gawk in MobaXterm

MobaXterm is a nice unix/linux console emulator. We were trying to use it to run a script for genetic evaluation, yet in one of the awk scripts we used the sentence
 BEGIN {FIELDWIDTHS = "12 14 8 2 3 3 8 1 3 14 14 3 8 14" }

it seems that this FIELDWIDTHS is restricted to gawk, but not to all implementations of awk, in particular not to the one in MobaXterm. However MobaXterm has the possibility of installing programs and plugins. Thus I try

[andres.ANDRESLEGAR2422] → apt-get

apt-cyg: Installs and removes Cygwin packages.

  "apt-cyg install <package names>" to install packages

So, I install it

[andres.ANDRESLEGAR2422] → apt-get install gawk

Trying to download file setup.bz2

Updated setup.ini

Found package gawk

Downloading gawk-4.1.3-1.tar.xz...

Unpacking gawk-4.1.3-1.tar.xz...

Extracting dependencies for usr/bin/gawk.exe...

Extracting dependencies for usr/bin/gawk-4.1.3.exe...

Extracting dependencies for usr/libexec/awk/pwcat.exe...

Extracting dependencies for usr/libexec/awk/grcat.exe...

Extracting dependencies for usr/lib/gawk/filefuncs.dll...

Extracting dependencies for usr/lib/gawk/fnmatch.dll...

Extracting dependencies for usr/lib/gawk/fork.dll...

Extracting dependencies for usr/lib/gawk/inplace.dll...

Extracting dependencies for usr/lib/gawk/ordchr.dll...

Extracting dependencies for usr/lib/gawk/readdir.dll...

Extracting dependencies for usr/lib/gawk/readfile.dll...

Extracting dependencies for usr/lib/gawk/revoutput.dll...

Extracting dependencies for usr/lib/gawk/revtwoway.dll...

Extracting dependencies for usr/lib/gawk/rwarray.dll...

Extracting dependencies for usr/lib/gawk/testext.dll...

Extracting dependencies for usr/lib/gawk/time.dll...

Package gawk requires the following packages, installing bash cygwin libgcc1 libgmp10 libintl8 libmpfr4 libreadline7

Package bash is already installed, skipping

Package cygwin is already installed, skipping

Found package libgcc1

Package libgcc1 is already included, skipping

Found package libgmp10

Installing libgmp10

Downloading libgmp10-6.1.0-3p1.tar.xz...

Unpacking libgmp10-6.1.0-3p1.tar.xz...

Extracting dependencies for usr/bin/cyggmp-10.dll...

Package libgmp10 requires the following packages, installing cygwin

Package cygwin is already installed, skipping

Package libgmp10 installed.

Found package libintl8

Package libintl8 is already included, skipping

Found package libmpfr4

Installing libmpfr4

Downloading libmpfr4-3.1.4-1.tar.xz...

Unpacking libmpfr4-3.1.4-1.tar.xz...

Extracting dependencies for usr/bin/cygmpfr-4.dll...

Package libmpfr4 requires the following packages, installing cygwin libgcc1 libgmp10

Package cygwin is already installed, skipping

Found package libgcc1

Package libgcc1 is already included, skipping

Package libgmp10 is already installed, skipping

Package libmpfr4 installed.

Found package libreadline7

Package libreadline7 is already included, skipping

Package gawk installed.

Rebasing new libraries

Found package rebase

Installing rebase

Downloading rebase-4.4.2-1.tar.xz...

Unpacking rebase-4.4.2-1.tar.xz...

Extracting dependencies for usr/bin/rebase.exe...

Extracting dependencies for usr/bin/peflags.exe...

Package rebase requires the following packages, installing coreutils cygwin grep gzip sed

Found package coreutils

Package coreutils is already included, skipping

Package cygwin is already installed, skipping

Package grep is already installed, skipping

Found package gzip

Package gzip is already included, skipping

Found package sed

Package sed is already included, skipping

Package rebase installed.

Then I change in the scripts to use /bin/gawk.exe 

Now everything seems to work fine.