Sigil update on Linux (Ubuntu) 0.9.12 to 0.9.13

[Typographer]

Hello,
I'm trying to update Sigil from 0.9.12 to 0.9.13 in Ubuntu 18.04 following the guide on github. The make command is giving me the following error:

/usr/bin/ld: /usr/local/lib/libpython3.7m.a(signalmodule.o): undefined reference to symbol 'pthread_sigmask@@GLIBC_2.2.5'
//lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
src/CMakeFiles/sigil.dir/build.make:4969: recipe for target 'bin/sigil' failed
make[2]: *** [bin/sigil] Error 1
CMakeFiles/Makefile2:318: recipe for target 'src/CMakeFiles/sigil.dir/all' failed
make[1]: *** [src/CMakeFiles/sigil.dir/all] Error 2
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2

I suspect it's complaining because there's already a version of Sigil installed.
I tryed removing Sigil using sudo dpkg -r sigil but it returned the following message:

dpkg: warning: ignoring request to remove sigil which isn't installed

Then I tryed creating creating a uninstall script from sigil-build folder using sudo make uninstall but it returned the following message:

make: *** No rule to make target 'uninstall'.  Stop.

Is the error actually complaining about a previous installed version?
How can I update to version 0.9.13?

[patrik]

Did you run #sudo make install (or just #make install)?

Be really, really, sure you got each and every pre-requisite installed.

[DiapDealer]

I don't think it has anything to do with Sigil already being installed. Sigil will happily build and install over a previous installation (or beside one) with no errors. There may be runtime errors in that situation, but not build-time ones. And anyway.... you indicated that the error happens when running the "make" command (and that's a linker error I see). Something else is going on.

You're not trying to build 0.9.13 in the old 0.9.12's build directory, are you? The cmake configure command should be run in an empty directory. Clean out your build directory completely and start with the cmake configure command again.

EDIT: it also looks like you're using a non-repo version of Python3 (3.7.x) on your Bionic system. Did you build Sigil 0.9.12 against that same custom python, or was 0.9.12 built against the system python3 (3.6.x I think). The addon Python 3.7 could be part of the problem if it wasn't built with the necessary options.