Re: unresolved symbols with ncurses-5.6 on Alpha OSF1 5.1A

[Thomas Dickey]

On Tue, 17 Apr 2007, Martin MOKREJŠ wrote:

> make[1]: Entering directory `/usr/home3/mmokrejs/ncurses-5.6/progs'
> gcc ../objects/tic.o ../objects/dump_entry.o -L../lib -lncurses -L../lib 
> -lncurses    -I../progs -I. -DHAVE_CONFIG_H -I. -I../include  -D_OSF_SOURCE 
> -DNDEBUG -I/usr/home3/mmokrejs/include/ncurses -O2 -o tic
> _nc_first_name
...
> _nc_infotocap
> collect2: ld returned 1 exit status

As I noted, you may be able to add an option to gcc to show the specific
files it opens.  But in the instance where you used -v, I only saw the
specs file listed.

> Making simpler the above compile/linker command while retaining -lncurses 
> makes the linking step fail again:
>
> $ gcc ../objects/tic.o ../objects/dump_entry.o -I../progs -I. -DHAVE_CONFIG_H 
> -I. -I../include  -D_OSF_SOURCE -DNDEBUG 
> -I/usr/home3/mmokrejs/include/ncurses -O2 -o tic -lncurses
> _nc_first_name
...
On this instance I don't see a -L option.

So gcc will pick up libncurses from its preferred location, e.g., 
/usr/local/lib

> Let's link statically the new libncurses.a ...
>
> $ gcc ../objects/tic.o ../objects/dump_entry.o ../lib/libncurses.a -I../progs 
> -I. -DHAVE_CONFIG_H -I. -I../include  -D_OSF_SOURCE -DNDEBUG 
> -I/usr/home3/mmokrejs/include/ncurses -O2 -o tic

I'd like to solve it this way - but recall some linkers simply put the 
entire contents of the ".a" file in the output.

> $ ./tic
> tic: File name needed.  Usage:
>       tic [-e names] [-o dir] [-R name] [-v[n]] [-V] [-w[n]] 
> [-1aCcfGgILNrsTtUx] source-file
> $
> $ ls -la /usr/local/lib/libncurses*
> -rwxr-xr-x   1 root     system     85030 Jun  1  2001 
> /usr/local/lib/libncurses++.a
> -rw-r--r--   1 root     system    341328 Jun  1  2001 
> /usr/local/lib/libncurses.a
> -rw-r--r--   1 root     system    178976 Jun  1  2001 
> /usr/local/lib/libncurses.so
> -rw-r--r--   1 root     system   2318006 Jun  1  2001 
> /usr/local/lib/libncurses_g.a
> $
>
> So, my problem is that static libs are being built on my system, but linker 
> is instructed to
> use shared libs. Incidentally, gcc picks up the old libncurses installed in 
> /usr/local.


--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net