Build a newer version of Git on Cygwin

git-build-cygwin.txt

Build a newer version of Git on Cygwin

1. Run the Cygwin setup utility and ensure you have the following packages installed:
  - gcc
  - autoconf
  - curl
  - libcurl-devel, required for http/https support (NOTE: this is an obsolete package, you will need to uncheck "Hide obsolete packages" when selecting packages to install)
  - make
  - libiconv
  - python
  - perl
  - gettext
  - you may need libiconv-devel and cygwin32-liviconv (see Marek's comment)

2. Clone the Git sources with git clone https://github.com/git/git.git. A couple of notes on that with respect to Git configuration:
  - Make sure core.autocrlf=false, otherwise you'll end up with DOS style line endings that cause the build to break.
  - I also had a screwy http.sslcainfo property value; either unset it or point it to /usr/ssl/certs/ca-bundle.crt.
  - cd git; git checkout v2.1.2 (or the tag you want to build)

3. From your newly cloned git repo, run the following commands:
  - make configure
  - ./configure
  - make
  - make install

Restart cygwin and do git --version.  Git should be installed in /usr/local/bin