Disabling Threading in Tcl8.5 in Debian

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I’ve been spending the holidays to upgrade some of my own servers. One of them is the Sguil server I use. Until now it ran Debian Squeeze. On Debian Squeeze you could use tcl8.3, which has threading disabled. For Sguil tcl threading needs to be disabled:

ERROR: This version of tcl was compile with threading enabled. Sguil is NOT compatible with threading.

This is a compile time option in TCL, and the Debian Wheezy packages have it enabled by default. Here are the steps to create your own tcl deb with threading disabled:

# apt-get install dpkg-dev
# apt-get install devscripts

Get the tcl8.5 source package and build deps:

# apt-get source tcl8.5
# apt-get build-dep tcl8.5
# cd tcl8.5-8.5.11/

Next, edit the debian/rules file to disable threading. Remove the line:

                      --enable-threads \

Then, build the package:

# debuild -us -uc

And finally install the package:

# cd ..
# dpkg -i ../tcl8.5_8.5.11-2_amd64.deb

I followed this guide here at Debian Administration. It has some more detail on rebuilding debs.

3 thoughts on “Disabling Threading in Tcl8.5 in Debian”

  1. if you are using 8.6, you need to explicitly disable it by replacing –enable-threads by –disable-threads.

    • you also have to remove the line Tcl_GetMemoryInfo from debian/libtcl8.6.symbols : this one is only declared when building with threads

  2. I use tcl8.5 .. I have same trouble ” ERROR: This version of tcl was compile with threading enabled. Sguil is NOT compatible with threading” . I followed you and I still get it …please help me

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