I am not aware of a common issue like that but D has bugs.
> Also importC isn't what you think it is
That's contrary to my tests: I installed libplot on my system, 'import'ed its .h file to my D source code, called C functions from D, linked with -L-lplot and it worked.
> not importing foreign C libs you've installed on your system
Maybe you mean something else with "importing" but I installed a foreign C library on my system and it just worked without any hand-written D bindings for it.
I am not aware of a common issue like that but D has bugs.
> Also importC isn't what you think it is
That's contrary to my tests: I installed libplot on my system, 'import'ed its .h file to my D source code, called C functions from D, linked with -L-lplot and it worked.
> not importing foreign C libs you've installed on your system
Maybe you mean something else with "importing" but I installed a foreign C library on my system and it just worked without any hand-written D bindings for it.