fPIC Error

[Picaud Vincent via Digitalmars-d-learn]

On Thursday, 3 November 2016 at 05:16:11 UTC, Dlang User wrote:
> I am running Debian Testing and I think I have run into the 
> recent fPIC issue.  This is the source code for the test 
> project I am using:
>
> import std.stdio;
>
> void main()
> {
> 	writeln("Edit source/app.d to start your project.");
> 	readln();
> }
>
>
> When I try to compile a project, I get the following errors 
> (truncated for brevity):
>
>
> /usr/bin/ld: 
> /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libphobos2.a(thread_26c_155.o): relocation R_X86_64_32 against symbol `__dmd_personality_v0' can not be used when making a shared object; recompile with -fPIC
> /usr/bin/ld: final link failed: Nonrepresentable section on 
> output
> collect2: error: ld returned 1 exit status
> dmd failed with exit code 1.
> Exit code 2
> Build complete -- 1 error, 0 warnings
>

I got the same problem, still under Debian. A fix is to use these 
flags:

dmd -shared -m64 -fPIC -defaultlib=libphobos2.so app.d

You can also use another compiler:

dub --compiler=ldc2

or

rdmd --compiler=ldc2

Note that it is not recommended to use gdc because it is not up 
to date, use dmd or ldc2.

Also note, that if you use Emacs + Org Mode,

http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-C.html

you will encounter the same problem. A fix is to add the 
following line in your .emacs file:

(setq org-babel-D-compiler "rdmd --compiler=ldc2")


Vincent