Libxml2 depends on libiconv so that is the first thing to build. Like many GNU projects it is UNIX-centric, so building on Windows is not easy. However, some kind soul has created full instructions.

1. How To Use Xmllint
2. Xmllint For Windows
3. Xmllint Debian Install

In most Linux and BSD, xmllint is delivered or very easy to install. Xmllint can parse and validate one or more XML files with output as reports. A version for Windows is available, too! The tiny example XML file. Xmllint latest versions: 2.9.10, 2.9.9. Xmllint architectures: aarch64, armh, armv7hl, i586, x8664. Xmllint linux packages: rpm.

Once you have libiconv you will need to copy the built library from libiconv.lib to iconv.lib. This is due to a quirk in the libxml2 build where it assumes UNIX (whose linker removes the leading 'lib' characters).

Xmllint latest versions: 2.9.10, 2.9.9. Xmllint architectures: aarch64, armh, armv7hl, i586, x8664. Xmllint linux packages: rpm. To install xmllint on other platforms, do the following: On Linux: sudo apt-get install libxml2-utils. On Windows, the current binary distribution is managed by Igor Zlatkovic and there were some known issues with version 2.9.3 (20903) x8664. The validation messages did not contain the filename and would not work with this plugin. For users of Chocolatey, installing xmllint is rather simple: choco install xsltproc This package contains the xmllint, iconv, xmlcatalog, and xsltproc commands, and any dependencies are installed automatically. Xmllint is a tiny console-based application that has the role of emulating the xmllint function in Windows. The idea behind xmllint is to parse one or more XML files, documents that you need to. For users of Chocolatey, installing xmllint is rather simple: choco install xsltproc This package contains the xmllint, iconv, xmlcatalog, and xsltproc commands, and any dependencies are installed automatically.

Once the libxml2 source tarball has been downloaded, unzipped and de-tar'd, you will see there are instructions in win32/Readme.txt. These instructions are quite good as far as they go, but there are still a few gotchas which are covered here.
The commands need to be issued from a DOS cmd prompt. Start one. Execute the following commands to set the window up for using the Visual Studio compiler. I am using Visual Studio 2005, aka VC8 (aka vc80).

set PATH=pathToLibiconvDLL;%PATH%
rem to pck up vcvarsall.bat
set PATH=C:Program Files (x86)Microsoft Visual Studio 8VC;%PATH%
rem to pick up nmake and compiler
set PATH=C:Program Files (x86)Microsoft Visual Studio 8VCbin;%PATH%
cd win32
cscript configure.js compiler=msvc prefix=whereYouWantToInstall include=libiconvIncludeDir lib=libiconvLibDir debug=no

This will create an nmake file called Makefile.msvc. You need to edit it to set various compiler macros. Near line 65 you should see a line that looks like this:

CFLAGS = $(CFLAGS) /D_CRT_SECURE_NO_DEPRECATE /D_CRT_NONSTDC_NO_DEPRECATE

Follow it with this line:

CFLAGS = $(CFLAGS) /D_SECURE_SCL=0 /D_SCL_SECURE_NO_WARNINGS /D_SCL_SECURE_NO_DEPRECATE

This will ensure that those nasty checked iterators are turned off along with other string checking nastiness that noone wants.
Then enter these commands:

vcvarsall.bat
nmake
nmake install


How To Use Xmllint

You will now have an install directory with subdirectories include, bin and lib.
The bin directory will contain several test programs and the utility xmllint. But there is a problem. The exes do not have the manifests embedded. For each executable you need to run the mt command to add the manifest to the exe. The format of the command is:

mt -manifest pathToManifestFile -outputresource:pathToExe;1

Note the semicolon one which is part of the command.
If you dont merge the manifest with the executable the first error you get is that msvcr80.dll cannot be found. You can also get the error R6034.

So, I’m a Windows 7 user and need to use xmllint to check validation of .xml files. Xmllint is typically used on a Unix-based operating system and isn’t a standard part of Windows. It needs to be installed separately.

To download the program, visit here or here. Folders that need to be downloaded are:

Xmllint For Windows

• iconv
• libxml2
• libxmlsec
• libxslt
• zlib

Steps to install:

1. Extract the zip files and put it in one folder, I named it xmlan
2. Copy all the files in the bin folder of each download and create a new folder in xmlan to paste them all there. I named this new folder: XML
3. Put the xml file that you want to validate there too, e.g. example.xml

To validate XML files

Xmllint Debian Install

1. Open Powershell and open the directory containing XML applications and files. Mine is in C:UsersUserxmlanXML
2. Make it work with the below command:

To count the number of strings in XML files

1. Open CMD prompt and open the directory containing XML applications and files. Mine is in C:UsersUserxmlanXML
2. Type the below command:

References:

Special thanks to my hacker fellow 🐼 , who helped me find the above stuff within seconds.