If my homebuilt dmd fails to build my dub project with message

/usr/bin/ld: error: .dub/build/application-unittest-linux.posix-x86_64-dmd_2079-C9019ECA621321CC168B385F53D82831/knetquery.o: requires dynamic R_X86_64_32 reloc against '_D6object9Throwable7__ClassZ' which may overflow at runtime; recompile with -fPIC

what have I done wrong?

Where should I add the -fPIC switch?

On 26/03/2018 1:05 AM, Nordlöw wrote:
> If my homebuilt dmd fails to build my dub project with message
> 
> /usr/bin/ld: error: .dub/build/application-unittest-linux.posix-x86_64-dmd_2079-C9019ECA621321CC168B385F53D82831/knetquery.o: requires dynamic R_X86_64_32 reloc against '_D6object9Throwable7__ClassZ' which may overflow at runtime; recompile with -fPIC
> 
> what have I done wrong?
> 
> Where should I add the -fPIC switch?

-fPIC needs to go into dmd's configuration file.

On Sunday, 25 March 2018 at 12:05:32 UTC, Nordlöw wrote:
> If my homebuilt dmd fails to build my dub project with message
>
> /usr/bin/ld: error: .dub/build/application-unittest-linux.posix-x86_64-dmd_2079-C9019ECA621321CC168B385F53D82831/knetquery.o: requires dynamic R_X86_64_32 reloc against '_D6object9Throwable7__ClassZ' which may overflow at runtime; recompile with -fPIC
>
> what have I done wrong?
>
> Where should I add the -fPIC switch?

Are you on a 32-bit system?
(For 64-bit -fPIC is the default since 2.072.2 - though DMD's build scripts were only updated a few releases later)

On Sunday, 25 March 2018 at 18:43:09 UTC, Seb wrote:
> Are you on a 32-bit system?
> (For 64-bit -fPIC is the default since 2.072.2 - though DMD's build scripts were only updated a few releases later)

No, I have my own build script for dmd, though because I can't get Digger to work either.

On Sunday, 25 March 2018 at 20:26:22 UTC, Nordlöw wrote:
> On Sunday, 25 March 2018 at 18:43:09 UTC, Seb wrote:
>> Are you on a 32-bit system?
>> (For 64-bit -fPIC is the default since 2.072.2 - though DMD's build scripts were only updated a few releases later)
>
> No, I have my own build script for dmd, though because I can't get Digger to work either.

What error do you get with Digger?
Note that you the version on Dub just has been updated today:

https://github.com/dlang-bots/dlang-bot/pull/194#issuecomment-375993106

For building everything locally, it should be as easy as:

---
git clone https://github.com/dlang/dmd
git clone https://github.com/dlang/druntime
git clone https://github.com/dlang/phobos
cd phobos && make -f posix.mak -j10
---

(dmd + druntime are built automatically from Phobos)

I advise against rolling your own built script and reporting your issues either here, Slack or IRC.
If we can reproduce your issue, chances are that someone else will run into them too ;-)

BTW there's also this setup script:

https://github.com/dlang/tools/blob/master/setup.sh

On Sunday, 25 March 2018 at 20:35:01 UTC, Seb wrote:
> For building everything locally, it should be as easy as:
>
> ---
> git clone https://github.com/dlang/dmd
> git clone https://github.com/dlang/druntime
> git clone https://github.com/dlang/phobos
> cd phobos && make -f posix.mak -j10

How do I build a release-inline-nobounds build with ldc? I want to set

- DC=ldmd2,
- ENABLE_RELEASE=1

when building dmd.

> BTW there's also this setup script:
>
> https://github.com/dlang/tools/blob/master/setup.sh

Thanks.

On Monday, 26 March 2018 at 10:01:38 UTC, Nordlöw wrote:
> On Sunday, 25 March 2018 at 20:35:01 UTC, Seb wrote:
>> For building everything locally, it should be as easy as:
>>
>> ---
>> git clone https://github.com/dlang/dmd
>> git clone https://github.com/dlang/druntime
>> git clone https://github.com/dlang/phobos
>> cd phobos && make -f posix.mak -j10
>
> How do I build a release-inline-nobounds build with ldc? I want to set
>
> - DC=ldmd2,
> - ENABLE_RELEASE=1
>
> when building dmd.
>
>> BTW there's also this setup script:
>>
>> https://github.com/dlang/tools/blob/master/setup.sh
>
> Thanks.

1) With LDC
------------

make -f posix.mak HOST_DMD=ldmd (or ldmd2 - depending on your distro)

2) Release mode params
-----------------------

It's defined here:

https://github.com/dlang/dmd/blob/master/src/posix.mak#L242

It doesn't add -noboundscheck by default.
Typically the Makefiles allow passing an initial DFLAG variable, but that one doesn't seem to allow it, so I just submitted a PR to do so (https://github.com/dlang/dmd/pull/8089).
With this PR you can do:

make -f posix.mak HOST_DMD=ldmd ENABLE_RELEASE=1 DFLAGS="-noboundscheck"

You might want to give ENABLE_LTO a try too.

On Monday, 26 March 2018 at 10:57:28 UTC, Seb wrote:
> It doesn't add -noboundscheck by default.
> Typically the Makefiles allow passing an initial DFLAG variable, but that one doesn't seem to allow it, so I just submitted a PR to do so (https://github.com/dlang/dmd/pull/8089).
> With this PR you can do:
>
> make -f posix.mak HOST_DMD=ldmd ENABLE_RELEASE=1 DFLAGS="-noboundscheck"
>
> You might want to give ENABLE_LTO a try too.

Thanks!