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IDL problem under Mandrake Linux [message #22449] Mon, 13 November 2000 00:00 Go to next message
David G. Grier is currently offline  David G. Grier
Messages: 8
Registered: September 1997
Junior Member
Hi All,

I've just upgraded my Mandrake Linux distribution to version 7.2 and
IDL has stopped
working in a strange and interesting way:

IDL> help, 2.D
<Expression> DOUBLE = 2.0000000
IDL> help, 2
<Expression> INT = 0
IDL> help, 2L
<Expression> LONG = 0
IDL> x = findgen(100)
% Array dimensions must be greater than 0.
% Execution halted at: $MAIN$

IDL seems to be having internal trouble with integer data types,
setting them all to 0.
This is the case with both IDL 5.3 and 5.4. IDL worked fine under
Mandrake 7.1, suggesting
that this is a library version incompatibility. Has anyone else seen
such behavior, and
is there a workaround (short of downgrading to 7.1 -- very undesirable)?

Thanks in advance,

David

P.S. Mandrake is supposed to be RedHat compatible -- silence on the
newsgroup from RedHat 7
users suggests otherwise.

--
============================================================ =============
David G. Grier Dept. of Physics, James Franck Institute and
(773) 702-9176 (voice) Institute for Biophysical Dynamics
(773) 702-5863 (FAX) The University of Chicago
d-grier@uchicago.edu 5640 S. Ellis Ave
http://griergroup.uchicago.edu/~grier/ Chicago, IL 60637
============================================================ =============
Re: IDL problem under Mandrake Linux [message #22583 is a reply to message #22449] Wed, 22 November 2000 08:16 Go to previous messageGo to next message
Nick Bower is currently offline  Nick Bower
Messages: 43
Registered: June 1999
Member
so what version of glibc does 7.2 use? (7.1 uses 2.1.3 of course).

i'm glad I saw this - I'm a 7.1 user and won't upgrade now.

BTW - did you have font problems using 7.1? I've had to put:

widget_control, default_font = $
'-adobe-helvetica-medium-r-*-*-*-*-*-*-*-*-*-*'

in an IDL startup file and

Idl*fontList: -adobe-helvetica-medium-r-*-*-*-*-*-*-*-*-*-*

in .Xdefaults since the generic 13x7 fonts weren't available in the 7.1 font
server.


nick
Re: IDL problem under Mandrake Linux [message #22744 is a reply to message #22583] Sat, 02 December 2000 22:11 Go to previous message
David G. Grier is currently offline  David G. Grier
Messages: 8
Registered: September 1997
Junior Member
Nick Bower wrote:

> so what version of glibc does 7.2 use? (7.1 uses 2.1.3 of course).
>
> i'm glad I saw this - I'm a 7.1 user and won't upgrade now.
>

Feel free to upgrade. Mandrake 7.2 is compatible with IDL 5.21, 5.3 and 5.4 in

medium security mode, but not in high security mode. High security mode uses
libsafe to protect against exploits in such libc routines as gets() and
scanf().
Apparently there's an incompatibility which renders IDL incapable of parsing
integer constants typed into the command line.

>
> BTW - did you have font problems using 7.1? I've had to put:
>
> widget_control, default_font = $
> '-adobe-helvetica-medium-r-*-*-*-*-*-*-*-*-*-*'
>
> in an IDL startup file and
>
> Idl*fontList: -adobe-helvetica-medium-r-*-*-*-*-*-*-*-*-*-*
>
> in .Xdefaults since the generic 13x7 fonts weren't available in the 7.1 font
> server.
>

Nope, no font problems for me in Mandrake 7.1 or 7.2. But then again, I almost
never
use IDLDE, being much more comfortable with the excellent idlwave-mode for
emacs


--
============================================================ =============
David G. Grier Dept of Physics, James Franck Institute, and
(773) 702-9176 (voice) Institute for Biophysical Dynamics
(773) 702-5863 (FAX) The University of Chicago
d-grier@uchicago.edu 5640 S. Ellis Ave
http://griergroup.uchicago.edu/~grier/ Chicago, IL 60637
============================================================ =============
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