digitalmars.D.ldc - Having trouble cross-compiling from linux to windows

TheZipCreator (48/120) Jan 14 2023 I've installed ldc2 for linux and am now trying to compile for

ryuukk_ (17/17) Jan 14 2023 If i remember correctly, you need to make sure you have

TheZipCreator (2/19) Jan 14 2023 I've added that and I still get the same errors.

Sergey (32/32) Jan 14 2023 I don't have ability to test it, but try this How-To:

TheZipCreator (2/22) Jan 14 2023 this worked (or at least the executable runs under wine)! thanks

TheZipCreator (11/29) Jan 14 2023 actually, nevermind. I tried to compile something more

kinke (8/13) Jan 15 2023 Not sure if that's the problem, but as mentioned on

TheZipCreator (4/18) Jan 15 2023 This did appear to be the issue. I reinstalled ldc2 from the same

TheZipCreator <thezipcreator protonmail.com> writes:

I've installed ldc2 for linux and am now trying to compile for 
windows. I downloaded the windows release as well and put the 
libs into the libs folder of the linux version. I'm currently 
trying to compile a simple test application:
```d
import std.stdio;

void main() {
	writeln("Hello, World!");
}
```
with the following compiler arguments:
`ldc2 hello.d --mtriple x86_64-windows-msvc`
but I get a linker error (with `-c` it compiles just fine, but I 
need to produce an executable so that won't work.)
Here's the output the compiler gives me:
```
lld-link: error: <root>: undefined symbol: wmainCRTStartup
lld-link: error: undefined symbol: 
_D3std5stdio13trustedStdoutFNdNeZSQBgQBf4File
 referenced by 
 hello.obj:(_D3std5stdio__T7writelnTAyaZQnFNfQjZv)



lld-link: error: undefined symbol: 
_D3std5stdio4File17lockingTextWriterMFNfZSQBoQBnQBk17LockingTextWriter
 referenced by 
 hello.obj:(_D3std5stdio__T7writelnTAyaZQnFNfQjZv)



lld-link: error: undefined symbol: _D3std5stdio4File6__dtorMFNfZv
 referenced by 
 hello.obj:(_D3std5stdio__T7writelnTAyaZQnFNfQjZv)
 referenced by 
 hello.obj:(?dtor$7 ?0?_D3std5stdio__T7writelnTAyaZQnFNfQjZv 4HA)



lld-link: error: undefined symbol: 
_D3std5stdio4File17LockingTextWriter10__aggrDtorMFNeZv
 referenced by 
 hello.obj:(_D3std5stdio__T7writelnTAyaZQnFNfQjZv)
 referenced by 
 hello.obj:(?dtor$4 ?0?_D3std5stdio__T7writelnTAyaZQnFNfQjZv 4HA)



lld-link: error: undefined symbol: __CxxFrameHandler3
 referenced by hello.obj:(.xdata)



lld-link: error: undefined symbol: _d_enter_cleanup
 referenced by 
 hello.obj:(?dtor$4 ?0?_D3std5stdio__T7writelnTAyaZQnFNfQjZv 4HA)
 referenced by 
 hello.obj:(?dtor$7 ?0?_D3std5stdio__T7writelnTAyaZQnFNfQjZv 4HA)



lld-link: error: undefined symbol: _d_leave_cleanup
 referenced by 
 hello.obj:(?dtor$4 ?0?_D3std5stdio__T7writelnTAyaZQnFNfQjZv 4HA)
 referenced by 
 hello.obj:(?dtor$7 ?0?_D3std5stdio__T7writelnTAyaZQnFNfQjZv 4HA)



lld-link: error: undefined symbol: _d_wrun_main
 referenced by hello.obj:(wmain)



lld-link: error: undefined symbol: 
_D3std5stdio4File17LockingTextWriter26highSurrogateShouldBeEmptyMFNfZv
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTaZQhMFNfaZv)
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTyaZQiMFNfyaZv)



lld-link: error: undefined symbol: 
_D3std5stdio4File17LockingTextWriter7handle_MFNdNeZPS4core4stdcQCf6_iobuf
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTaZQhMFNfaZv)
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTaZQhMFNfaZv)
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTaZQhMFNfaZv)
 referenced 3 more times



lld-link: error: undefined symbol: _fputc_nolock
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTaZQhMFNfaZv)
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTyaZQiMFNfyaZv)



lld-link: error: undefined symbol: _fputwc_nolock
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTaZQhMFNfaZv)
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTaZQhMFNfaZv)
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTyaZQiMFNfyaZv)
 referenced 1 more times



lld-link: error: undefined symbol: _d_arraybounds_index
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTaZQhMFNfaZv)
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTaZQhMFNfaZv)
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTyaZQiMFNfyaZv)
 referenced 8 more times



lld-link: error: undefined symbol: _d_arraybounds_slice
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTaZQhMFNfaZv)
 referenced by 
 hello.obj:(_D3std5stdio4File17LockingTextWriter__T3putTyaZQiMFNfyaZv)
 referenced by 
 hello.obj:(_D3std3utf__T11decodeFrontVEQBa8typecons__T4FlagVAyaa19_7573655265706c6163656d656e744463686172ZQCai0TAaZQDnFNaNeMKQnJmZw)
 referenced 2 more times



lld-link: error: undefined symbol: fwrite
 referenced by 
 hello.obj:(_D3std5stdio__T13trustedFwriteTaZQsFNbNiNePOS4core4stdcQBx6_iobufxAaZm)



lld-link: error: undefined symbol: ClassInfo for 
std.exception.ErrnoException
 referenced by 
 hello.obj:(_D3std9exception__T7bailOutHTCQBcQBb14ErrnoExceptionZQBiFNfAyamMAxaZNn)



lld-link: error: undefined symbol: _d_allocclass
 referenced by 
 hello.obj:(_D3std9exception__T7bailOutHTCQBcQBb14ErrnoExceptionZQBiFNfAyamMAxaZNn)
 referenced by 
 hello.obj:(_D3std3utf__T10decodeImplVbi1VEQBd8typecons__T4FlagVAyaa19_7573655265706c6163656d656e744463686172ZQCai0TAxaZQDrFQiKmZ__T9exceptionTQBbZQpFNaNbNfQBoQDrZCQFuQFt12UTFException)
 referenced by 
 hello.obj:(_D3std3utf__T13_utfExceptionVEQBc8typecons__T4FlagVAyaa19_7573655265706c6163656d656e744463686172ZQCai0ZQDmFNaNfQCiwZw)



lld-link: error: undefined symbol: vtable for 
std.exception.ErrnoException
 referenced by 
 hello.obj:(_D3std9exception__T7bailOutHTCQBcQBb14ErrnoExceptionZQBiFNfAyamMAxaZNn)



lld-link: error: undefined symbol: initializer for 
std.exception.ErrnoException
 referenced by 
 hello.obj:(_D3std9exception__T7bailOutHTCQBcQBb14ErrnoExceptionZQBiFNfAyamMAxaZNn)



lld-link: error: too many errors emitted, stopping now (use 
/errorlimit:0 to see all errors)
Error: linking with LLD failed
```

