FileFDmAhZvTQBxTQBcTmTQpZQMh6__initZ in http-server-example.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) Error: linker exited with status 1 /Library/D/dmd/bin/dmd failed with exit code 1.

Hmm could it be that this is due to your installation as it looks like your linking with a different standard library than your source include paths have. How did you install D and could you check that DMD is using them correct standard library? You can see the imports and linker commands when compiling with -v (e.g. hello world).

(In reply to Seb from comment #8) > Hmm could it be that this is due to your installation as it looks like your > linking with a different standard library than your source include paths > have. > How did you install D and could you check that DMD is using them correct > standard library? > You can see the imports and linker commands when compiling with -v (e.g. > hello world). I installed using the installer, first dmd.2.085.0.dmg, then dmd.2.085.1.dmg. The same on three different Macs.

(In reply to Jon Kleiser from comment #9) > (In reply to Seb from comment #8) > > Hmm could it be that this is due to your installation as it looks like your > > linking with a different standard library than your source include paths > > have. > > How did you install D and could you check that DMD is using them correct > > standard library? > > You can see the imports and linker commands when compiling with -v (e.g. > > hello world). > > I installed using the installer, first dmd.2.085.0.dmg, then > dmd.2.085.1.dmg. The same on three different Macs. Here's the output from compiling "hello": $ dmd -v source/app.d predefs DigitalMars Posix OSX CppRuntime_Clang darwin LittleEndian D_Version2 all D_SIMD D_InlineAsm_X86_64 X86_64 D_LP64 D_PIC assert D_ModuleInfo D_Exceptions D_TypeInfo D_HardFloat D_ObjectiveC binary dmd version v2.085.1 config /usr/local/bin/dmd.conf DFLAGS -I/Library/D/dmd/src/phobos -I/Library/D/dmd/src/druntime/import -L-L/Library/D/dmd/lib parse app importall app import object (/Library/D/dmd/src/druntime/import/object.d) import core.attribute (/Library/D/dmd/src/druntime/import/core/attribute.d) import core.internal.hash (/Library/D/dmd/src/druntime/import/core/internal/hash.d) import core.internal.traits (/Library/D/dmd/src/druntime/import/core/internal/traits.d) import core.internal.convert (/Library/D/dmd/src/druntime/import/core/internal/convert.d) import std.stdio (/Library/D/dmd/src/phobos/std/stdio.d) import core.stdc.stddef (/Library/D/dmd/src/druntime/import/core/stdc/stddef.d) import core.stdc.stdio (/Library/D/dmd/src/druntime/import/core/stdc/stdio.d) import core.stdc.stdint (/Library/D/dmd/src/druntime/import/core/stdc/stdint.d) import core.stdc.config (/Library/D/dmd/src/druntime/import/core/stdc/config.d) import core.stdc.signal (/Library/D/dmd/src/druntime/import/core/stdc/signal.d) import core.stdc.wchar_ (/Library/D/dmd/src/druntime/import/core/stdc/wchar_.d) import core.stdc.stdarg (/Library/D/dmd/src/druntime/import/core/stdc/stdarg.d) import core.stdc.stdlib (/Library/D/dmd/src/druntime/import/core/stdc/stdlib.d) import core.stdc.time (/Library/D/dmd/src/druntime/import/core/stdc/time.d) import core.sys.posix.sys.types (/Library/D/dmd/src/druntime/import/core/sys/posix/sys/types.d) import core.sys.posix.config (/Library/D/dmd/src/druntime/import/core/sys/posix/config.d) import std.algorithm.mutation (/Library/D/dmd/src/phobos/std/algorithm/mutation.d) import std.traits (/Library/D/dmd/src/phobos/std/traits.d) import std.meta (/Library/D/dmd/src/phobos/std/meta.d) import std.functional (/Library/D/dmd/src/phobos/std/functional.d) import std.range.primitives (/Library/D/dmd/src/phobos/std/range/primitives.d) import std.typecons (/Library/D/dmd/src/phobos/std/typecons.d) import std.format (/Library/D/dmd/src/phobos/std/format.d) import core.vararg (/Library/D/dmd/src/druntime/import/core/vararg.d) import std.exception (/Library/D/dmd/src/phobos/std/exception.d) import std.internal.attributes (/Library/D/dmd/src/phobos/std/internal/attributes.d) semantic app import core.atomic (/Library/D/dmd/src/druntime/import/core/atomic.d) import core.stdc.errno (/Library/D/dmd/src/druntime/import/core/stdc/errno.d) entry main source/app.d semantic2 app semantic3 app import std.utf (/Library/D/dmd/src/phobos/std/utf.d) import core.internal.string (/Library/D/dmd/src/druntime/import/core/internal/string.d) import std.algorithm.comparison (/Library/D/dmd/src/phobos/std/algorithm/comparison.d) import core.stdc.string (/Library/D/dmd/src/druntime/import/core/stdc/string.d) code app function D main function std.stdio.writeln!string.writeln function std.stdio.File.LockingTextWriter.put!string.put function std.stdio.File.LockingTextWriter.put!string.put.__dgliteral2 function std.stdio.trustedFwrite!char.trustedFwrite function std.exception.enforce!(ErrnoException).enforce!int.enforce function std.exception.bailOut!(ErrnoException).bailOut function object.idup!(const(char)).idup function object._trustedDup!(const(char), immutable(char))._trustedDup function object._dup!(const(char), immutable(char))._dup function object._doPostblit!(immutable(char))._doPostblit function object._getPostblit!(immutable(char))._getPostblit function std.stdio.File.LockingTextWriter.put!(immutable(char)).put function std.stdio.File.LockingTextWriter.put!(immutable(char)).put.trustedFPUTC function std.stdio.File.LockingTextWriter.put!(immutable(char)).put.trustedFPUTWC function std.stdio.File.LockingTextWriter.put!char.put function std.stdio.File.LockingTextWriter.put!char.put.trustedFPUTC function std.stdio.File.LockingTextWriter.put!char.put.trustedFPUTWC cc app.o -o app -m64 -Xlinker -no_compact_unwind -L/Library/D/dmd/lib -lphobos2 -lpthread -lm The contents of my /usr/local/bin/dmd.conf is this: [Environment] DFLAGS=-I/Library/D/dmd/src/phobos -I/Library/D/dmd/src/druntime/import -L-L/Library/D/dmd/lib

I now uninstalled dmd and dub by running the uninstall.command. Then I installed dmd (v2.085.0) and dub, by "brew install dmd" and "brew install dub". I can now "dub build" vibe.d examples (http_server, http_static_server, websocket) without problems. I conclude that there are problems with your dmd.2.085.0.dmg and dmd.2.085.1.dmg installers. I still have some linking problems with drepl, but I will (soon) report that at https://github.com/dlang-community/drepl/issues/77.

I can't reproduce the failure locally on a Mac OSX 10.15.4. I installed the latest `dmg` and things work. Since we don't fix up old build, closing as `WORKSFORME`. If you do have any other issue with the provided `dmg`, please feel free to open an issue on Github (https://github.com/dlang/tools/issues).