Re: Strange scary warnings when compiling SWI-Prolog 7.1.10 on Ubuntu 12.04

Paulo Moura <[email protected]>
Newsgroups gmane.comp.ai.prolog.swi
Message-ID <[email protected]>
On 27/03/2014, at 15:32, Jan Wielemaker <[email protected]> wrote:

> Hi Paulo,
> 
> Haven't seen that.  Seems you are missing term.h and/or curses.h.  Did you install all required packages, notably ncurses-dev?

You're right: the ncurses-dev package was not installed. Installing it ad recompiling SWI-Prolgo got rid of the warnings. Thanks for your help.

Cheers,

Paulo

> On 03/27/2014 02:51 PM, Paulo Moura wrote:
>> Hi,
>> 
>> When compiling SWI-Prolog 7.1.10 on Ubuntu 12.04, I get at the end of the (successful) compilation the following strange and scary warnings:
>> 
>> QA Notice: Package triggers severe warnings which indicate that it
>>            may exhibit random runtime failures.
>> pl-term.c:129:5: warning: implicit declaration of function �tgetent� [-Wimplicit-function-declaration]
>> pl-term.c:182:7: warning: implicit declaration of function �tgetnum� [-Wimplicit-function-declaration]
>> pl-term.c:187:7: warning: implicit declaration of function �tgetflag� [-Wimplicit-function-declaration]
>> pl-term.c:192:7: warning: implicit declaration of function �tgetstr� [-Wimplicit-function-declaration]
>> pl-term.c:262:3: warning: implicit declaration of function �tgoto� [-Wimplicit-function-declaration]
>> pl-term.c:266:3: warning: implicit declaration of function �tputs� [-Wimplicit-function-declaration]
>> 
>> 
>> QA Notice: Package triggers severe warnings which indicate that it
>>            may exhibit random runtime failures.
>> pl-term.c:192:15: warning: assignment makes pointer from integer without a cast [enabled by default]
>> pl-term.c:262:5: warning: assignment makes pointer from integer without a cast [enabled by default]
>> 
>> Any ideas? Should I run for cover? Why me? Can these warnings be safely ignored?
> 
> These routines are used by tty_goto/2 and tty_get_capability/3.  Whether
> or not it is harmful depends in the CPU.  In general, yes.  These
> predicates are not used by the system AFAIK, so as long as your
> application doesn't use them, you should be safe.  They should
> be moved to an extension ...
> 
> 	Cheers --- Jan
> 
>> 
>> Cheers,
>> 
>> Paulo

-----------------------------------------------------------------
Paulo Moura
Logtalk developer

Email: <mailto:[email protected]>
Web:   <http://logtalk.org/>
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