Re: configure bugs

[Chet Ramey]

On 3/25/22 5:57 AM, boris busic wrote:
> 1) if gcc with --sys-root is used ./configure fails with: "gcc cannot 
> compile ..."  if the sys-root libc is a higher version than the host's

Isn't that a user build environment problem?

> 2) for any gcc that succeeds libreadline.so is built without 
> lib(n)curses.so dependence which is mostly unimportant, but only mostly.
> It came to my attention when building fontconfig package which fails with  
> "UP undeclared ..." or such.

Yes. Deciding which curses/termcap library to use is up to the application
using readline. Some distributions have built and distributed readline with
a dependency to their install path for ncurses; some have not.

There is a sample autoconf macro in the readline distribution
(examples/autoconf/BASH_CHECK_LIB_TERMCAP) that applications can use to
figure out the right curses library.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/