Linking C++ standard library works with GDC... but not DMD. (Linux)

[TheGag96 via Digitalmars-d-learn]

On Thursday, 16 April 2015 at 09:46:40 UTC, John Colvin wrote:
> On Thursday, 16 April 2015 at 08:51:15 UTC, TheGag96 wrote:
>> Hi, I've got this project that requires me to link into a C++
>> backend. It works just fine when using GDC:
>>
>> gdc *.d [client libraries]
>>
>> However, this command using DMD does not work:
>>
>> dmd -L-lstdc++ *.d [client libraries]
>>
>> I still get errors involving the standard library not being 
>> added
>> like:
>>
>> /usr/include/c++/4.8/iostream:74: undefine reference to
>> `std::ios_base::Init::Init()'
>> (etc.)
>>
>> What do I need to do to make this work? Thanks.
>
> I don't know why that's happening, but you can explicitly link 
> using gcc (or ld/gold directly) if you need to. E.g.
>
> dmd -c myFile.d
> gcc myFile.o -lphobos2
>
> or whatever is necessary on your project/system.

I had wanted to try this too, but I wasn't sure if the linker 
knew where phobos2 was on my system. I just tried this now for 
funsies:

dmd -c *.d
g++ main.o [client files] -lphobos2

With or without that -lphobos2 flag, I get errors like these:

main.d(.text._Dmain+0x18e): undefined reference to 
`D3std5stdio16__T7writeln(TAyaZ7writeFAyaZv'