Subj : Re: tcc - how do I specify the library paths ?
To   : alt.comp.linux,alt.comp.os.linux,comp.os.linux
From : moma
Date : Sun Oct 31 2004 04:03 pm

Hello Mark,

(1) You have already DL and installed  "argtable".


(2) Download also the source package w/ samples

$ wget http://prdownloads.sourceforge.net/argtable/argtable-2.3.tar.gz; 
  tar -xvzf  $(basename 
http://prdownloads.sourceforge.net/argtable/argtable-2.3.tar.gz)

$ cd argt*/exam*
$ pwd
/home/moma/tmp/argtable2/example

There are a working "Makefile" that shows how to compile the samples.
------------

$ ls

echo.c  ls.c  Makefile  Makefile.in  Makefile.nmake  mv.c  myprog.c 
myprog_C89.c  README.txt  rm.c  uname.c
----------------

Type 'make' to compile the samples

$ make
gcc -I/usr/local/include -g -Wall  -L/usr/local/lib  uname.c 
-largtable2 -o uname
gcc -I/usr/local/include -g -Wall  -L/usr/local/lib  rm.c  -largtable2 -o rm
gcc -I/usr/local/include -g -Wall  -L/usr/local/lib  mv.c  -largtable2 -o mv
gcc -I/usr/local/include -g -Wall  -L/usr/local/lib  echo.c  -largtable2 
-o echo
gcc -I/usr/local/include -g -Wall  -L/usr/local/lib  ls.c  -largtable2 -o ls
gcc -I/usr/local/include -g -Wall  -L/usr/local/lib  myprog.c 
-largtable2 -o myprog
gcc -I/usr/local/include -g -Wall  -L/usr/local/lib  myprog_C89.c 
-largtable2 -o myprog_C89
----------------

Study how the -L and -l options are used.

----------------

3) Possible errors after compilation.
Run ./mv

$ ./mv

"./mv: error while loading shared libraries: libargtable2.so: cannot 
open shared object file: No such file or directory"
---

The system does not know where to load "libargtable2.so". So we need to 
help.

Do as 'root' user.

# cat /etc/ld.so.conf

And add "/usr/local/lib" into library list if it's missing.

# echo "/usr/local/lib" >>  /etc/ld.so.conf

Update library cache
# ldconfig
----------------


4) Rerun ./mv
../mv --help
Usage: mv [-bfiuv] [--backup=[CONTROL]] [--reply={yes,no,query}] 
[--strip-trailing-slashes] [-S SUFFIX] [--target-directory=DIRECTORY] 
[--help] [--version] SOURCE [SOURCE]... DEST|DIRECTORY
Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.
....

ok.


//moma

((
   http://www.futuredesktop.org/OpenOffice.html
   http://www.futuredesktop.org/how2burn.html

   http://home.online.no/~osmoma/g++stl.html.html   :: Some C++ samples
))




Mark Hobley wrote:
> I am using Debian, and I have installed the package "argtable" from source.
> I have the following files on my system:
> 
> /usr/local/lib/libargtable2.a
> /usr/local/lib/libargtable2.so
> /usr/local/lib/libargtable2.so.3
> 
> I have downloaded the example file mv.c, from the argtable website at:
> http://argtable.sourceforge.net/
> 
> On compilation, I get errors as follows:
> 
> $ cc mv.c
> tcc: undefined symbol 'arg_str0'
> tcc: undefined symbol 'arg_lit0'
> tcc: undefined symbol 'arg_rem'
> tcc: undefined symbol 'arg_filen'
> tcc: undefined symbol 'arg_end'
> tcc: undefined symbol 'arg_nullcheck'
> tcc: undefined symbol 'arg_parse'
> tcc: undefined symbol 'arg_print_syntax'
> tcc: undefined symbol 'arg_print_glossary'
> tcc: undefined symbol 'arg_print_errors'
> tcc: undefined symbol 'arg_freetable'
> 
> I can produce an object file, as follows:
> 
> $ cc -c mv.c
> 
> This works ok and produces mv.o. (I don't know how to link this)
> 
> $ gcc mv.c
> 
> This errors as follows (some output has been lost off the top of the screen):
> /tmp/ccSgX617.o(.text+0x393): In function `main':
> : undefined reference to `arg_lit0'
> /tmp/ccSgX617.o(.text+0x3b2): In function `main':
> : undefined reference to `arg_lit0'
> /tmp/ccSgX617.o(.text+0x3eb): In function `main':
> : undefined reference to `arg_filen'
> /tmp/ccSgX617.o(.text+0x402): In function `main':
> : undefined reference to `arg_rem'
> /tmp/ccSgX617.o(.text+0x411): In function `main':
> : undefined reference to `arg_end'
> /tmp/ccSgX617.o(.text+0x4ce): In function `main':
> : undefined reference to `arg_nullcheck'
> /tmp/ccSgX617.o(.text+0x540): In function `main':
> : undefined reference to `arg_parse'
> /tmp/ccSgX617.o(.text+0x581): In function `main':
> : undefined reference to `arg_print_syntax'
> /tmp/ccSgX617.o(.text+0x5ac): In function `main':
> : undefined reference to `arg_print_glossary'
> /tmp/ccSgX617.o(.text+0x622): In function `main':
> : undefined reference to `arg_print_errors'
> /tmp/ccSgX617.o(.text+0x6e4): In function `main':
> : undefined reference to `arg_freetable'
> collect2: ld returned 1 exit status
> 
> I think maybe some environment variables need setting, or a config file needs 
> changing for the libraries to be located.
> 
> Thanks in advance to anyone who can help.
> 
> Regards,
> 
> Mark.
>

.