Re: CMake support for Lua

[Markus Schaaf <markuschaaf@...>]

Am 20.03.23 um 18:58 schrieb Gé Weijers:
> On Mon, Mar 20, 2023 at 2:41 AM Luiz Henrique de Figueiredo 
> <lhf@tecgraf.puc-rio.br <mailto:lhf@tecgraf.puc-rio.br>> wrote:
>
>      > when I had to recompile 5.4.4 with readline I found the
>     new GNU readline depends on termcap.
>
>     Are you sure? Where is this documented?
>     Doesn't it depend on how readline was built?
>     I hope we're not back to this discussion:
>     http://lua-users.org/lists/lua-l/2010-11/msg00220.html
>     <http://lua-users.org/lists/lua-l/2010-11/msg00220.html>
>
>
> If you link libreadline as a dynamic library the dependency does 
> not have to be specified, because the dynamic loader will load 
> libreadline.so's dependencies automatically, but if you link it 
> statically you will have to specify the libncurses library, 
> because the linker can't figure it out from libreadline.a's contents.

That is what pkgconf is for:

$ pkgconf --libs --static readline
-lreadline -lncursesw
$ pkgconf --libs readline
-lreadline

Build-systems like CMake, Meson etc. take care of this, too.

BR