Re: [Plplot-devel] need help with atexit error

[Joao C. <jc...@fe...>]

On Tuesday 29 January 2002 7:24 pm, Alan W. Irwin wrote:
> More information (hot off the presses).  I hope you read all your mail
> before responding to the previous messages in this thread.
>
>
> Have you cross-platform guys tried all the examples?  I wonder how many
> other platforms demand the -ltclmatrixd link line?  I wonder how Debian
> woody works fine without requiring it?

atexit() is in libc:

[jcard@feup] nm -p /lib/libc.so.6 | fgrep atexit
001161ac ? __elf_set___libc_atexit_element__cleanup__
00118aa0 b added_atexit_handler.186
001161ac a __start___libc_atexit
001161b0 a __stop___libc_atexit
0002f9a0 T __cxa_atexit
0002f960 T atexit
        ^^^
here it is defined as externaly visible.

> If I add -ltclmatrixd to the link lines in the examples Makefile,
> all C and Tk build and run without problems.  So problem solved, and
> thanks for listening as I worked through this.

I don't understand, as I get -ltclmatrixd in the link automatically:

[jcard@feup] make tkdemos
gcc -c          -O    -I. -I/usr/lib/java//include xtk01.c
gcc   xtk01.o \
       -L. -lplplotd -ltclmatrixd -o xtk01 -litk3.2 -ltk8.3 -litcl3.2=20
-ltcl8.3 -L/usr/X11R6/lib -lX11 -ldl -lm -lg2c -Wl,-rpath=20
-Wl,/home/jcard/plplot-devel/tmp

even if I remove the tcllibrary, it links OK;
[jcard@feup] gcc   xtk01.o -L. -lplplotd  -o xtk01 -litk3.2 -ltk8.3 -litc=
l3.2=20
-ltcl8.3 -L/usr/X11R6/lib -lX11 -ldl -lm -lg2c -Wl,-rpath=20
-Wl,/home/jcard/plplot-devel/tmp

But, with a standard make, "xtk01"f ails:

[jcard@feup] ./xtk01=20
% myplot
Segmentation fault

[jcard@feup] ./xtk01=20
% myplot 1

*** PLPLOT ERROR ***
plcol0: Please call plinit first, aborting operation
=2E..
and so on.

The README.tkdemos does not provides accurate instrutions on runing this=20
component of the demos, so I don't know if this is the correct way--I had=
 to=20
read the xtk01.c code.

I have further tested:

cdemos-OK
fdemos-OK
cxxdemos-OK
jdemos-OK
pythondemos-OK
tcldemos-OK
octave demos-OK
tkdemos-half OK, the "start plserver, source tkdemos etc" worked, the xtk=
??=20
demos didn't.

Joao