Hi,
I next got to a point:
config= ure: error: GTK+ 2.24.0 or later is required.

I then did:
torben@= torben-Aspire-E5-773G:~/Downloads/lepton-eda-1.9.11$ sudo apt-get install l= ibgtk2.0-dev

And then:
torben AT torben-Aspire-E5-773G:~/Downloads/l= epton-eda-1.9.11$ ./configure --prefix=3D/home/torben/lepton

And the= n:
torben AT torben-Aspire-E5-773G:~/Downloads/lepton-eda-1.9.11$ make
<= br>That ended in a lot (and I mean a lot) of information that ended in what= is listed under AAA below.

Then finally:
torben AT torben-Aspire-E5= -773G:~/Downloads/lepton-eda-1.9.11$ make install

That ended in what= is listed under BBB below.

Obviously "make" and "mak= e install" did not go well - can I do anything now?

torben

AAA:
= =C2=A0 MAKEINFO lepton-scheme.html
/home/torben/Downloads/lepton-eda-1.9= .11/build-tools/missing: line 81: makeinfo: command not found
WARNING: &= #39;makeinfo' is missing on your system.
=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0You should only need it if you modified a '.texi' file, or=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0any other file indirectly affecting the= aspect of the manual.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0You might want = to install the Texinfo package:
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<https://www.gnu.org/softwar= e/texinfo/>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0The spurious makein= fo call might also be the consequence of
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0using a buggy 'make' (AIX, DU, IRIX), in which case you might=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0want to install GNU make:
=C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0<= https://www.gnu.org/software/make/>
make[3]: *** [Makefile:517: l= epton-scheme.html] Error 1
make[3]: Leaving directory '/home/torben/= Downloads/lepton-eda-1.9.11/docs/scheme-api'
make[2]: *** [Makefile:= 475: all-recursive] Error 1
make[2]: Leaving directory '/home/torben= /Downloads/lepton-eda-1.9.11/docs'
make[1]: *** [Makefile:567: all-r= ecursive] Error 1
make[1]: Leaving directory '/home/torben/Downloads= /lepton-eda-1.9.11'
make: *** [Makefile:499: all] Error 2

BBB= :
/home/torben/Downloads/lepton-eda-1.9.11/build-tools/missing: line 81:= makeinfo: command not found
WARNING: 'makeinfo' is missing on y= our system.
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0You should only need it if= you modified a '.texi' file, or
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0any other file indirectly affecting the aspect of the manual.
=C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0You might want to install the Texinfo package:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<https://www.gnu.org/software/texinfo/>
=C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0The spurious makeinfo call might also be the conseq= uence of
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0using a buggy 'make' = (AIX, DU, IRIX), in which case you might
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0want to install GNU make:
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<https://www.gnu.org/software/make= />
make[4]: *** [Makefile:517: lepton-scheme.html] Error 1
mak= e[4]: Leaving directory '/home/torben/Downloads/lepton-eda-1.9.11/docs/= scheme-api'
make[3]: *** [Makefile:699: install-am] Error 2
make[= 3]: Leaving directory '/home/torben/Downloads/lepton-eda-1.9.11/docs/sc= heme-api'
make[2]: *** [Makefile:475: install-recursive] Error 1
= make[2]: Leaving directory '/home/torben/Downloads/lepton-eda-1.9.11/do= cs'
make[1]: *** [Makefile:567: install-recursive] Error 1
make[1= ]: Leaving directory '/home/torben/Downloads/lepton-eda-1.9.11'
= make: *** [Makefile:864: install] Error 2