So I downloaded the latest version of git source, using wget from
https://mirrors.edge.kernel.org/pub/software/scm/git/git-2.9...
Then I found I needed zlib, from
https://www.zlib.net/zlib-1.2.12.tar.xz
And I also needed Tcl/Tk
https://prdownloads.sourceforge.net/tcl/tcl8.6.12-src.tar.gz
And I also needed autoconf
http://ftp.gnu.org/gnu/autoconf/autoconf-2.71.tar.gz
Autoconf needed a newer version of m4
http://ftp.gnu.org/gnu/m4/m4-1.4.19.tar.gz
m4 couldn't install... I'm not sure why... so I gave up at that point. 8(
So I downloaded the latest version of git source, using wget from
https://mirrors.edge.kernel.org/pub/software/scm/git/git-2.9...
Then I found I needed zlib, from
https://www.zlib.net/zlib-1.2.12.tar.xz
And I also needed Tcl/Tk
https://prdownloads.sourceforge.net/tcl/tcl8.6.12-src.tar.gz
And I also needed autoconf
http://ftp.gnu.org/gnu/autoconf/autoconf-2.71.tar.gz
Autoconf needed a newer version of m4
http://ftp.gnu.org/gnu/m4/m4-1.4.19.tar.gz
m4 couldn't install... I'm not sure why... so I gave up at that point. 8(