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After upgrading Fedora 41 to 43 I found tcl-mysqltcl will not load. I removed all of the tcl packages and re-installed 1) tcl8 2) tcl-mysqltcl, which also installed tcl (tcl9.0) Reproducible: Always Steps to Reproduce: 1. save this script as test_mysql.tcl # script that will demonstrate the problem # enable either "package require" or "load" package require mysqltcl # load /usr/lib64/tcl9.0/mysqltcl-3.052/libmysqltcl3.052.so set m [mysqlconnect -user root -db mysql -password FOOBAR] foreach res [mysqlsel $m {select host from user} -flatlist] { puts $res } mysqlclose $m # script ENDS 2.execute: tclsh9.0 test_mysql.tcl tclsh8.6 test_mysql.tcl Actual Results: I. tclsh9.0 A. using "package require mysqltcl" cannot find symbol "mysqltcl_Init": /usr/lib64/tcl9.0/mysqltcl-3.052/libmysqltcl3.052.so: undefined symbol: _mysqltcl_Init B. using "load /usr/lib64/tcl9.0/mysqltcl-3.052/libmysqltcl3.052.so" version conflict for package "tcl": have 9.0.2, need 8.1 II. tclsh8.6 A. using "package require mysqltcl" can't find package mysqltcl B. using "load /usr/lib64/tcl9.0/mysqltcl-3.052/libmysqltcl3.052.so" this extension is compiled for Tcl 9.0 Expected Results: (list of host names from MySQL user table), eg, something like this: % % 127.0.0.1 <actual local hostname> localhost Additional Information: tcl-mysqltcl loaded and ran under Fedora 41 (and earlier releases, I have been using it since at least 2012). The problem appeared in February 2026 after upgrading from Fedora 41 to 43. I was able to compile and link the shared library libmysqltcl3.052.so with minor changes to mysqltcl.c.
My changes to mysqltcl.c were changes to function declarations, adding prototypes, replacing macros that are only defined in tcl8.h I used cpp logic to use either Tcl_InitStubs OR Tcl_PkgRequire, not both. I changed the TCL version in those calls, which I believe was one of the problems.
FEDORA-2026-8f25297371 (tcl-mysqltcl-3.052-28.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-8f25297371
FEDORA-2026-7af3438c4f (tcl-mysqltcl-3.052-29.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-7af3438c4f
Thanks for notifying me and sorry for the long wait for this fix. I had created a patch to support Tcl 9 for F42, but it seems that something broke it?! Nevertheless, I have updated the patch - and you were right that the Tcl version should have been increased. In case you are interested, the patch is here: https://src.fedoraproject.org/rpms/tcl-mysqltcl/blob/rawhide/f/0001-use-tcl9-datastructures.patch
FEDORA-2026-8f25297371 has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-8f25297371` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-8f25297371 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-7af3438c4f has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-7af3438c4f` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-7af3438c4f See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-7af3438c4f (tcl-mysqltcl-3.052-29.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2026-8f25297371 (tcl-mysqltcl-3.052-28.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report.