Howdy,
I upgraded JQt the other day and found this error:
$ ./jqt.sh
bin/jqt: symbol lookup error: /home/jfondren/j/j901/bin/libjqt.so:
undefined symbol: malloc, version Qt_5
Which is troubling as
$ ldd /home/jfondren/j/j901/bin/libjqt.so|grep libc
libc.so.6 => /lib64/libc.so.6 (0x00007fdfff070000)
...
$ nm -D /lib64/libc.so.6|grep malloc
000000000008c150 T __libc_malloc
000000000008c150 T malloc
...
So this is some wacky and new binary incompatibility.
I found however that building J and JQt from source worked
very well. So I did that, and then created a COPR repo so
that others on Fedora or CentOS can benefit:
https://copr.fedorainfracloud.org/coprs/jfondren/j/
https://copr.fedorainfracloud.org/coprs/jfondren/jqt/
The first URL has instructions, which are just:
sudo dnf copr enable jfondren/j
sudo dnf copr enable jfondren/jqt
sudo dnf install j jqt-unstable
COPR (Community Projects) is a Fedora service that builds
and hosts RPMs for free. So I'm not even the one building
this, I just supplied the .spec files.
If you're interested in those, you can go the URLs above
and then follow Builds -> (latest build id) -> (chroot
name, at the bottom) -> j.spec/jq.spec
For example:
https://download.copr.fedorainfracloud.org/results/jfondren/j/fedora-31-x86_64/01284100-j/j.spec
Most of that is derived from install-usr.sh
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