[xcrysden] xcrysden not starting with fedora 34 (gnome 40)

[Rudra Banerjee]

Hi,

I am trying to run xcrysden  in fedora 34.
On running xcrysden, I am getting error:

CRYSDEN_TOPDIR=/opt/xcrysden-1.6.2-bin-shared
XCRYSDEN_SCRATCH=/tmp/xcrys_tmp

Running on platform : unix
   Operating system : Linux
Package ImageMagick's convert: /usr/bin/convert
Package ImageMagick's import: /usr/bin/import
Executing: /opt/xcrysden-1.6.2-bin-shared/bin/ftnunit
Error in startup script:
Couldn't configure togl widget
    while executing
"togl .mesa  -width          400  -height         400  -ident
.mesa  -rgba           $toglOpt(rgba)           -redsize
$toglOpt(redsize..."
    (procedure "PlaceGlobWin" line 107)
    invoked from within
"PlaceGlobWin 0 [expr round(670 * $fac1)] [expr round(670 * $fac1)]"
    (procedure "ViewMol" line 25)
    invoked from within
"ViewMol ."
    invoked from within
"if { [llength $argv] > 2 } {
    parseComLinArg [lrange $argv 2 end]
} else {
    ViewMol .
}"
    (file "/opt/xcrysden-1.6.2-bin-shared/Tcl/xcInit.tcl" line 633)

This is apparently identical to
http://www.democritos.it/pipermail/xcrysden/2020-February/001980.html

which was working until fedora 33. But on 34, in spite of having Togl
in xcrysden itself as Togl2.0-8.4-Linux as /opt/xcrysden-1.6.2-bin-
shared/Togl2.0-8.4-Linux/lib and libTogl.so.2 -> libTogl2.0.so<http://libtogl2.0.so/>
I am still facing the same error.

Kindly help.
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