[R] [R-pkgs] rcompletion: TAB completion for the R command line

[Alexandre Aguiar]

Hi,

I've tried to compile rcompletion and perhaps have detected the reason for 
failures, although I haven't succeeded yet.

Em Ter 31 Out 2006 02:10, Deepayan Sarkar escreveu:
> However, there are known cases
> of false negatives, i.e. installation failing when it shouldn't. If
> this happens to you, any information you can provide to help resolve
> the problem would be appreciated.

>From config.lo generated by rcompletion configure
-------------------8><--------------------
/usr/local/lib/gcc/i686-pc-linux-gnu/4.0.3/../../../libreadline.so: undefined 
reference to `tgetnum'
/usr/local/lib/gcc/i686-pc-linux-gnu/4.0.3/../../../libreadline.so: undefined 
reference to `tgoto'
/usr/local/lib/gcc/i686-pc-linux-gnu/4.0.3/../../../libreadline.so: undefined 
reference to `tgetflag'
/usr/local/lib/gcc/i686-pc-linux-gnu/4.0.3/../../../libreadline.so: undefined 
reference to `BC'
/usr/local/lib/gcc/i686-pc-linux-gnu/4.0.3/../../../libreadline.so: undefined 
reference to `tputs'
/usr/local/lib/gcc/i686-pc-linux-gnu/4.0.3/../../../libreadline.so: undefined 
reference to `PC'
/usr/local/lib/gcc/i686-pc-linux-gnu/4.0.3/../../../libreadline.so: undefined 
reference to `tgetent'
/usr/local/lib/gcc/i686-pc-linux-gnu/4.0.3/../../../libreadline.so: undefined 
reference to `UP'
/usr/local/lib/gcc/i686-pc-linux-gnu/4.0.3/../../../libreadline.so: undefined 
reference to `tgetstr'
-------------------8><--------------------

It seems configure can't figure where to find these functions.

>From readline5.0 configure script
-------------------8><--------------------
checking for tgetent... no
checking for tgetent in -ltermcap... no
checking for tgetent in -ltinfo... no
checking for tgetent in -lcurses... yes
checking which library has the termcap functions... using libcurses
-------------------8><--------------------

The unresolved function calls (and perhaps symbols of other types) may be 
located at libcurses. At least in my system they are.

>From termcap.h
-------------------8><--------------------
#undef  NCURSES_VERSION
#define NCURSES_VERSION "5.5"

#include <ncurses_dll.h>

#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */

#include <sys/types.h>

#undef  NCURSES_CONST 
#define NCURSES_CONST /*nothing*/ 

#undef  NCURSES_OSPEED 
#define NCURSES_OSPEED short 

extern NCURSES_EXPORT_VAR(char) PC;
extern NCURSES_EXPORT_VAR(char *) UP;
extern NCURSES_EXPORT_VAR(char *) BC;
extern NCURSES_EXPORT_VAR(NCURSES_OSPEED) ospeed; 

#if !defined(NCURSES_TERM_H_incl)
extern NCURSES_EXPORT(char *) tgetstr (NCURSES_CONST char *, char **);
extern NCURSES_EXPORT(char *) tgoto (const char *, int, int);
extern NCURSES_EXPORT(int) tgetent (char *, const char *);
extern NCURSES_EXPORT(int) tgetflag (NCURSES_CONST char *);
extern NCURSES_EXPORT(int) tgetnum (NCURSES_CONST char *);
extern NCURSES_EXPORT(int) tputs (const char *, int, int (*)(int));
#endif
-------------------8><--------------------

May be your configure needs some rewriting to include a check for the location 
of unknown symbols like readline's configure does.

Best wishes,

-- 


Alexandre Aguiar
Independent consultant for medical research
SPS Consultoria
Voice: +55-11-9320-2046
Fax: +55-11-5549-8760