Problem with extra-cmake-modules 5.7.0 on Ubuntu 20.04

[AFirooz]

Hi,
I'm not very experienced with cmake and ecm, but the focal version of ecm is 5.68 and the code cmake -DCMAKE_BUILD_TYPE=Release .. is creating an error message saying it needs at least an ecm version 5.7
Is there anything I can do?

Also my Qt5-default version is 5.12.8 , would that create any problems? if so, how can I fix it?

P.S. I tried installing ecm using the apt-get and couldn't find any ppa to get emc to upgrade. Also I couldn't find any instruction to build it from source code.

Regards,

[novomesk]

It should be possible to use qmake or qmake5 (to generate Makefile from qt-heic-image-plugin.pro) but Qt 5.12 is very old, the code will not compile.