Add as a first step to install either Strawberry Perl or ActivePerl.

README

@@ -51,11 +51,15 @@ The steps
 On to building GnuCash now. The scripts have been set up to require as little
 manual actions as possible. The following should get you going:
 
-a. Download bootstrap_win_dev.vbs from the gnucash-on-windows
+a. Download and install either Strawberry Perl
+   (http://strawberryperl.com/) or AcivePerl
+   (http://www.activestate.com/activeperl/downloads).
+
+b. Download bootstrap_win_dev.vbs from the gnucash-on-windows
    repository on Github. Direct url:
    https://raw.githubusercontent.com/Gnucash/gnucash-on-windows/master/bootstrap_win_dev.vbs
 
-b. Run this script by double-clicking it and follow the instructions.
+c. Run this script by double-clicking it and follow the instructions.
    If the script's output window closes before you get to a "Happy hacking"
    message then something went wrong. To figure out what you can instead
    open a Windows command prompt (cmd.exe) and run the script as
@@ -86,7 +90,7 @@ The default values will all be found in 'defaults.sh'. You can override any of t
 in 'custom.sh'. The boostrap script you ran in step b. already created an initial
 version of this file.
 
-c. Open an Msys shell window. You do this by running
+d. Open an Msys shell window. You do this by running
    c:\gcdev\mingw\msys\1.0\msys.bat
    Unless you chose to install mingw/msys in another directory of course.
    Let the automated build begin by:
@@ -97,7 +101,7 @@ c. Open an Msys shell window. You do this by running
    If you chose to set up the build environment in a different location adjust
    the path accordingly.
 
-d. To generate a self-installing setup.exe file that contains *everything* run
+e. To generate a self-installing setup.exe file that contains *everything* run
    the following command after install.sh has completed:
 
    ./dist.sh