How to compile Phobos with other D code to create a shared library?

[Steven Schveighoffer]

On 6/1/21 2:18 PM, data pulverizer wrote:
> Doing `Runtime.initialize` is working with Julia but not yet R, I'm 
> getting a clock/GLIBC error
> 
> ```
> Error in dyn.load("rbasic.so") :
>    unable to load shared object 'code/rbasic.so':
>    lib/x86_64-linux-gnu/librt.so.1: undefined symbol: __clock_nanosleep, 
> version GLIBC_PRIVATE
> ```
> 
> do I need to import anything else?

What's happening is that the dynamic linker is trying to resolve that 
symbol, but cannot find it in the given library.

Try `ldd code/rbasic.so` and see if it tells you the things it is 
looking for. Many times, you will see "Not found" or something and you 
know what library to install/look for.

Otherwise, it might be that librt.so.1 seemed to have __clock_nanosleep 
when it was built, but the librt.so.1 it is loading during runtime does 
not have it. Are you building on one machine and then running on another?

-Steve