cd mseed/ && ( test -e Makefile || /opt/Qt/5.15.0/gcc_64/bin/qmake -o Makefile /opt/geopsy-3.3.2/mseed/mseed.pro ) && make -f Makefile install
make[1]: Entering directory '/opt/geopsy-3.3.2/mseed'
[ -d /opt/geopsy-3.3.2/lib ] || mkdir -p /opt/geopsy-3.3.2/lib
cp /opt/geopsy-3.3.2/lib/libmseed.a /opt/geopsy-3.3.2/lib
cp: '/opt/geopsy-3.3.2/lib/libmseed.a' and '/opt/geopsy-3.3.2/lib/libmseed.a' are the same file
make[1]: *** [Makefile:30: install] Error 1
make[1]: Leaving directory '/opt/geopsy-3.3.2/mseed'
make: *** [Makefile:152: sub-mseed-install_subtargets-ordered] Error 2
I haven't try Geopsy 3.3.3-preview but I will try it. I really don't have a clue with this problem. Is it from the os that I used or maybe from the Qt? Could you please give me any suggestions?
Good to read that you finally found a solution. Any particular error you fixed with Qt 5.15? I've never tried it, I'm still with Qt 5.14. If you still have the 3.4 folder available, I would be curious to get the full log (re-run make in it). The ending part you provided does not contain all the information needed to localize the error.
I'll check the former errors you got with 3.3.2. I think that a "make -i" would have provided a working package because the reported error is minor.