+# This installs all emcs-test-simple and its prerequisites. If you are lucky
+# you can just run this:
+#
+# bash ./install-from-git.sh
+#
+# However we do provide for some customization...
+#
+# 1. GIT PROTOCOL
+# ===============
+#
+# If your "git clone" can't handle the "http" protocol, you might be
+# able to use the "git" protocol. To do this set the GIT_PROTOCOL
+# variable like this:
+#
+# GIT_PROTOCOL=git sh ./install-from-git.sh
+#
+# 2. configure options (e.g --prefix)
+# ====================================
+
+# If you want to customize configuration parameters, for example,
+# choose where to install, you can pass configure options to this
+# script. For example:# can pass configure options.
+#
+# sh ./install-from-git.sh --prefix=/tmp
+#
+# 3. TO "sudo" or not to "sudo"?
+# ==============================
+# If you are running as root on a *Nix-like box, then there's no problem.
+#
+# If you are not running as root, "sudo" might be invoked to install
+# code. On systems that don't have a "sudo" command but need
+# filesystem permission, then you get by with setting SUDO_CMD to "su root-c"
+# For example:
+#
+# SUDO_CMD='su root -c' sh ./install-from-git.sh
+#
+# If you have sufficient filesystem permission (which is often the
+# case on Windows or cygwin) then you might not need or want sudo. So
+# here, set SUDO_CMD to a blank:
+#
+# SUDO_CMD=' ' sh ./install-from-git.sh
+#
+#
+# To finish here is an invocation using all 3 above options:
+# GIT_PROTOCOL='git' SUDO_CMD=' ' sh ./install-from-git.sh --prefix=/tmp
+