Dynamically calling shared objects from statically build executable allowed

[Andre Pany]

On Monday, 10 February 2020 at 13:14:50 UTC, Ernesto Castellotti 
wrote:
> On Monday, 10 February 2020 at 04:41:31 UTC, Andre Pany wrote:
>> Is this a bug with LDC and DMD, or is it not allowed
>> to dynamically call a SO from a statically build executable on 
>> linux
>
> On Unix systems it is not possible to dynamically load a 
> library shared by a static executable, I don't know if it works 
> differently for Windows.
>
> This is because it is absolutely necessary to link libdl 
> dynamically, you cannot link static.
>
> For GNU/Linux systems there is this alternative to dlopen/dlsym 
> that does not require dynamic link: 
> https://www.gnu.org/software/libtool/manual/html_node/Dlpreopening.html

This is a topic I almost have no knowledge, therefore a question.

If I understand this StackOverflow question correctly, it is 
possible to call dynamically a shared object from a static 
library (with dlopen):

https://stackoverflow.com/questions/17862272/dlopen-a-dynamic-library-from-a-static-library-linux-c

But I understand from you it is not possible dynamically call a 
shared object from a static executable.

Therefore it works for static libraries but not for statically 
executables?

Kind regards
Andre