Jan 14 2023

ryuukk_ <ryuukk.dev gmail.com> writes:

If i remember correctly, you need to make sure you have

```
"x86_64-.*-windows-msvc":
{
     switches = [
         "-defaultlib=phobos2-ldc,druntime-ldc",
     ];
     lib-dirs = [
         "%%ldcbinarypath%%/../lib-win64",
     ];
};
```

in ``$LDC_PATH/etc/ldc2.conf ``


Here is how dscanner is doing it: 
https://github.com/dlang-community/D-Scanner/blob/master/setup-ldc-windows.sh

I wonder why they need to do all of that, it should work out of 
the box.. that's weird

Jan 14 2023

TheZipCreator <thezipcreator protonmail.com> writes:

On Saturday, 14 January 2023 at 20:24:06 UTC, ryuukk_ wrote:
 If i remember correctly, you need to make sure you have

 ```
 "x86_64-.*-windows-msvc":
 {
     switches = [
         "-defaultlib=phobos2-ldc,druntime-ldc",
     ];
     lib-dirs = [
         "%%ldcbinarypath%%/../lib-win64",
     ];
 };
 ```

 in ``$LDC_PATH/etc/ldc2.conf ``


 Here is how dscanner is doing it: 
 https://github.com/dlang-community/D-Scanner/blob/master/setup-ldc-windows.sh

 I wonder why they need to do all of that, it should work out of 
 the box.. that's weird

I've added that and I still get the same errors.

Jan 14 2023

Sergey <kornburn yandex.ru> writes:

I don't have ability to test it, but try this How-To:

* download LDC for Linux
* download LDC for Windows (multilib)
* extract LDC for Linux somewhere - it will be $LDC_PATH
* add to $PATH : $LDC_PATH/bin
* extract LDC for Windows and move folders lib32 and lib64 to 
<LDC_PATH>/win-lib32 and <LDC_PATH>/win_lib64
* add rows below to the $LDC_PATH/etc/ldc2.conf:
```bash
   "i[3-6]86-.*-windows-msvc":
   {
       switches = [
           "-defaultlib=phobos2-ldc,druntime-ldc",
           "-link-defaultlib-shared=false",
       ];
       lib-dirs = [
           "%%ldcbinarypath%%/../win-lib32",
       ];
   };

   "x86_64-.*-windows-msvc":
   {
       switches = [
           "-defaultlib=phobos2-ldc,druntime-ldc",
           "-link-defaultlib-shared=false",
       ];
       lib-dirs = [
           "%%ldcbinarypath%%/../win-lib64",
       ];
   };
```
* to build use
```dub build --arch=x86_64-pc-windows-msvc```

Jan 14 2023

TheZipCreator <thezipcreator protonmail.com> writes:

On Saturday, 14 January 2023 at 22:16:35 UTC, Sergey wrote:
 I don't have ability to test it, but try this How-To:

 * download LDC for Linux
 * download LDC for Windows (multilib)
 * extract LDC for Linux somewhere - it will be $LDC_PATH
 * add to $PATH : $LDC_PATH/bin
 * extract LDC for Windows and move folders lib32 and lib64 to 
 <LDC_PATH>/win-lib32 and <LDC_PATH>/win_lib64
 * add rows below to the $LDC_PATH/etc/ldc2.conf:
 ```bash
   "i[3-6]86-.*-windows-msvc":
   {
       switches = [
           "-defaultlib=phobos2-ldc,druntime-ldc",
           "-link-defaultlib-shared=false",
       ];
       lib-dirs = [
           "%%ldcbinarypath%%/../win-lib32",
       ];
   };

