Finding packages and TCLLIBPATH?

Dave Kuhlman

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May 6, 2004, 8:03:47 PM5/6/04

to

Where can I find documentation on how to tell Tcl where to find
libraries/packages?

I've built and installed graphviz-1.12 from source. It created
libtkspline.so and placed it in /usr/local/lib/graphviz. But when
I run the doted demo, I get the following error message:

Error in startup script: can't find package Tkspline
while executing
"package require Tkspline"
(file "./doted" line 5)

I believe that fixing this has something to do with TCLLIBPATH and
/usr/local/lib/graphviz/pkgIndex.tcl. Am I correct? But I don't
know what to do with them.

Should I be setting TCLLIBPATH:

export TCLLIBPATH=/usr/local/lib/graphviz:$TCLLIBPATH

That did not seem to help.

Here is the content of /usr/local/lib/graphviz/pkgIndex.tcl:

package ifneeded Gdtclft 1.12 "
load [file join $dir libgdtclft.so] Gdtclft"
package ifneeded Tcldot 1.12 "
load [file join $dir libtcldot.so] Tcldot"
package ifneeded Tclpathplan 1.12 "
load [file join $dir libtclplan.so] Tclpathplan"
package ifneeded Tkspline 1.12 "
package require Tk 8.3
load [file join $dir libtkspline.so] Tkspline"
# end

A number of Web searches did not bring up anything helpful.

I also looked through several Tcl tutorials, but could not find
anything that covered this.

Dave

--
Dave Kuhlman

Bryan Schofield

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May 6, 2004, 10:22:24 PM5/6/04

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progamatically you can alter the "auto_path"

lappend ::auto_path [file join / some dir that has packages]

the auto_load/auto_path man page:
http://www.tcl.tk/man/tcl8.4/TclCmd/library.htm#M24

-- bryan

SM Ryan

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May 7, 2004, 5:04:42 AM5/7/04

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Dave Kuhlman <dkuh...@rexx.com> wrote:
# Where can I find documentation on how to tell Tcl where to find
# libraries/packages?
#
# I've built and installed graphviz-1.12 from source. It created
# libtkspline.so and placed it in /usr/local/lib/graphviz. But when
# I run the doted demo, I get the following error message:
#
# Error in startup script: can't find package Tkspline
# while executing
# "package require Tkspline"
# (file "./doted" line 5)
#
# I believe that fixing this has something to do with TCLLIBPATH and
# /usr/local/lib/graphviz/pkgIndex.tcl. Am I correct? But I don't
# know what to do with them.
#
# Should I be setting TCLLIBPATH:
#
# export TCLLIBPATH=/usr/local/lib/graphviz:$TCLLIBPATH

TCLLIBPATH is a Tcl style list, not a PATH style list. You want

export TCLLIBPATH="/usr/local/lib/graphviz $TCLLIBPATH"

# tclsh
% set env(TCLLIBPATH)
~user/wyrmwif/lib ~user/wyrmwif/lib/Darwin ~user/lib
% exit
# echo $TCLLIBPATH
~user/wyrmwif/lib ~user/wyrmwif/lib/Darwin ~user/lib

--
SM Ryan http://www.rawbw.com/~wyrmwif/
JUSTICE!
Justice is dead.

Dave Kuhlman

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May 7, 2004, 4:34:21 PM5/7/04

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SM Ryan wrote:

> Dave Kuhlman <dkuh...@rexx.com> wrote:

[snip]

> #
> # Error in startup script: can't find package Tkspline
> # while executing
> # "package require Tkspline"
> # (file "./doted" line 5)
> #
> # I believe that fixing this has something to do with TCLLIBPATH

> # and

> # /usr/local/lib/graphviz/pkgIndex.tcl. Am I correct? But I don't
> # know what to do with them.
> #
> # Should I be setting TCLLIBPATH:
> #
> # export TCLLIBPATH=/usr/local/lib/graphviz:$TCLLIBPATH
>
> TCLLIBPATH is a Tcl style list, not a PATH style list. You want
>
> export TCLLIBPATH="/usr/local/lib/graphviz $TCLLIBPATH"

Thanks. That worked.

Dave

--
Dave Kuhlman
http://www.rexx.com/~dkuhlman