 [...]

this worked (or at least the executable runs under wine)! thanks

Jan 14 2023

TheZipCreator <thezipcreator protonmail.com> writes:

actually, nevermind. I tried to compile something more 
substantial (my terminal game, 
[qonquest](https://github.com/TheZipCreator/qonquest)) as a test 
and I got the following errors:
```
lld-link: error: undefined symbol: 
_D3std4file8DirEntry4nameMxFNaNbNdNjNlNfZAya
 referenced by /home/z/code/d/qonquest/source/script.d:236
               
 .dub/build/application-debug-windows-x86_64-ldc_v1.30.0-git-501c657-B35CDD9344888E5E741CE71FFBE20530/qonquest.obj:(_D6script11loadScriptsFAyaPS4arsd8terminal8TerminalZv)
 referenced by /home/z/code/d/qonquest/source/saveload.d:82
               
 .dub/build/application-debug-windows-x86_64-ldc_v1.30.0-git-501c657-B35CDD9344888E5E741CE71FFBE20530/qonquest.obj:(_D8saveload8saveListFZAya)
 referenced by 
 /home/z/.dub/packages/arsd-official-10.9.8/arsd-official/terminal.d:7391
               
 arsd-official_terminal.lib(arsd.terminal.obj):(_D4arsd8terminal14FileLineGetter11tabCompleteMFIAwIQdZAAya)



lld-link: error: undefined symbol: 
_D6object9Throwable4nextMNgFNaNbNdNiNjNlNfZNgCQBsQBo
 referenced by 
 .dub/build/application-debug-windows-x86_64-ldc_v1.30.0-git-501c657-B35CDD9344888E5E741CE71FFBE20530/
onquest.obj:(vtable for script.ScriptException)
 referenced by 
 .dub/build/application-debug-windows-x86_64-ldc_v1.30.0-git-501c657-B35CDD9344888E5E741CE71FFBE20530/
onquest.obj:(vtable for app.CommandException)
 referenced by 
 arsd-official_terminal.lib(arsd.terminal.obj):(vtable for 
 arsd.terminal.UserInterruptionException)
 referenced 1 more times



```
which both appear to be phobos/druntime things

Jan 14 2023

kinke <noone nowhere.com> writes:

On Saturday, 14 January 2023 at 22:54:13 UTC, TheZipCreator wrote:
 actually, nevermind. I tried to compile something more 
 substantial (my terminal game, 
 [qonquest](https://github.com/TheZipCreator/qonquest)) as a 
 test and I got the following errors:
 [...]

Not sure if that's the problem, but as mentioned on 
https://wiki.dlang.org/Cross-compiling_with_LDC, it is absolutely 
crucial that the Windows libs are copied from a Windows package 
*of the same version as your host LDC* (so that the bundled 
importable .d files match the prebuilt libs). You seem to be 
using a CI build (`…-git-501c657`), so the Windows package needs 
to be from the same CI build.

Jan 15 2023

TheZipCreator <thezipcreator protonmail.com> writes:

On Sunday, 15 January 2023 at 11:21:46 UTC, kinke wrote:
 On Saturday, 14 January 2023 at 22:54:13 UTC, TheZipCreator 
 wrote:
 actually, nevermind. I tried to compile something more 
 substantial (my terminal game, 
 [qonquest](https://github.com/TheZipCreator/qonquest)) as a 
 test and I got the following errors:
 [...]

 Not sure if that's the problem, but as mentioned on 
 https://wiki.dlang.org/Cross-compiling_with_LDC, it is 
 absolutely crucial that the Windows libs are copied from a 
 Windows package *of the same version as your host LDC* (so that 
 the bundled importable .d files match the prebuilt libs). You 
 seem to be using a CI build (`…-git-501c657`), so the Windows 
 package needs to be from the same CI build.

This did appear to be the issue. I reinstalled ldc2 from the same 
release as where I got the windows libs and now it works 
perfectly.

Jan 15 2023

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digitalmars.D.ldc - Having trouble cross-compiling from linux to windows